{"title":"4-Channel Amplifiers","description":null,"products":[{"product_id":"audiobank-ad1600-4-4-channel-car-audio-amplifier","title":"Audio360 AD1600.4 4-Channel Car Audio Amplifier","description":"\u003cp\u003eThe Audio360 AD1600.4 is a four-channel car audio amplifier designed to add externally amplified power to a vehicle speaker system. It can drive front and rear speakers in a conventional four-channel layout or support two bridged output channels for higher-power applications. This makes it suitable for factory-system upgrades and custom audio installations that need flexible channel configuration.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the amplifier is rated for 60 watts RMS per channel, while its 2-ohm stereo rating is 90 watts RMS per channel. When bridged into 4-ohm loads, it is rated for 180 watts RMS across two channels. These ratings allow the amplifier to be matched with a range of full-range speakers or appropriately configured bridged speaker loads.\u003c\/p\u003e\u003cp\u003eThe AD1600.4 uses a Class AB amplifier design intended for full-range audio reproduction. Its listed 90 dB signal-to-noise ratio supports a low-noise signal path when the system is properly installed and gain-matched. Separate front and rear gain controls allow the input level to be adjusted for the source unit and system layout.\u003c\/p\u003e\u003cp\u003eFor system tuning, each channel pair provides selectable high-pass, low-pass, or full-range crossover operation. This lets installers high-pass smaller door speakers, run full-range speakers without filtering, or use low-pass filtering in a bridged setup where appropriate. RCA inputs for front and rear channels and RCA pass-through outputs support integration with compatible head units and additional amplifiers.\u003c\/p\u003e\u003cp\u003eThe compact chassis measures approximately 11.81 x 8.98 x 2.01 inches, helping it fit in locations with limited mounting space. Dual 25A onboard fuses and power\/protection status indicators support everyday system monitoring. The amplifier is a practical option for users building a four-speaker system or combining amplified speakers with a two-channel bridged configuration.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers up to four speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Configuration:\u003c\/strong\u003e Combines channel pairs for two higher-power 4-ohm outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass AB Circuitry:\u003c\/strong\u003e Provides full-range amplification for speaker-system upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Offers HPF, LPF, and full-range modes per channel pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Signal Connections:\u003c\/strong\u003e Includes separate front\/rear inputs and pass-through outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 25A Fuses:\u003c\/strong\u003e Provides onboard overcurrent protection for the amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe AD1600.4 has a compact aluminum-alloy housing with power, ground, remote, and speaker terminals grouped on one end of the chassis. Its input\/control side includes RCA connections, front and rear gain controls, crossover-mode switches, crossover-frequency controls, and power\/protection LEDs. The listed mounting type is freestanding, and mounting hardware is included according to the available product manual.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a dry, ventilated location away from heat, moisture, and direct sunlight. Use appropriately sized power, ground, remote, RCA, and speaker wiring; available installation guidance generally recommends 8-gauge power and ground wire, with an externally mounted 50A inline fuse near the battery. Connect 4-ohm speakers for bridged operation, set gain from minimum during initial setup, and use the crossover settings to match the speakers connected to each channel pair.\u003c\/p\u003e","brand":"Audio360","offers":[{"title":"Default Title","offer_id":45613549060166,"sku":"AD1600-4","price":123.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/81hQzROV4aL.jpg?v=1784350709"},{"product_id":"audison-af-c4-10-bit-4-channel-dsp-amplifier","title":"Audison AF C4.10 bit 4-Channel DSP Amplifier","description":"\u003cp\u003eThe Audison AF C4.10 bit is a compact four-channel car amplifier with an integrated 10-channel DSP platform. It is designed for systems that need both clean amplification and detailed signal tuning from one chassis. Four amplified channels power speakers directly, while six DSP-controlled preamp outputs support expansion with external amplifiers.\u003c\/p\u003e\u003cp\u003eRated at 90 watts RMS per channel at 4 ohms, the AF C4.10 bit is suited to actively powered front stages, upgraded door speakers, and multi-speaker OEM integration projects. It can also deliver 150 watts RMS per channel at 2 ohms. For higher-output applications, channel pairs may be bridged for 300 watts RMS x 2 at 4 ohms.\u003c\/p\u003e\u003cp\u003eThe built-in DSP operates at 24-bit\/96 kHz and supports an extended audio band reaching 40 kHz. Its processing tools include crossover filtering, equalization, time alignment, phase control, and real-time audio monitoring. This gives an installer the flexibility to tailor the system for vehicle acoustics and speaker placement.\u003c\/p\u003e\u003cp\u003eAudison D-Class amplification combines compact packaging with a rated 81% efficiency at rated power. The amplifier has a 10 Hz to 42 kHz bandwidth and a 0.03% THD figure at 1 kHz, 4 ohms, and 70% rated power. Its 600-watt total RMS capability provides useful headroom for a carefully matched speaker system.\u003c\/p\u003e\u003cp\u003eIntegration options include eight high-level inputs, eight low-level inputs, a TOSLINK optical S\/PDIF input, and six DSP preamp outputs. The high-level inputs support installation with many factory audio systems, while the optical input accepts stereo PCM signals up to 192 kHz\/24-bit. Optional expansion modules can add four high-level inputs or a second optical\/coaxial digital input.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel D-Class Amplifier:\u003c\/strong\u003e Delivers 90 watts RMS x 4 at 4 ohms or 150 watts RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Channel DSP Platform:\u003c\/strong\u003e Combines four amplified outputs with six DSP-controlled preamp outputs for system expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Pairs channels 1\/2 and 3\/4 for 300 watts RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-Bit\/96 kHz Processing:\u003c\/strong\u003e Provides high-resolution DSP processing with an audio band extending to 40 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Signal Integration:\u003c\/strong\u003e Accepts speaker-level, RCA preamp-level, and optical S\/PDIF source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Tuning Controls:\u003c\/strong\u003e Includes EQ, crossover, time alignment, phase adjustment, and RTA monitoring tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe AF C4.10 bit uses a compact D-Class platform measuring 200 x 134 x 47 mm and weighing 1.38 kg. Its integrated DSP and amplifier architecture helps reduce the number of separate components required in a tuned audio system. A built-in status logo indicates operating and protection conditions.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended because the amplifier requires correct power, ground, speaker, and source wiring as well as DSP configuration through Audison bit Drive software. Use it as a four-channel active amplifier, bridge it for a two-channel higher-power setup, or add external amplification through the six-channel DSP output. It includes cables for USB connection, control, DSP output, speaker output, preamp input, and speaker-level input.\u003c\/p\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":45614206648390,"sku":"AFC4-10BIT","price":1149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/615CVrN67tL.jpg?v=1784361120"},{"product_id":"audison-af-c4d-4-channel-class-d-amplifier","title":"Audison AF C4D 4-Channel Class D Amplifier","description":"\u003cp\u003eThe Audison AF C4D is a compact four-channel Class D amplifier designed to add clean, substantial power to an upgraded car audio system. It delivers 90 watts RMS to each of four 4-ohm channels, making it well suited to powering front and rear speakers or a fully active front stage. Its full-range output design also supports other system layouts when paired with appropriate external processing.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners building a system around an Audison AF bit amplifier, a standalone DSP, or a compatible aftermarket head unit. It accepts both preamp-level and speaker-level signals, so it can be integrated with factory-source systems as well as aftermarket receivers. Included input and output harnesses help streamline the connection process.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the AF C4D provides 90 watts RMS per channel; at 2 ohms, it provides 150 watts RMS per channel. Each channel pair can also be bridged for 300 watts RMS into a 4-ohm load. This flexibility allows it to run four speakers, a front speaker pair plus a bridged subwoofer, or other processor-managed channel configurations.\u003c\/p\u003e\u003cp\u003eAudison D-Class technology uses a high switching frequency, steep output filtering, and tightly specified components to support wide-bandwidth performance in a compact amplifier. The AF C4D has a specified 10 Hz to 40 kHz bandwidth and is compatible with Hi-Res playback requirements. Its measured signal-to-noise ratio is rated at 102 dBA at 1 V.\u003c\/p\u003e\u003cp\u003eThe AF C4D uses a straight-wire architecture without built-in analog crossover filtering, placing crossover, equalization, and tuning duties with the connected DSP or source equipment. This makes it a practical companion for a properly configured external processor rather than a standalone tuning amplifier. Its compact 200 x 134 x 47 mm enclosure helps fit high-power amplification into space-conscious installations.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour Amplified Channels:\u003c\/strong\u003e Supplies 90 watts RMS x 4 at 4 ohms for multi-speaker systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Delivers 300 watts RMS x 2 at 4 ohms when bridged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass D Architecture:\u003c\/strong\u003e Provides efficient power delivery in a compact chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Res Bandwidth:\u003c\/strong\u003e Extends from 10 Hz to 40 kHz for wide-band playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-In And Speaker-In:\u003c\/strong\u003e Supports aftermarket RCA outputs and factory speaker-level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal DSP Focus:\u003c\/strong\u003e Straight-wire design leaves crossover and tuning to external processing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe AF C4D is built in a compact, low-profile enclosure measuring 200 mm long, 134 mm wide, and 47 mm high. Its connection panel groups power, speaker-output, speaker-input, pre-input, level, remote, and optional remote-volume connections in one area. Status indicators provide power, clipping, thermal, load, voltage, and service information.\u003c\/p\u003e\u003cp\u003eInstall the amplifier with the supplied mounting screws in a secure location with suitable ventilation and use the specified 30 A fuse arrangement. It can receive a factory head unit's speaker-level signal through the included Speaker In harness or preamp signal through the included Pre In cables. Because the AF C4D has no adjustable crossover, use a DSP, processor, or source unit to establish crossover points and system tuning before operating speakers or subwoofers.\u003c\/p\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":45614207041606,"sku":"AFC4D","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71d8-AfiTiL.jpg?v=1784361165"},{"product_id":"audison-af-m4d-4-channel-class-d-amplifier","title":"Audison AF M4D 4-Channel Class D Amplifier","description":"\u003cp\u003eThe Audison AF M4D is a four-channel Class D car amplifier designed to add clean, substantial power to a processor-based audio system. It delivers 160 watts RMS to each of four 4-ohm channels, making it suitable for actively powered front stages, component speakers, or front-and-rear speaker systems. Its compact footprint helps bring higher-output amplification to installations where available mounting space is limited.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for enthusiasts building a system around an Audison Forza AF bit amplifier or a standalone signal processor. Its straight-wire architecture omits onboard analog crossover controls, allowing the external processor to manage crossover points, equalization, time alignment, and routing. That approach makes the AF M4D especially appropriate for precisely tuned active systems.\u003c\/p\u003e\u003cp\u003eAt 2 ohms, the AF M4D provides 260 watts RMS per channel, while each channel pair can be bridged to supply 520 watts RMS at 4 ohms. This gives installers flexibility to power four speakers individually or use two bridged channels for higher-power applications. Minimum impedance is 2 ohms in four-channel operation and 4 ohms when bridged.\u003c\/p\u003e\u003cp\u003eAudison D-Class technology uses higher switching frequency operation and a fourth-order analog low-pass filter design. The amplifier has a 10 Hz to 42 kHz bandwidth and is specified for Hi-Res compatibility through its extended high-frequency response. With 83% efficiency, it is engineered to deliver its rated output while managing power use in a compact amplifier format.\u003c\/p\u003e\u003cp\u003eBoth low-level preamp and high-level speaker inputs are provided for integration with aftermarket or factory audio sources. The high-level input section includes Audison Universal Speaker Simulator technology for compatibility with OEM head units. A supplied signal-input harness supports connection with compatible AF bit amplifiers, while an optional AF Link cable can connect AF bit DSP outputs to the amplifier's pre-in inputs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel RMS Power:\u003c\/strong\u003e Delivers 160 watts RMS per channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Operation:\u003c\/strong\u003e Produces 260 watts RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Supplies 520 watts RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Bandwidth:\u003c\/strong\u003e Covers 10 Hz to 42 kHz for wide-range playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessor-Oriented Architecture:\u003c\/strong\u003e Works with external DSP crossover and tuning controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Integrates with factory or aftermarket source units.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe AF M4D uses a compact Class D amplifier chassis measuring 240 x 156 x 47 mm and weighing 2.04 kg. Its design centers on externally managed signal processing rather than onboard analog filters. The amplifier includes two 30-amp fuses and is specified for 83% efficiency.\u003c\/p\u003e\u003cp\u003eUse the pre-in connection with an aftermarket source or DSP pre-outs, or use the speaker-in connection when retaining a factory head unit. Plan the system with an external processor when crossover filtering, equalization, or time alignment is needed, because the AF M4D does not include an adjustable crossover. For bridged use, connect only a 4-ohm load to channel pairs 1\/2 or 3\/4 and follow the manufacturer's wiring guidance.\u003c\/p\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":45614211760198,"sku":"AFM4D","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61zaedmKIcL.jpg?v=1784361299"},{"product_id":"audison-sr4-500-4-channel-class-d-amplifier","title":"Audison SR4-500 4-Channel Class D Amplifier","description":"\u003cp\u003eThe Audison SR4-500 is a compact four-channel Class D car amplifier designed to add substantial, configurable power to an upgraded speaker system. It can drive four speakers, operate as a three-channel amplifier with a bridged subwoofer channel, or run as a powerful two-channel amplifier. This flexibility makes it suitable for front-and-rear speaker upgrades, active systems, and front-stage-plus-subwoofer installations.\u003c\/p\u003e\u003cp\u003eAt 14.4 VDC and 1% THD, the SR4-500 is rated for 130 watts RMS per channel at 4 ohms or 220 watts RMS per channel at 2 ohms. Each channel pair can be bridged, with a two-channel configuration rated at 450 watts RMS per channel into 4 ohms. Its 2-ohm-stable four-channel output stage supports efficient use with many aftermarket speaker systems.\u003c\/p\u003e\u003cp\u003eThe amplifier accepts both RCA preamp signals and high-level speaker signals, helping it integrate with either an aftermarket receiver or a factory audio system. Balanced high-level inputs and the built-in Universal Speaker Simulator support connection to OEM source units. Selectable ART automatic remote turn-on can switch the amplifier on from compatible speaker-level signals.\u003c\/p\u003e\u003cp\u003eAudison D-Class Technology is used to keep the chassis compact while providing wide bandwidth, low measured distortion, and a 200 damping factor specification. The SR4-500 includes separate adjustable crossover controls for its front and rear channel sections. This allows the amplifier to be configured for full-range speakers, high-pass speakers, low-pass use, or a mixed speaker-and-subwoofer system.\u003c\/p\u003e\u003cp\u003eThe extruded aluminum chassis uses rounded corners and passive convection cooling rather than an internal fan. Its controls are positioned on the top panel beneath a satin-finished aluminum cover for access after installation. A full-range pre-out supports adding another amplifier, while the optional VCR-S2 remote control can adjust the B-channel level for systems using that channel section for bass.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Output:\u003c\/strong\u003e Delivers 130 W RMS x 4 at 4 ohms or 220 W RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Supports two-channel operation at 450 W RMS x 2 into 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Connects to factory speaker outputs or RCA-equipped aftermarket sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e Configures front and rear channels for full-range, high-pass, or low-pass operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eART Remote Turn-On:\u003c\/strong\u003e Selectable automatic turn-on works from compatible speaker-level input signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Fanless Chassis:\u003c\/strong\u003e Extruded aluminum construction uses passive convection cooling without an internal fan.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe SR4-500 uses an extruded aluminum enclosure with rounded corners, a top-mounted control section, and heat sinks on the short sides. Its maximum dimensions are 264 x 155 x 47.5 mm, allowing installation where a larger traditional amplifier may be difficult to place. Passive cooling avoids the noise and dust accumulation associated with internal cooling fans.\u003c\/p\u003e\u003cp\u003eUse RCA Pre-In connections with an aftermarket receiver or processor, or use the Speaker-In connections when retaining a compatible factory head unit. Match speaker impedance to the selected configuration: the amplifier supports 2 ohms per channel in four-channel mode and requires 4 ohms for bridged pairs. For a front-plus-subwoofer layout, channels can be configured in three-channel mode, and the B-channel bass boost and optional VCR-S2 control can be used where appropriate.\u003c\/p\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":45614269857862,"sku":"SR4-500","price":645.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71MThjLFl1L.jpg?v=1784364646"},{"product_id":"cerwin-vega-cvp1400-4-4-channel-class-d-car-amplifier","title":"Cerwin Vega CVP1400.4 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Cerwin Vega CVP1400.4 is a compact four-channel Class D car amplifier designed to add dedicated power to a factory or aftermarket audio system. It is suited to powering front and rear speakers, component sets, or two bridged speaker channels where a system calls for higher output. Its small chassis helps address installations where conventional amplifiers may be difficult to place.\u003c\/p\u003e\u003cp\u003eRated for 80 watts RMS per channel at 4 ohms and 140 watts RMS per channel at 2 ohms, the CVP1400.4 provides a practical power range for many car-audio speakers. It can also be bridged to deliver 290 watts RMS to each of two 4-ohm loads. This flexibility allows the amplifier to serve as a four-speaker amplifier or as part of a more focused two-channel system.\u003c\/p\u003e\u003cp\u003eClass D operation supports efficient power delivery in a compact enclosure. The amplifier uses a full MOSFET DC-DC PWM power supply, a double-sided two-layer circuit board, and surface-mount-device technology. Its frequency response extends from 10 Hz to 30 kHz, supporting full-range speaker applications.\u003c\/p\u003e\u003cp\u003eIntegration is supported through both low-level and high-level input capability. The high-level input includes auto turn-on operation for compatible 4V to 8V speaker-level signals, helping the amplifier work with many factory radios without requiring a separate line-output converter. Variable high-pass and low-pass filters allow each channel pair to be configured for the connected speakers.\u003c\/p\u003e\u003cp\u003eThe CVP1400.4 is a useful upgrade path for listeners who want more headroom and control than a radio's built-in amplifier can provide. It supports 2-ohm stereo loads and 4-ohm bridged loads, so speaker selection and wiring should be planned around those minimum impedances. Built-in protection provisions help safeguard the amplifier against short-circuit, low-impedance, reverse-polarity, and overheating conditions.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers up to four speakers from a compact amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e80W x 4 RMS at 4 Ohms:\u003c\/strong\u003e Provides dedicated full-range power for compatible speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Stereo Operation:\u003c\/strong\u003e Delivers up to 140W RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Supports 290W RMS x 2 into 4-ohm bridged loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs with Auto Turn-On:\u003c\/strong\u003e Helps integrate the amplifier with compatible factory radio outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable HPF and LPF:\u003c\/strong\u003e Lets you tailor frequency range to the speakers being used.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CVP1400.4 uses a compact 7.28-inch by 4.92-inch by 1.93-inch chassis. Its construction includes a full MOSFET DC-DC PWM power supply, double-sided two-layer PCB, and SMD technology. Power and protection indicators provide operating-status feedback, while the protection system addresses short circuit, low impedance, reverse polarity, and overheating conditions.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid surface with adequate ventilation and access to the side-panel controls. Use 2-ohm-or-higher stereo speaker loads or 4-ohm-or-higher bridged loads, and configure the high-pass or low-pass filters to suit the speakers. The manual specifies a negative-ground 12V DC vehicle electrical system, recommends a minimum of 8 AWG power and ground wiring, and states that the terminals accept up to 4 AWG cable.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45614312128582,"sku":"CER-CVP1400-4","price":196.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51Eu2usVBSL.jpg?v=1784365745"},{"product_id":"cerwin-vega-cvp2400-4-4-channel-class-d-amplifier","title":"Cerwin-Vega CVP2400.4 4-Channel Class D Amplifier","description":"\u003cp\u003eThe Cerwin-Vega CVP2400.4 is a compact four-channel Class D car amplifier for adding dedicated power to an aftermarket or factory audio system. It is designed for drivers who want to run front and rear speakers, a component speaker system, or a bridged two-channel configuration from one small amplifier. Its compact chassis helps solve mounting-space limitations in cars, trucks, and SUVs.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the CVP2400.4 is rated for 120 watts RMS per channel, while its 2-ohm rating reaches 210 watts RMS per channel. This gives it the capacity to support speakers that need more power and control than a typical radio’s built-in amplifier can provide. When correctly set up, it can bring greater output capability and system headroom to a vehicle audio upgrade.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a Class D design with a full MOSFET DC-DC PWM power supply. Its 10 Hz to 30 kHz frequency response supports full-range speaker applications, and adjustable high-pass and low-pass filters help tailor the signal for the speakers being used. The four-channel layout can also be bridged to provide 410 watts RMS to each of two 4-ohm loads.\u003c\/p\u003e\u003cp\u003eHigh-level inputs with automatic turn-on support integration with many factory radios, while low-level signal sensitivity supports aftermarket source units. This flexibility can simplify upgrades where replacing the existing radio is not preferred. A power\/protection indicator provides a visible operating-status reference.\u003c\/p\u003e\u003cp\u003eThe CVP2400.4 is part of Cerwin-Vega's CVP Series and measures less than nine inches long. It is suited to powering door speakers, component systems, or selected bridged speaker and subwoofer applications within its rated impedance limits. Built-in protection features are intended to help safeguard the amplifier during short-circuit, low-impedance, reverse-polarity, and overheating conditions.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers up to four speakers from one compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120W x 4 RMS at 4 Ohms:\u003c\/strong\u003e Provides dedicated power for compatible full-range speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Operation:\u003c\/strong\u003e Delivers up to 210W RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Supports 410W RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Helps integrate the amplifier with compatible factory radios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e Lets you set high-pass or low-pass filtering for the system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CVP2400.4 uses a small chassis measuring 8.86 by 4.92 by 1.93 inches. Its construction includes a full MOSFET DC-DC PWM power supply, double-sided two-layer circuit board, and surface-mount-device technology. Protection circuitry covers short circuits, low impedance, reverse polarity, and overheating.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a dry location with ventilation and access to its side-panel controls. It requires a negative-ground 12V DC vehicle electrical system; use appropriate fused power wiring, with the manufacturer documentation recommending a 4 AWG amplifier wiring kit. Maintain at least 2 ohms per channel in stereo operation or 4 ohms when bridged, and set crossover and gain controls to match the connected speakers.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45614313570374,"sku":"CER-CVP2400-4","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61qbTGOO_aL.jpg?v=1784365884"},{"product_id":"cerwin-vega-cvpm400-4d-4-channel-class-d-amplifier","title":"Cerwin-Vega CVPM400.4D 4-Channel Class-D Amplifier","description":"\u003cp\u003eThe Cerwin-Vega CVPM400.4D is a compact four-channel car audio amplifier designed to add dedicated power to front and rear speakers. It is a practical choice for replacing the limited output of a factory radio or supporting an aftermarket head unit. Its four-channel layout can drive a full speaker system or be configured for a three-channel setup using two bridged channels.\u003c\/p\u003e\u003cp\u003eRated at 60 watts RMS per channel at 4 ohms, the CVPM400.4D is suited to efficiently powering compatible coaxial or component speakers. It can also deliver 90 watts RMS per channel at 2 ohms when the speaker load and installation are appropriate. The amplifier is designed for clean, controlled speaker output rather than relying on head-unit power alone.\u003c\/p\u003e\u003cp\u003eFull Class-D topology and a full PWM power supply help the amplifier provide useful output from a notably small chassis. The compact 7.64-inch-long enclosure can make placement easier in vehicles with limited installation room. A 10.0 to 17.0V DC operating range supports use in conventional negative-ground 12V vehicle electrical systems.\u003c\/p\u003e\u003cp\u003eBuilt-in high-pass filtering is adjustable from 15 to 250 Hz, allowing the amplifier to be matched to door, dash, or rear-deck speakers. The high-pass crossover is always active, with its lowest setting intended to function close to full-range operation. Vega Bass Boost provides adjustable low-frequency boost from 0 to +12 dB at 45 Hz for systems that can accommodate it.\u003c\/p\u003e\u003cp\u003eThe CVPM400.4D accepts high- or low-level input signals, making it adaptable to many factory and aftermarket source units. It also includes power and protection status indicators, a remote level-control port, and bridge capability for two 4-ohm speaker loads. Pair it with properly matched speakers, suitable wiring, and a fused power connection for a compact multi-speaker upgrade.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers front and rear speakers from one compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-D Topology:\u003c\/strong\u003e Delivers efficient amplification in a small chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60W RMS at 4 Ohms:\u003c\/strong\u003e Provides dedicated power for compatible full-range speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Stereo Operation:\u003c\/strong\u003e Supports 90W RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable High-Pass Filter:\u003c\/strong\u003e Helps protect speakers from unwanted low frequencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- and Low-Level Inputs:\u003c\/strong\u003e Works with speaker-level or RCA source signals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CVPM400.4D uses a compact digital amplifier platform with a full PWM power supply and an internal ATC mini fuse. Its side-panel controls provide access to gain, high-pass crossover adjustment, bass boost, input connections, power terminals, and speaker terminals. Power and protection LEDs help indicate normal operation or a protection condition.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a solid, ventilated surface with its controls accessible after mounting. Use at least 8-gauge power and ground wire, 18-gauge remote wire, and a properly sized external fuse near the vehicle battery; maintain a minimum 2-ohm stereo load or 4-ohm bridged load. For speaker systems, begin high-pass adjustment around 60 to 80 Hz and set gain carefully to match the source unit without using it as a volume control.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45614316224582,"sku":"CER-CVPM400-4D","price":217.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/618zAZJW9XL.jpg?v=1784366182"},{"product_id":"cerwin-vega-cvpro2k4-4-channel-class-d-car-amplifier","title":"Cerwin-Vega CVPRO2K4 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Cerwin-Vega CVPRO2K4 is a four-channel Class D car audio amplifier for systems that need substantial power in a compact chassis. It can run front and rear speakers from four channels or be bridged for higher-power two-channel applications. Its 2-ohm-stable channel design provides flexibility when matching the amplifier to compatible speaker loads.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to enthusiasts building a high-output speaker system, upgrading component speakers, or designing a custom multi-amplifier installation. It supplies 325 watts RMS per channel at 4 ohms or 520 watts RMS per channel at 2 ohms. For bridged configurations, it is rated at 1,000 watts RMS per pair of channels into 4 ohms.\u003c\/p\u003e\u003cp\u003eThe CVPRO2K4 uses a full-range Class D topology and a full PWM power supply. Its specified bandwidth extends from 15 Hz to 20 kHz, allowing it to support bass, midrange, and high-frequency drivers when the system is configured appropriately. A damping factor greater than 150 and a specified THD figure of 0.1% at 1 kHz and 4 ohms support controlled signal delivery.\u003c\/p\u003e\u003cp\u003eSystem tuning is handled with selectable high-pass, flat, and low-pass crossover modes. The crossover network uses a 12 dB-per-octave slope, with variable high-pass, low-pass, and subsonic-filter adjustments. Variable bass boost is also provided for users who need to tailor low-frequency response carefully.\u003c\/p\u003e\u003cp\u003eDesigned for vehicle installation, the CVPRO2K4 has a compact 10.4 by 8.8 by 2.6 inch footprint. RCA preamp inputs connect the amplifier to a compatible source unit, while power, ground, remote-turn-on, and speaker terminals support a conventional amplified car-audio installation. Power\/protection and clipping indicators provide at-a-glance operating status.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers a full speaker system from a compact, efficient amplifier platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Channels:\u003c\/strong\u003e Supports compatible 2-ohm speaker loads on each unbridged channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Output:\u003c\/strong\u003e Combines channel pairs for higher-power 4-ohm speaker applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e Helps match output frequencies to speakers, subs, or pro-audio drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Bass Boost:\u003c\/strong\u003e Provides adjustable low-frequency boost from 0 to 12 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus And Clip LEDs:\u003c\/strong\u003e Shows power, protection, and clipping status during operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CVPRO2K4 uses a rugged, ventilated amplifier chassis with a compact footprint intended for custom vehicle audio installations. Its full PWM power supply, high-current design, and protection-status indication are intended for demanding amplified systems. The amplifier measures 10.4 by 8.8 by 2.6 inches, so it can fit where larger multi-channel amplifiers may be difficult to mount.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid surface with ventilation around the chassis and keep its control panel accessible for adjustment. Use a negative-ground 12-volt vehicle electrical system, route RCA signal cables away from power wiring where practical, and use properly fused power wiring. Cerwin-Vega recommends 0\/1-gauge OFC power and ground wire, and the amplifier is designed for a 150-amp fuse rating.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45614319337542,"sku":"CER-CVPRO2K4","price":586.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61yfZXh8N9L.jpg?v=1784366235"},{"product_id":"cerwin-vega-vcu84-4-channel-class-d-car-amplifier","title":"Cerwin Vega VCU84 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Cerwin Vega VCU84 is a compact four-channel full-range Class D amplifier for upgrading factory or aftermarket vehicle audio systems. It supplies dedicated amplification for front and rear speakers while using a chassis designed for installations where available space is limited. Its selectable input and turn-on options support a variety of source-unit configurations.\u003c\/p\u003e\u003cp\u003eRated for 80 watts RMS per channel at 4 ohms or 150 watts RMS per channel at 2 ohms, the VCU84 is intended for speaker systems that need more output than a head unit can provide. It can also be bridged to operate as two 300-watt RMS channels at 4 ohms. This makes it suitable for a conventional four-speaker setup or a two-channel bridged configuration when system design calls for it.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a full-range Class D topology with a full PWM power supply and an enhanced Power IR digital chipset. Its specified 10 Hz to 35 kHz bandwidth, adjustable high-pass and low-pass filters, and 12 dB-per-octave crossover slopes provide useful control when matching speakers to the system. The crossover can be set from 40 to 400 Hz for either high-pass or low-pass operation.\u003c\/p\u003e\u003cp\u003eFor integration flexibility, the VCU84 accepts both high-level and low-level input signals and offers a selectable 2-channel or 4-channel input configuration. Its Remote Turn-On Configurator supports conventional REM triggering, DC offset sensing, or VOX signal sensing. These options can simplify installation with many factory radios as well as aftermarket head units.\u003c\/p\u003e\u003cp\u003eCerwin Vega builds the VCU84 around a four-layer PCB with SMD construction and a water-resistant conformal coating. A DirectFET power MOSFET output stage, boosted RFI rejection, and protective operating design support dependable use in a vehicle environment. At 8.8 inches long, it can be placed in compact amplifier locations while still providing four amplified channels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers front and rear speakers from one compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-Watt RMS Rating:\u003c\/strong\u003e Delivers 150 watts RMS to each channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Output:\u003c\/strong\u003e Provides 300 watts RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters adjust from 40 to 400 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Signal Integration:\u003c\/strong\u003e Supports high-level and low-level inputs with 2CH\/4CH selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Turn-On Modes:\u003c\/strong\u003e REM, DC offset, and VOX activation options aid installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe VCU84 uses a compact matching-heatsink platform with a full-range Class D IR chipset, DirectFET power MOSFET output stage, and SMD circuitry on a four-layer PCB. Its conformal-coated circuit board is specified as water resistant, adding protection against moisture and environmental exposure. Status LEDs indicate normal operation or a protection fault.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid surface with ventilation around the chassis and keep its controls accessible for setup. Use a negative-ground 12-volt electrical system, at least 8-gauge power and ground wiring, and a properly placed battery-side fuse. The amplifier supports loads down to 2 ohms per channel in stereo operation or 4 ohms per bridged channel pair; do not chassis-ground speaker leads.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45619034095686,"sku":"CER-VCU84","price":541.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61WhY0G27vL.jpg?v=1784370185"},{"product_id":"cerwin-vega-xed4004d-4-channel-class-d-amplifier","title":"Cerwin-Vega XED4004D 4-Channel Class-D Amplifier","description":"\u003cp\u003eThe Cerwin-Vega XED4004D is a compact four-channel, full-range Class-D amplifier for adding dedicated power to an aftermarket car audio system. It is designed to drive front and rear speakers from a single chassis while giving installers crossover and gain controls for system tuning. Its four-channel layout suits vehicles receiving amplified component or coaxial speakers.\u003c\/p\u003e\u003cp\u003eWith 60 watts RMS per channel at 4 ohms and 90 watts RMS per channel at 2 ohms, the XED4004D provides a practical power upgrade over many head-unit amplifier sections. It can be used in a conventional four-speaker installation or in a three-channel arrangement that bridges one channel pair. The amplifier supports a 2-ohm minimum stereo load and a 4-ohm minimum bridged load.\u003c\/p\u003e\u003cp\u003eClass-D topology and a full PWM power supply support efficient operation in a small footprint. The amplifier has a 10 Hz to 30 kHz bandwidth, adjustable gain, and selectable high-pass, full-range, or low-pass crossover modes. These controls allow the amplifier to be configured around the speakers and system goals rather than relying solely on source-unit settings.\u003c\/p\u003e\u003cp\u003eFor signal integration, the XED4004D accepts both low-level RCA and high-level speaker inputs. This gives installers an option for connecting an aftermarket receiver with RCA outputs or a compatible factory-radio system without RCA preouts. Input sensitivity ranges are provided for both connection types to help match the amplifier to the source signal.\u003c\/p\u003e\u003cp\u003eThe XED4004D fits well into a speaker-focused upgrade path, such as powering front components and rear fill, or running a front stage with a bridged pair for another compatible load. Its compact 6.3 by 4.7 inch chassis is easier to place than larger conventional amplifiers, provided airflow remains available. A separate power-and-ground wiring kit, inline fuse protection, signal wiring, speakers, and installation hardware are required for a complete installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-D Topology:\u003c\/strong\u003e Delivers efficient amplified power in a compact chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossover:\u003c\/strong\u003e Choose high-pass, full-range, or low-pass operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA And High-Level Inputs:\u003c\/strong\u003e Supports aftermarket or compatible factory-radio signal connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVega Bass Boost:\u003c\/strong\u003e Provides adjustable 0 to +12 dB boost at 45 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus LEDs:\u003c\/strong\u003e Indicate normal power operation or a protection fault.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XED4004D uses a lightweight aluminum chassis that also helps dissipate heat. Its side-panel layout includes power terminals, speaker outputs, gain adjustment, crossover controls, input connections, and status indicators. The specified chassis dimensions are 6.3 x 4.7 x 1.8 inches.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid surface with ventilation around it and keep the controls accessible for setup. Use at least 8-gauge power and ground wire, protect the positive power lead with an external fuse near the battery, and connect the ground securely to bare vehicle chassis metal. Use 2-ohm-or-higher speaker loads in stereo operation or 4-ohm-or-higher loads when bridging channels.\u003c\/p\u003e","brand":"Cerwin Vega","offers":[{"title":"Default Title","offer_id":45620597063750,"sku":"CER-XED4004D","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/5193EsCNcpL.jpg?v=1784371067"},{"product_id":"crunch-dr-1325-4d-4-channel-class-d-car-amplifier","title":"Crunch DR-1325.4D 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Crunch DR-1325.4D is a compact four-channel car audio amplifier designed to add dedicated amplification to aftermarket speaker systems. Its Class D design supports full-range speaker setups as well as bridged configurations for systems that combine speakers and subwoofers. It is a practical option for vehicle owners who need flexible channel routing from one amplifier.\u003c\/p\u003e\u003cp\u003eThis V-DRIVE amplifier is rated by Crunch at up to 4 x 330 watts at 2 ohms, 4 x 165 watts at 4 ohms, or 2 x 660 watts bridged at 4 ohms. Those configuration choices allow it to run four speakers, two bridged pairs, or a mixed stereo-and-mono arrangement when the connected speakers and wiring are compatible. Its 2-ohm unbridged capability gives installers additional options when selecting speakers.\u003c\/p\u003e\u003cp\u003eAdjustable high-pass and low-pass crossovers operate from 40Hz to 400Hz with a 12dB-per-octave slope. This allows the amplifier to send appropriate frequency ranges to full-range speakers or subwoofers instead of relying only on the source unit for filtering. The onboard electronic crossover controls help tailor a system around the speakers being used.\u003c\/p\u003e\u003cp\u003eCrunch uses proprietary SPEED-FET MOSFET output devices and a PWM power supply in the DR-1325.4D. A QTD aluminum heat sink adds thermal mass to support heat dissipation during operation. The amplifier also includes low-noise preamplifier circuitry and RCA signal inputs for connection to compatible aftermarket source units or processors.\u003c\/p\u003e\u003cp\u003eAn LED VU meter and selectable logo illumination provide visual feedback during setup, while the protection diagnostic indicator monitors overload and speaker-short conditions. RCA output connections can be used to pass signal to a second amplifier for system expansion. With its small 6.85-inch chassis length, the DR-1325.4D can fit installations where mounting space is limited while still providing four-channel flexibility.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers four speakers or supports compatible bridged system layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Power Configuration:\u003c\/strong\u003e Delivers rated output at 2 ohms, 4 ohms, or bridged 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable 12dB Crossovers:\u003c\/strong\u003e Helps match frequency output to speakers and subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Adds heat-dissipating mass for sustained amplifier operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED VU Meter:\u003c\/strong\u003e Provides visual signal-level feedback when setting gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Diagnostics:\u003c\/strong\u003e Indicates overload and speaker-short protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe DR-1325.4D uses a black compact chassis with an aluminum QTD heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its selectable logo lighting can be set to constant red, VU meter operation, or off. The amplifier measures 6.85 inches long, 5.83 inches wide, and 2.2 inches high.\u003c\/p\u003e\u003cp\u003eUse 4 AWG power and ground cable with the amplifier's 4 AWG power terminals, and use an external 60A fuse. The installation guide specifies placing the power-cable fuse within 18 inches of the battery and mounting the amplifier securely with adequate ventilation. Connect compatible RCA signal cables, select the crossover mode for each channel pair, and set gain carefully to match the source unit output.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45622815686726,"sku":"DR-1325-4D","price":137.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71xE65G7cgL.jpg?v=1784372310"},{"product_id":"crunch-dr-2525-4d-4-channel-class-d-car-amplifier","title":"Crunch DR-2525.4D 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Crunch DR-2525.4D is a four-channel mobile amplifier designed to add dedicated amplification to an aftermarket or compatible vehicle audio system. It can power four speaker channels or be configured for bridged applications, giving installers flexibility when planning a full-range and subwoofer system. Its Class D design keeps the amplifier compact while supporting high-output system layouts.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to listeners upgrading factory-level amplification or building a custom multi-speaker setup. Variable high-pass and low-pass filters let each channel pair be tailored for the speakers connected to it. The crossover controls can help protect smaller speakers from low-frequency content or help blend amplified speakers with subwoofers.\u003c\/p\u003e\u003cp\u003eThe DR-2525.4D is rated for up to 2525 watts of maximum power, with output ratings of 320 watts per channel at 4 ohms and 630 watts per channel at 2 ohms. It also supports two bridged channels at 4 ohms, rated at 1260 watts per bridged channel. Use impedance-appropriate speakers and careful gain setting to build a balanced system.\u003c\/p\u003e\u003cp\u003eCrunch equips this V-DRIVE amplifier with proprietary SPEED-FET MOSFET components, a PWM power supply, and a low-noise preamplifier circuit. Its QTD aluminum heat sink is designed to disperse heat during normal operation. The amplifier also includes LED protection diagnostics for overload and speaker-short monitoring.\u003c\/p\u003e\u003cp\u003eInstallation-focused details include RCA inputs, nickel-plated brass terminals, screw-down connections, and an LED VU meter for visual gain adjustment. The selectable logo illumination can operate in constant red, VU-meter, or off modes. For a practical upgrade path, it can serve a four-speaker system, a mixed stereo-and-bridged system, or two bridged speaker\/subwoofer channels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers four speakers or supports multiple bridged system configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2525W Maximum Output:\u003c\/strong\u003e Provides high-output capability for custom vehicle audio systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable 12dB Crossovers:\u003c\/strong\u003e Helps match frequency ranges to connected speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Aids heat dispersion during normal music playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED VU Meter:\u003c\/strong\u003e Provides visual feedback when setting amplifier gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Logo Lighting:\u003c\/strong\u003e Choose constant red, VU-meter, or off illumination.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe DR-2525.4D uses a black V-DRIVE chassis with an aluminum QTD heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its compact amplifier chassis is listed at 6.85 x 5.83 x 2.2 inches, while the manufacturer also lists shipping dimensions of 9.65 x 7 x 3.23 inches. LED power\/protection indicators and the VU meter place key status and setup feedback on the amplifier.\u003c\/p\u003e\u003cp\u003eUse 4 AWG cable for the 12V and ground terminals, as specified by Crunch, and protect the power run with the required external 80A fuse. The speaker terminals accept up to 8 AWG wire, and signal input is through RCA connections with 0.2-6V input sensitivity. Mount the amplifier securely in a ventilated location, set crossover mode separately for channel pairs, and set gain with appropriate test equipment rather than relying on the VU meter alone.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45623028875334,"sku":"DR-2525-4D","price":145.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71uOshLuLSL.jpg?v=1784372417"},{"product_id":"crunch-gp-1000-4-4-channel-car-audio-amplifier","title":"Crunch GP-1000.4 4-Channel Car Audio Amplifier","description":"\u003cp\u003eThe Crunch GP-1000.4 is a four-channel Class A\/B car audio amplifier designed to add external amplification to a speaker-based system. It provides four channels for front and rear speakers, with the flexibility to bridge channel pairs when a two-channel configuration is preferred. Its manufacturer-stated maximum output is 125 watts by four channels at 4 ohms, 250 watts by four channels at 2 ohms, or 500 watts by two channels bridged at 4 ohms.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to vehicle owners upgrading beyond head-unit power or integrating amplification with a factory radio. RCA low-level inputs support aftermarket source units, while speaker-level inputs provide an option for systems without RCA outputs. Input sensitivity is adjustable from 0.2 to 9 volts for matching the amplifier to the source signal.\u003c\/p\u003e\u003cp\u003eThe GP-1000.4 uses a Class A\/B topology and a low-noise preamplifier circuit for full-range audio amplification. Its 10 Hz to 22 kHz frequency response supports use with component speakers, coaxial speakers, or appropriately configured subwoofer channels. Variable electronic crossovers help divide frequencies for the speakers connected to each channel pair.\u003c\/p\u003e\u003cp\u003eCrunch equips the amplifier with SPEED-FET MOSFET output devices and a pulse-width-modulated power supply. The aluminum heat sink uses QTD, or Quick Thermal Dispersion, design to help manage operating heat. LED diagnostics provide power and protection status for monitoring overload or speaker-short conditions.\u003c\/p\u003e\u003cp\u003eFor system planning, the amplifier can operate in four-channel stereo, stereo plus bridged mono, dual stereo bridged, or dual bridged mono arrangements. It is stable down to 2 ohms per channel in unbridged use and requires a 4-ohm minimum load when bridged. This makes it a flexible choice for powering a conventional four-speaker system or for combining speaker channels with a bridged channel pair.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class A\/B Design:\u003c\/strong\u003e Powers front and rear speakers from one amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stereo Stability:\u003c\/strong\u003e Supports compatible 2-ohm loads on individual channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Bridged Operation:\u003c\/strong\u003e Lets each channel pair drive one compatible bridged load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps tailor high-pass or low-pass frequency routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA And Speaker-Level Inputs:\u003c\/strong\u003e Works with aftermarket radios or compatible factory-radio signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Helps disperse heat during normal amplifier operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GP-1000.4 has a black-and-red finish, an aluminum heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its compact listed dimensions are 10 inches long, 8 inches wide, and 2.375 inches high, with a listed weight of 6.25 pounds. LED power and protection indicators are located on the amplifier for status monitoring.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a ventilated location and do not install it upside down. The manufacturer specifies 4 AWG power and ground terminals, 12 AWG speaker terminals, and one 30A fuse; the power cable should be fused within 18 inches of the battery. Use RCA inputs when available, or connect the supplied high-level input harness to compatible factory speaker wiring when integrating with an OEM source unit.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45623705337926,"sku":"GP-1000-4","price":133.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61C1xoSFhKL.jpg?v=1784372928"},{"product_id":"crunch-gp-1500-4-4-channel-car-amplifier","title":"Crunch GP-1500.4 4-Channel Car Amplifier","description":"\u003cp\u003eThe Crunch GP-1500.4 is a four-channel Class A\/B car audio amplifier designed to add external power and system flexibility to a vehicle sound system. It can drive four speakers in stereo or support bridged channel pairs for higher-power applications. This makes it suitable for upgrading factory or aftermarket speaker systems while retaining control over system configuration.\u003c\/p\u003e\u003cp\u003eWith output ratings of 4 x 185 watts at 4 ohms and 4 x 375 watts at 2 ohms, the GP-1500.4 is built for systems using compatible full-range speakers. It can also bridge into two 4-ohm loads at 750 watts per channel pair. The amplifier supports four-channel stereo, dual stereo bridged, stereo plus bridged mono, and dual bridged mono operating modes.\u003c\/p\u003e\u003cp\u003eThe built-in variable electronic crossover helps tailor the signal sent to connected speakers. Selectable full-range, high-pass, and low-pass modes allow installers to configure channel pairs for component speakers, coaxial speakers, or compatible subwoofer duty. Variable high-pass and low-pass controls cover a 40 to 400 Hz range.\u003c\/p\u003e\u003cp\u003eThe amplifier accepts both RCA low-level and speaker-level inputs, providing connection options for aftermarket receivers and many factory audio systems. Its adjustable 0.2 to 9V input sensitivity range supports level matching to the source unit. A low-noise preamplifier circuit is used ahead of the amplifier section.\u003c\/p\u003e\u003cp\u003eCrunch equips the GP-1500.4 with SPEED-FET MOSFET output components, a pulse-width-modulated power supply, and an aluminum heat sink using Quick Thermal Dispersion technology. Switchable bass boost provides 0, +6, or +12 dB settings. The compact chassis can serve as the power stage for a four-speaker upgrade or a mixed system using stereo speakers and bridged channels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers up to four speakers from one chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Outputs:\u003c\/strong\u003e Delivers 375 watts per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Channel Pairs:\u003c\/strong\u003e Provides two 750-watt outputs into 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossover:\u003c\/strong\u003e Select high-pass, low-pass, or full-range operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Connects with factory or aftermarket source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchable Bass Boost:\u003c\/strong\u003e Offers 0, +6, and +12 dB settings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GP-1500.4 uses a black and red aluminum heat-sink chassis with Class A\/B circuitry. Its power section incorporates a high-energy PWM power supply and SPEED-FET MOSFET components. Nickel-plated brass terminals with screw-down connections provide the amplifier's power and speaker connection points.\u003c\/p\u003e\u003cp\u003eMount the amplifier in a secure, ventilated location away from moisture and excessive heat. Use up to 4 AWG power and ground wire, use speaker wire up to 12 AWG at the amplifier terminals, and protect the power connection with appropriate fusing. Configure each channel pair for full-range, high-pass, or low-pass use, and maintain a 2-ohm minimum load per unbridged channel or a 4-ohm minimum load when bridged.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45623991664710,"sku":"GP-1500-4","price":139.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71JMGioEtNL.jpg?v=1784373086"},{"product_id":"crunch-gp-2000-4-4-channel-class-ab-car-amplifier","title":"Crunch GP-2000.4 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Crunch GP-2000.4 Ground Pounder is a four-channel car audio amplifier for powering an upgraded speaker system from a factory or aftermarket source unit. It provides four-channel operation for front and rear speakers, with bridged configurations available when a system needs higher output on paired channels. High-level inputs also make it suitable for installations that retain a factory radio without RCA preamp outputs.\u003c\/p\u003e\u003cp\u003eThis Class A\/B amplifier is rated for 4 x 250 watts at 4 ohms or 4 x 500 watts at 2 ohms. For systems that need paired-channel output, it can be configured for 2 x 1,000 watts bridged at 4 ohms. Its selectable operating arrangements support four-channel stereo, dual stereo bridged, stereo plus bridged mono, or dual bridged mono setups.\u003c\/p\u003e\u003cp\u003eThe GP-2000.4 is designed for installers and enthusiasts building a multi-speaker system with adjustable signal shaping. Variable electronic crossovers help direct suitable frequency ranges to connected speakers, while the built-in bass control and selectable bass boost allow system-level adjustment. Input sensitivity is variable from 0.2 to 9 volts to accommodate a range of source-unit signal levels.\u003c\/p\u003e\u003cp\u003eCrunch uses SPEED-FET MOSFET output devices and a high-energy pulse-width-modulated power supply in this amplifier. Its QTD aluminum heat sink is intended to disperse heat during operation, and the low-noise preamplifier circuit supports a clean signal path from the source unit. LED diagnostics provide visual indication for overload and speaker-short protection.\u003c\/p\u003e\u003cp\u003eFor an upgrade path, the GP-2000.4 can run four speakers independently or be bridged into two higher-output channels at the specified 4-ohm load. RCA inputs support conventional aftermarket head-unit connections, while high-level inputs provide an option for OEM integration. An RCA output can also pass signal to a second amplifier when expanding the system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Bridging:\u003c\/strong\u003e Supports two bridged 4-ohm channel pairs when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps tailor frequency ranges for connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Connects to factory radios without RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Helps disperse heat during normal operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Indicates overload and speaker-short protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GP-2000.4 has a black and red chassis with an aluminum QTD heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its compact amplifier dimensions are 11.5 inches long, 8 inches wide, and 2.375 inches high. The design also incorporates SPEED-FET MOSFET output components, a low-noise preamplifier circuit, and a pulse-width-modulated power supply.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a secure surface with adequate ventilation and do not install it upside down. The power and ground terminals accept 4 AWG cable, while speaker terminals accept 12 AWG cable; the manufacturer specifies 30A x 2 fusing. Use RCA inputs with compatible preamp outputs, or use the supplied high-level-input harness with a source unit that lacks RCA outputs, and observe the labeled speaker and bridged-output connections.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45624154947654,"sku":"GP-2000-4","price":137.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61feOZ4WLmL.jpg?v=1784373173"},{"product_id":"crunch-pz21530-4d-1500w-4-channel-class-d-amplifier","title":"Crunch PZ21530-4D 1500W 4-Channel Class D Amplifier","description":"\u003cp\u003eThe Crunch PZ21530-4D is a four-channel Class D car audio amplifier designed to add external power and tuning flexibility to an aftermarket or factory-based sound system. It can drive front and rear speakers in a conventional four-channel layout, or it can be configured for bridged operation where appropriate. Its compact chassis helps make it practical for vehicle installations where amplifier space is limited.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to listeners upgrading factory speaker output, adding power to component speakers, or building a mixed speaker-and-subwoofer system. It accepts low-level RCA signals as well as speaker-level input, allowing integration with source units that do not provide RCA preamp outputs. A full-range RCA output can also pass signal to an additional amplifier.\u003c\/p\u003e\u003cp\u003eOutput is rated at 4 x 375 watts at 2 ohms, 4 x 200 watts at 4 ohms, or 2 x 750 watts bridged at 4 ohms. These configuration options allow the amplifier to support a four-speaker system or a combination of speakers and bridged channels. Proper speaker impedance and wiring configuration are important when selecting an operating mode.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossovers provide 12 dB-per-octave filtering from 40 to 400 Hz. This lets an installer remove deep bass from smaller speakers or direct lower frequencies to compatible subwoofer channels. Built-in bass control and adjustable input sensitivity further support system-level tuning.\u003c\/p\u003e\u003cp\u003eThe PZ21530-4D uses Crunch SPEED-FET MOSFET output technology, a MOSFET pulse-width-modulation power supply, and QTD quick thermal dispersion heat management. Nickel-plated brass connections and hex set-screw terminals support secure power, ground, and speaker wiring. LED protection diagnostics provide visual status monitoring for overload and speaker-short protection.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers a full speaker system or bridged channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500-Watt Maximum Power:\u003c\/strong\u003e Provides power capacity across four amplifier channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stereo Capability:\u003c\/strong\u003e Delivers up to 375 watts per channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps match frequency output to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA And Speaker-Level Inputs:\u003c\/strong\u003e Supports aftermarket and many factory-radio installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Indicates overload and speaker-short protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe amplifier has a compact black and gray chassis measuring 11.75 by 7 by 3.25 inches. Its design incorporates QTD thermal dispersion, SPEED-FET MOSFET output devices, a MOSFET PWM power supply, and nickel-plated brass connections with hex set-screw terminals. These components are intended to support efficient operation and secure electrical connections.\u003c\/p\u003e\u003cp\u003eMount the amplifier to a solid surface with adequate ventilation and do not mount it upside down. Use 4 AWG power and ground wiring, protect the positive battery cable with the specified external 40-amp fuse within 18 inches of the battery, and use 12 AWG speaker wiring. Set gain and crossover controls after confirming speaker impedance, channel mode, and polarity; professional installation is advisable for complex or bridged systems.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45624269602886,"sku":"PZ21530-4D","price":138.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61sOmUQkvuL.jpg?v=1784373308"},{"product_id":"crunch-sa-1100-4-4-channel-class-ab-car-amplifier","title":"Crunch SA-1100.4 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Crunch SA-1100.4 is a four-channel Class AB car amplifier designed to add dedicated amplification to a factory or aftermarket audio system. It can power front and rear speakers from four channels or be configured to bridge channel pairs for higher-output two-channel applications. Its selectable operating modes make it suitable for straightforward speaker upgrades as well as mixed speaker-and-subwoofer system layouts.\u003c\/p\u003e\u003cp\u003eAt its published output ratings, the SA-1100.4 delivers 40 watts per channel into 2 ohms or 30 watts per channel into 4 ohms. When two channel pairs are bridged into 4-ohm loads, it provides 60 watts per bridged channel pair. This flexibility helps match the amplifier to common full-range speaker configurations without requiring separate amplifiers for every setup.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Class AB topology with a pulse-width-modulated power supply and Crunch SPEED-FET MOSFET output-device technology. A low-noise preamplifier circuit and RCA signal connections support clean signal transfer from compatible source units. High-level inputs also allow integration with source units that do not provide RCA preamp outputs.\u003c\/p\u003e\u003cp\u003eBuilt-in crossover controls allow the amplifier to be tuned for full-range speakers, high-pass applications, or low-pass applications. Separate crossover controls for channel pairs 1\/2 and 3\/4 make it possible to configure different speaker roles in the same installation. The selectable bass control provides an additional low-frequency adjustment option when system tuning calls for it.\u003c\/p\u003e\u003cp\u003eThe SA-1100.4 fits naturally into an entry-level or replacement amplifier upgrade path for vehicles needing more control than a head unit's internal amplifier can provide. It includes RCA input and output connections for signal routing to another amplifier, helping support expandable systems. Its combination of stereo, bridged, and mixed-mode operation gives installers multiple ways to allocate its four channels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class AB Design:\u003c\/strong\u003e Powers up to four speakers from one chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Operating Modes:\u003c\/strong\u003e Supports stereo, bridged, and mixed-channel configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossover:\u003c\/strong\u003e Helps direct appropriate frequencies to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Connects with factory radios lacking RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Input And Output:\u003c\/strong\u003e Supports low-level signal input and amplifier expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Status Indicators:\u003c\/strong\u003e Lighted diagnostics monitor overload and speaker-short conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe SA-1100.4 uses an aluminum QTD heat sink intended to disperse operating heat, along with nickel-plated brass connection terminals and screw-down connectors. Its Class AB circuit design uses a pulse-width-modulated power supply and SPEED-FET MOSFET output devices. LED diagnostic indicators are provided for overload and speaker-short protection monitoring.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a ventilated location and do not install it upside down. It accepts low-level RCA input or high-level speaker input through the supplied harness, with RCA output available for another amplifier. Use the 4 AWG power and ground terminals, 12 AWG speaker terminals, a 30A fuse, and set the input level and crossover controls to suit the connected speakers and source unit.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45624922603590,"sku":"SA-1100-4","price":118.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61FzKW6YyrL.jpg?v=1784373702"},{"product_id":"gravity-gbr250-4d-compact-4-channel-digital-amplifier","title":"Gravity GBR250-4D Compact 4-Channel Digital Amplifier","description":"\u003cp\u003eThe Gravity GBR250-4D is a micro ultra-compact, four-channel full-range digital amplifier for adding external power where installation space is limited. It is rated for 360 watts RMS and uses RCA stereo inputs for connection with compatible source units. Its small footprint makes it a practical option for compact mobile-audio installations.\u003c\/p\u003e\u003cp\u003eThis amplifier is designed for stereo front-and-rear speaker systems in cars, motorcycles, RVs, ATVs, boats, and similar applications. Four channels allow it to power separate front and rear speaker pairs from one amplifier. It can also be configured in bridged operation for a two-channel setup when the connected speakers meet the stated load requirement.\u003c\/p\u003e\u003cp\u003eThe GBR250-4D is stable at 2-ohm and 4-ohm loads, providing 90 watts RMS per channel at 2 ohms. In bridged operation, it is rated at 180 watts RMS by two channels at 4 ohms. These published ratings help match the amplifier to compatible speaker wiring and power-handling needs.\u003c\/p\u003e\u003cp\u003eSelectable low-pass, full-range, and high-pass crossover modes provide basic system-tuning flexibility. High-pass filtering can be used for speaker channels, while low-pass filtering supports installations that require a lower-frequency signal path. Full-range mode leaves crossover selection open for systems using external processing or speaker-specific filtering.\u003c\/p\u003e\u003cp\u003eMeasuring 1.5 x 3.25 x 7.5 inches, the GBR250-4D is intended for installations where a conventional full-size amplifier may be difficult to place. It uses a surface-mount installation format and can fit into compact custom audio layouts. RCA stereo input compatibility makes it suitable for systems built around a source unit with RCA preamp outputs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers front and rear speaker channels from one compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e360 Watts RMS:\u003c\/strong\u003e Provides the published total continuous power rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable:\u003c\/strong\u003e Supports compatible 2-ohm speaker loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Enables two-channel operation at 4 ohms bridged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Stereo Input:\u003c\/strong\u003e Connects with compatible RCA-equipped source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Offers LPF, full-range, and HPF operating modes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GBR250-4D uses a compact digital amplifier design with a published 1.5 x 3.25 x 7.5-inch size. The available technical information identifies it as a surface-mount amplifier, but does not specify the enclosure material. Its compact form is intended to help accommodate installations with limited available mounting space.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure mounting surface with access for power, ground, speaker wiring, and RCA signal cables. Use the RCA stereo input with a compatible source unit, and select LPF, full-range, or HPF mode to suit the connected channels. Confirm speaker impedance and wiring before use: the amplifier is rated for 90 watts RMS x 4 at 2 ohms or 180 watts RMS x 2 at 4 ohms bridged.\u003c\/p\u003e","brand":"Gravity","offers":[{"title":"Default Title","offer_id":45626686111814,"sku":"GBR250-4D","price":158.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71VTdQj0i1L.jpg?v=1784374970"},{"product_id":"gravity-gr300-4-4-channel-class-ab-car-amplifier","title":"Gravity GR300.4 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Gravity GR300.4 is a four-channel Class AB car audio amplifier designed to add dedicated amplification to an upgraded speaker system. It can be used for front and rear door speakers, component speakers, or other full-range drivers in a 12-volt vehicle audio system. With four amplified channels, it offers a practical route beyond factory head-unit power.\u003c\/p\u003e\u003cp\u003eThis amplifier is rated for up to 300 watts per channel at 2 ohms and up to 150 watts per channel at 4 ohms, both specified at 1% THD. Its 2-ohm stereo stability gives installers flexibility when matching compatible speakers to the amplifier. The Class AB design is intended for full-range system applications where controlled, clean output is important.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossover controls help tailor the frequency range sent to connected speakers. The high-pass filter adjusts from 80 Hz to 1.2 kHz, while the low-pass filter adjusts from 50 Hz to 250 Hz. A variable bass boost of up to +12 dB at 50 Hz provides an additional tuning option when system design calls for more low-frequency emphasis.\u003c\/p\u003e\u003cp\u003eThe GR300.4 supports line-level and speaker-level inputs, allowing it to work with many aftermarket and factory-source systems. It also supports bridgeable and tri-mode operation for compatible system layouts. An included remote level-control knob provides a convenient way to adjust the assigned bass level from the listening position.\u003c\/p\u003e\u003cp\u003eProtection circuitry helps safeguard the amplifier against overload, thermal, and short-circuit conditions. Soft-start and muting functions are designed to reduce turn-on noise, while status indicators assist with system monitoring. The compact chassis can be integrated into a variety of vehicle installations when mounted with adequate ventilation and secure wiring.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class AB Design:\u003c\/strong\u003e Powers a full front-and-rear speaker arrangement from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stereo Stability:\u003c\/strong\u003e Supports compatible 2-ohm or 4-ohm stereo speaker loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Lets installers direct appropriate frequencies to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass Boost Control:\u003c\/strong\u003e Adds up to +12 dB at 50 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Input Options:\u003c\/strong\u003e Accepts line-level and speaker-level audio signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Protection:\u003c\/strong\u003e Helps protect against overload, heat, and short circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GR300.4 uses a compact amplifier chassis with chrome-plated RCA, power, and speaker terminals. Its Class AB circuit design includes high-current dual discrete drive stages, a MOSFET PWM power supply, soft-start operation, muting, and power\/protection indicators. These features support dependable daily use when the amplifier is installed and configured correctly.\u003c\/p\u003e\u003cp\u003eUse this amplifier in a negative-ground 12-volt vehicle electrical system and mount it securely in a dry, ventilated location. Match speaker wiring to the supported 2-ohm or 4-ohm stereo loads, set crossover points for the speakers being used, and connect either line-level or speaker-level inputs as appropriate for the source unit. The package includes the amplifier, remote bass control, and user manual.\u003c\/p\u003e","brand":"Gravity","offers":[{"title":"Default Title","offer_id":45627576385606,"sku":"GR-300-4","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71oOQyJ_FJL.jpg?v=1784375436"},{"product_id":"hertz-cp-4800-4-channel-class-d-car-amplifier","title":"Hertz CP-4800 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Hertz Cento Power CP 4.800 is a compact four-channel Class D car amplifier designed to add clean, controlled power to an upgraded speaker system. It can operate in four-, three-, or two-channel configurations, giving installers flexibility for full-range speakers, an active front stage, or a front-stage-and-subwoofer arrangement. With 110 watts RMS per channel at 4 ohms, it is suited to systems that need substantially more output than a factory radio can provide.\u003c\/p\u003e\u003cp\u003eFor listeners building a detailed daily-driver system, the CP 4.800 supports a wide specified bandwidth from 10 Hz to 47 kHz at -3 dB and carries Hi-Res Audio certification with response stated to 41 kHz. Its Advanced D-Class output stage is rated at 85% efficiency, helping it deliver high output while managing space and electrical demand. The result is a versatile amplifier platform for component speakers, coaxials, or properly matched subwoofer channels.\u003c\/p\u003e\u003cp\u003eThe amplifier accepts both low-level preamp signals and high-level speaker signals, making it useful with aftermarket receivers as well as many factory audio systems. Its speaker-level input sensitivity range is 1.6 to 40 Vrms, while preamp input sensitivity is adjustable from 0.32 to 8 Vrms. Hertz also provides automatic remote turn-on capability from a compatible BTL speaker-level source.\u003c\/p\u003e\u003cp\u003eIndependent front and rear crossover controls allow each channel pair to be configured for full-range, high-pass, or low-pass use. Both front and rear sections offer adjustable high-pass and low-pass filtering from 50 to 4,000 Hz at 12 dB per octave. A 50 Hz bass boost adjustment and rear-channel subwoofer-level control add further system-tuning options.\u003c\/p\u003e\u003cp\u003eThe CP 4.800 is housed in an aluminum die-cast chassis measuring 8.07 by 6.10 by 1.89 inches, helping it fit in constrained installation locations. It includes Plug \u0026amp; Play connection cables for signal and speaker wiring, along with the required 40 A fuse. For systems needing convenient bass-level adjustment, it is compatible with the optional Hertz HRC 02 remote control when the rear low-pass filter is active.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers front and rear speakers or supports bridged system layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e760-Watt Total RMS Output:\u003c\/strong\u003e Delivers substantial power in a compact amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Res Audio Certification:\u003c\/strong\u003e Supports extended high-frequency reproduction to 41 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamp And Speaker-Level Inputs:\u003c\/strong\u003e Works with aftermarket or compatible factory audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Front And Rear Crossovers:\u003c\/strong\u003e Helps match each channel pair to its assigned speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional HRC 02 Compatibility:\u003c\/strong\u003e Enables rear-channel subwoofer level adjustment from the driver seat.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CP 4.800 uses a durable aluminum die-cast case with a compact footprint and accessible top-mounted tuning controls. Its chassis measures 205 x 155 x 48 mm, while the specified mounting footprint is 171.5 x 121.5 mm. The amplifier weighs 1.75 kg and uses one 40 A fuse.\u003c\/p\u003e\u003cp\u003eUse either the supplied preamp-input harness or speaker-input harness, not both at the same time. Mount the amplifier securely with adequate ventilation, connect it to a properly fused 12 V vehicle electrical system, and match speaker loads to its rated minimum impedance requirements. A 4 AWG power cable is specified in Hertz's installation guidance; bridged operation requires a 4-ohm load.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631721242694,"sku":"CP-4800","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61ru9ybinVL_383beb81-bf1b-40e8-824d-e46e271b710e.jpg?v=1784378747"},{"product_id":"hertz-dp-4-400-4-channel-class-ab-car-amplifier","title":"Hertz DP 4.400 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Hertz DP 4.400 is a four-channel Class AB car amplifier designed to add clean, configurable power to factory or aftermarket audio systems. It provides 75 watts RMS to each of four channels at 4 ohms, making it well suited to powering upgraded front and rear speakers. Its bridgeable design also allows it to support systems that combine stereo speakers with higher-power channels.\u003c\/p\u003e\u003cp\u003eThis amplifier is a practical option for listeners who want greater output and control than a head unit can provide without moving to a large amplifier chassis. It is stable down to 2 ohms per channel in four-channel operation and can be configured for four-, three-, or two-channel use. That flexibility supports a range of speaker layouts as a system grows.\u003c\/p\u003e\u003cp\u003eThe DP 4.400 uses a Class AB output stage with a specified 10 Hz to 45 kHz bandwidth at -3 dB, along with Hi-Res Audio certification covering 10 Hz to 50 kHz. Its 0.01% THD specification at 100 Hz and 70% rated power, 101 dBA signal-to-noise ratio, and balanced input circuitry are intended to support low-noise signal transfer. The result is an amplifier built for detailed full-range speaker amplification rather than subwoofer-only duty.\u003c\/p\u003e\u003cp\u003eInstallation options include RCA preamp inputs for aftermarket radios and speaker-level inputs for integration with many OEM systems. The built-in Universal Speaker Simulator helps maintain compatibility with source units that monitor speaker load, while ART automatic remote turn-on can activate the amplifier from compatible BTL speaker-level signals. A full-range front pre-out can also feed an additional amplifier.\u003c\/p\u003e\u003cp\u003eIndependent front and rear high-pass and low-pass filter sections allow the DP 4.400 to be tailored for full-range speakers, component systems, or mixed amplified systems. Each filter section adjusts from 50 Hz to 4,000 Hz with a 12 dB\/octave slope, and the rear section includes selectable 50 Hz bass boost. Its compact footprint, protected controls, and solid terminal arrangement make it a capable foundation for a carefully planned vehicle audio upgrade.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class AB Power:\u003c\/strong\u003e Delivers 75 watts RMS per channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Outputs:\u003c\/strong\u003e Supports 105 watts RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Design:\u003c\/strong\u003e Provides up to 210 watts RMS per bridged pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Res Audio Certified:\u003c\/strong\u003e Supports a certified 10 Hz to 50 kHz response range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM and Aftermarket Inputs:\u003c\/strong\u003e Includes RCA pre-in and speaker-level input connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e High- and low-pass filters help match speakers and system roles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe DP 4.400 uses a compact chassis with a removable top panel that protects its controls and connections. It features a status LED and machined terminal blocks for power and speaker wiring. The amplifier measures 335 x 190 x 50 mm and weighs 2.88 kg.\u003c\/p\u003e\u003cp\u003eUse RCA pre-in connections with an aftermarket head unit, or use the speaker-level inputs when retaining a compatible factory radio. Configure each channel pair with its level control and high-pass, low-pass, or full-range setting before finalizing speaker wiring. For bridged operation, use 4-ohm speaker loads and follow the terminal markings and instructions in the supplied documentation.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631728615494,"sku":"DP4-400","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71iBcWt6xrL.jpg?v=1784380326"},{"product_id":"hertz-sp4-500-4-channel-class-d-car-amplifier","title":"Hertz SP4-500 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Hertz SP4-500 is a compact four-channel car audio amplifier designed to add clean, configurable power where installation space is limited. It can operate in 4-, 3-, or 2-channel configurations, allowing it to drive a full speaker system, a front stage plus subwoofer, or bridged speakers or subwoofers. Its compact footprint makes it practical for motorcycles, under-seat vehicle installations, and behind-seat truck mounting locations.\u003c\/p\u003e\u003cp\u003eWith 90 watts RMS per channel at 4 ohms or 150 watts RMS per channel at 2 ohms, the SP4-500 is suited to aftermarket speakers that need more power and control than a factory radio can provide. Bridged operation supplies up to 300 watts RMS per pair at 4 ohms. It also supports a three-channel setup for powering two speakers and one bridged subwoofer channel.\u003c\/p\u003e\u003cp\u003eThe amplifier has a wide 10 Hz to 35 kHz bandwidth, a 100 dBA A-weighted signal-to-noise ratio, and less than 0.02% THD under its stated test conditions. Adjustable high-pass and low-pass filters on both channel pairs help tailor the signal for tweeters, full-range speakers, midbass drivers, or subwoofers. A selectable bass boost for channels 3-4 is available when their low-pass filter is engaged.\u003c\/p\u003e\u003cp\u003eHertz uses its ADC, or Advanced D-Class, output stage to provide efficient operation in a small chassis. The amplifier is rated for up to 85% efficiency and uses an IP55-rated aluminum chassis intended to help protect against humidity and external contaminants. Its sealed power, line-input, and speaker-output connections support installations exposed to vibration or changing conditions.\u003c\/p\u003e\u003cp\u003eThe SP4-500 accepts both preamp-level and speaker-level input signals, making it suitable for aftermarket receivers as well as many factory head units. Hertz USS, or Universal Speaker Simulators, is built into the high-level input section to support source units with speaker-load detection circuitry. The included wire-to-RCA adapters and selectable two- or four-channel input mode provide flexibility when integrating it into a new or existing system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Flexibility:\u003c\/strong\u003e Operates in 4-, 3-, or 2-channel configurations for multiple system layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADC Class D Output:\u003c\/strong\u003e Delivers compact, efficient amplification with up to 85% rated efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90W x 4 RMS:\u003c\/strong\u003e Supplies rated power at 4 ohms for aftermarket full-range speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Input With USS:\u003c\/strong\u003e Integrates with compatible factory radios using speaker-level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters help match channels to speaker roles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP55 Aluminum Chassis:\u003c\/strong\u003e Provides a compact enclosure designed for humid and demanding installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe SP4-500 uses an IP55-rated aluminum chassis with a compact 192.7 x 130 x 49 mm footprint. Hertz specifies sealed power-cord, line-input, and speaker-output connections to help limit oxidation at connection points. The amplifier does not use an internal cooling fan, helping avoid internal dirt accumulation.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a dry, ventilated location within its stated 0°C to 55°C operating range, allowing clearance around the chassis for airflow. Use the supplied power and speaker-output harnesses, select either preamp or speaker-level input as appropriate, and set the input mode for two- or four-channel source signals. A 30A fuse is recommended on the power-supply line, positioned close to the battery positive terminal.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631856083014,"sku":"SP4-500","price":551.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71ceIedBoRL.jpg?v=1784383902"},{"product_id":"hertz-sp4-900-4-channel-d-class-car-amplifier","title":"Hertz SP4-900 4-Channel D-Class Car Amplifier","description":"\u003cp\u003eThe Hertz SP4-900 is a compact four-channel car audio amplifier designed to add substantial, configurable power where installation space is limited. It can run four speakers, a front speaker pair with a bridged subwoofer channel, or two bridged speaker\/subwoofer loads. Its IP55-rated enclosure and sealed connections make it especially relevant for vehicles and powersports applications exposed to humidity, vibration, or dust.\u003c\/p\u003e\u003cp\u003eAt 14.4V, the SP4-900 delivers 160 watts RMS to each of four 4-ohm channels or 250 watts RMS per channel at 2 ohms. For systems needing more output from fewer channels, it can be bridged to provide 500 watts RMS x 2 at 4 ohms. This flexibility supports upgrades ranging from amplified component speakers and coaxials to a speaker-and-subwoofer arrangement.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Hertz ADC, an Advanced D-Class output stage specified for up to 85% efficiency. Its published noise, distortion, and damping specifications support a clean, controlled signal path for properly matched speakers. A fanless layout avoids an internal cooling fan, helping reduce the buildup of dirt inside the chassis.\u003c\/p\u003e\u003cp\u003eFactory-system integration is supported through both pre-level and speaker-level inputs. Hertz USS, or Universal Speakers Simulator, is built into the high-level input section to help the amplifier work with head units that monitor connected speaker loads. It also supports remote turn-on through a conventional remote input or DC sensing from compatible BTL speaker outputs.\u003c\/p\u003e\u003cp\u003eIndependent channel-pair crossover controls allow the SP4-900 to be configured for full-range, high-pass, or low-pass operation. Both channel pairs offer 50 Hz to 5 kHz filters with 12 dB-per-octave slopes, while channels 3-4 add adjustable 45 Hz bass boost when low-pass mode is selected. The compact footprint fits under-seat, behind-seat, motorcycle, and other space-conscious installations when mounted with appropriate ventilation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel D-Class Design:\u003c\/strong\u003e Supplies configurable power for speakers, subwoofers, or mixed systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e160W RMS Per Channel:\u003c\/strong\u003e Delivers rated four-channel output into 4-ohm speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Channels:\u003c\/strong\u003e Provides up to 250W RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Outputs:\u003c\/strong\u003e Produces 500W RMS x 2 into 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSS High-Level Integration:\u003c\/strong\u003e Helps maintain compatibility with speaker-load-detecting factory radios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP55 Aluminum Chassis:\u003c\/strong\u003e Adds protection against dust and water ingress.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe SP4-900 uses an aluminum IP55-rated chassis, sealed power, line-input, and speaker-output connections, plus a conformal-coated main board intended to resist harm from internal condensation. A removable aluminum control cover protects the adjustment section, and all crossover controls are grouped on one side for easier access after installation. The fanless design eliminates a cooling fan that could draw dirt into the amplifier.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a 12V negative-ground vehicle or boat electrical system, using the included power-supply and speaker-output harnesses. Select low-level input mode for pre-out signals or high-level USS mode for speaker-output signals, then choose 2-channel or 4-channel input routing as needed. Mount it in a ventilated location with clearance around the chassis, keep it out of the engine compartment, and observe the rated minimum impedance for the selected channel configuration.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631858606150,"sku":"SP4-900","price":872.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71xVI0Q34WL.jpg?v=1784383950"},{"product_id":"hertz-venezia-v4-4-channel-marine-amplifier","title":"Hertz VENEZIA V4 4-Channel Marine Amplifier","description":"\u003cp\u003eThe Hertz VENEZIA V4 is a four-channel marine amplifier designed to supply substantial power to boat and powersports audio systems. It can run four speakers in stereo, combine channels for a three-channel speaker-and-subwoofer layout, or operate as a two-channel bridged amplifier. Its 2-ohm-stable output stage helps support demanding marine speaker systems from a compact chassis.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the VENEZIA V4 delivers 160 watts RMS to each of four channels, while 2-ohm operation raises output to 290 watts RMS per channel. Bridged configurations provide up to 580 watts RMS per bridged channel at 4 ohms. This flexibility makes it suitable for multi-speaker cockpit systems, tower speakers, or a system that combines stereo speakers with a subwoofer.\u003c\/p\u003e\u003cp\u003eHertz Advanced D-Class amplification is used to combine high output with efficient operation. The amplifier is Hi-Res certified and has a stated bandwidth of 10 Hz to 42 kHz. Balanced fully differential input circuitry is designed to reject electromagnetic noise, an important consideration when audio wiring is installed alongside marine electrical equipment.\u003c\/p\u003e\u003cp\u003eThe VENEZIA V4 is engineered for marine exposure, with an epoxy-coated marine-grade circuit board and testing for UV exposure, salt fog, vibration, temperature extremes, and thermal shock. It carries an IPX2 rating when mounted vertically with its connections facing downward. A fanless convection cooling system is integrated into the cast-aluminum heat-sink chassis.\u003c\/p\u003e\u003cp\u003eSystem tuning is handled through independent A and B channel filter sections, each offering bypass, high-pass, and low-pass operation. The B-channel section also includes adjustable 50 Hz bass boost, while both channel pairs can be switched to mono for bridged use. Safe-Lock input, output, and power connections, plus automatic short-circuit, overload, and thermal protection, support a durable installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Output:\u003c\/strong\u003e Delivers 160 watts RMS x 4 at 4 ohms or 290 watts RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged-System Flexibility:\u003c\/strong\u003e Supports three-channel and two-channel bridged configurations for speakers and subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-Res Certified Bandwidth:\u003c\/strong\u003e Extends from 10 Hz to 42 kHz for wide-bandwidth playback capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Ready Electronics:\u003c\/strong\u003e Epoxy-coated circuit boards help resist corrosion in humid and salt-exposed environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent Crossover Sections:\u003c\/strong\u003e A and B channel pairs each have selectable bypass, high-pass, and low-pass filtering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Protection Circuitry:\u003c\/strong\u003e Short-circuit, overload, and thermal safeguards reset automatically after a fault condition clears.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe VENEZIA V4 uses a compact cast-aluminum chassis with an integrated heat sink and fanless convection cooling. Its marine-oriented construction includes conformal-coated circuit boards, Safe-Lock plug-and-play connections, and a polycarbonate cover over the control section. The amplifier is rated IPX2 only when installed vertically with the connections facing downward.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a solid surface with clearance for heat dissipation and use a 9 to 16 VDC electrical system. Connect a source with preamp outputs to the PRE IN connection, then select the A and B crossover modes to suit the speaker layout. For bridged operation, use only the specified 4-ohm minimum load; the optional Hertz HRC BM2 remote adjusts the BL\/BR speaker outputs when B-channel filter mode is set to low-pass.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631860932678,"sku":"VENEZIAV4","price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61ZplSIR8CL.jpg?v=1784384701"},{"product_id":"hertz-venezia-v4c-4-channel-compact-marine-amplifier","title":"Hertz Venezia V4C 4-Channel Compact Marine Amplifier","description":"\u003cp\u003eThe Hertz Venezia V4C is a compact four-channel marine amplifier for upgrading boat audio systems where installation space is limited. It can power four full-range marine speakers, or it can be configured for three- or two-channel operation with bridged outputs. Its 2-ohm-stable channels help support higher-output speaker layouts without requiring a large amplifier chassis.\u003c\/p\u003e\u003cp\u003eAt 14.4 volts, the Venezia V4C delivers 110 watts RMS per channel at 4 ohms or 190 watts RMS per channel at 2 ohms. Bridged channel pairs deliver 380 watts RMS at 4 ohms, allowing the amplifier to run a subwoofer or a dual-mono configuration. This flexibility makes it suitable for systems using marine coaxial speakers, a subwoofer, or both.\u003c\/p\u003e\u003cp\u003eHertz Advanced Class D amplification is designed for efficient power delivery and reduced heat generation. The amplifier has a specified 10 Hz to 42 kHz bandwidth and Hi-Res certification, supporting a wide audio range for detailed playback. Balanced fully differential inputs are used to help reject electromagnetic interference in electrically demanding marine installations.\u003c\/p\u003e\u003cp\u003eThe V4C is engineered for marine use, with an epoxy-coated circuit board, salt-fog testing, and IPX2 certification when mounted vertically with its connections facing downward. Its die-cast aluminum chassis uses fanless convection cooling rather than an onboard fan. Short-circuit, overload, and thermal safeguards reset automatically after protection events.\u003c\/p\u003e\u003cp\u003eFor system building, the amplifier provides independent front and rear filter sections with full-range, high-pass, and low-pass settings. A full-range front pre-out can feed an additional amplifier, while mono input options support simplified source connections. Safe-Lock plug-and-play input, output, and power connections are intended to make a secure marine installation more straightforward.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Output:\u003c\/strong\u003e Delivers 110 watts RMS x 4 at 4 ohms or 190 watts RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Provides 380 watts RMS x 2 at 4 ohms for bridged applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Ready Construction:\u003c\/strong\u003e Uses an epoxy-coated PCB and is tested for marine environmental exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX2 Installation Rating:\u003c\/strong\u003e Rated IPX2 when installed vertically with connections facing downward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Crossover Network:\u003c\/strong\u003e Front and rear channels offer full-range, high-pass, and low-pass filtering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Differential Inputs:\u003c\/strong\u003e Helps reduce noise from electromagnetic interference in the audio signal path.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Venezia V4C combines a die-cast aluminum compact chassis with a fanless convection cooling design. A polycarbonate panel protects the built-in filter controls, while the internal electronics use marine-focused corrosion protection. The amplifier weighs 2.62 kg (5.77 lb).\u003c\/p\u003e\u003cp\u003eUse the V4C with a 9 to 16 VDC electrical system and a source unit or processor with preamp outputs. It accepts 2-ohm loads in four-channel operation, while bridged operation requires 4-ohm loads. Mount it vertically with the connections facing down when using its IPX2-rated installation orientation, and configure the front and rear filters to suit full-range speakers, a bridged subwoofer, or a mixed speaker-and-subwoofer system.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631866961990,"sku":"VENEZIAV4C","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61k6nXghxYL.jpg?v=1784385042"},{"product_id":"hifonics-a1200-4d-4-channel-full-range-car-amplifier","title":"Hifonics A1200-4D 4-Channel Full-Range Car Amplifier","description":"\u003cp\u003eThe Hifonics A1200-4D is a compact four-channel car audio amplifier for upgrading factory or aftermarket speaker systems. It provides four amplified channels for full-range speakers, component sets, or a combination of speakers and a bridged subwoofer channel pair. Its flexible channel configuration helps simplify multi-speaker system builds without requiring separate amplifiers.\u003c\/p\u003e\u003cp\u003eThis amplifier is designed for listeners who want more control and output than a head unit's built-in power can provide. It can operate as a conventional four-channel amplifier or bridge its channels into two higher-output channels. That flexibility supports front-and-rear speaker upgrades, active-style system layouts, or systems that combine speakers with a compatible bridged load.\u003c\/p\u003e\u003cp\u003eHifonics rates the A1200.4D at 4 x 150 watts at 4 ohms, 4 x 300 watts at 2 ohms, or 2 x 600 watts bridged at 4 ohms. Its full-range Super D-Class design is intended to deliver amplified audio across the frequency range rather than being limited to subwoofer duty. A 10 Hz to 45 kHz frequency response supports use with a broad range of car audio speaker applications.\u003c\/p\u003e\u003cp\u003eUltra-Fi MOSFET output devices, a pulse-width-modulated power supply, and a heavy-duty aluminum alloy heat sink are central to its design. These components are paired with low-noise preamplifier circuitry and surface-mount construction. The amplifier also includes illuminated power and protection diagnostics to help monitor operating status.\u003c\/p\u003e\u003cp\u003eFor system tuning, the A1200-4D includes selectable input modes, variable crossovers, input-level adjustment, and bass EQ. High-level audio inputs and signal-sensing turn-on capability can help when integrating with many factory radios, while RCA inputs support aftermarket source units. It is a practical amplifier choice for a vehicle audio upgrade when paired with correctly impedance-matched speakers, suitable wiring, and an external fuse.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers four speakers or supports two bridged channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Range Super D-Class:\u003c\/strong\u003e Supports full-range speaker and component-system applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Input Modes:\u003c\/strong\u003e Accommodates 2-channel, 4-channel, and DUPE input configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps tailor frequency output to connected speaker types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Supports integration with compatible factory speaker-level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Diagnostics:\u003c\/strong\u003e Illuminated indicators monitor overload and speaker-short protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe A1200-4D uses a heavy-duty aluminum alloy heat sink to move heat away from its MOSFET output section. Its nickel-plated RCA connectors and nickel-plated, high-temperature, impact-resistant hex-screw terminals are designed for secure signal and wiring connections. Surface-mount technology is used within the amplifier to support resistance to vehicle shock and vibration.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a solid, dry surface with airflow around the heat sink, away from moisture and excessive heat. Use the specified 4 AWG power and ground terminals, install a properly selected external fuse near the battery, and match speaker loads to the published 2-ohm stereo or 4-ohm bridged ratings. Use RCA inputs with a conventional remote turn-on lead, or use the high-level input and signal-sense function only as directed for compatible source units.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631900745798,"sku":"A1200-4D","price":297.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71Ad8CyUi_L.jpg?v=1784385772"},{"product_id":"hifonics-a800-4d-4-channel-car-amplifier","title":"Hifonics A800.4D 4-Channel Car Amplifier","description":"\u003cp\u003eThe Hifonics A800.4D is a compact four-channel car audio amplifier designed to add dedicated power to front and rear speakers or a mixed speaker-and-subwoofer system. Its full-range Super D-Class design supports conventional multi-speaker upgrades while keeping the amplifier package relatively compact. With four amplified channels and bridgeable operation, it offers flexible options for systems that need more output and tuning control than a factory or aftermarket receiver alone can provide.\u003c\/p\u003e\u003cp\u003eRated output is 4 x 100 watts at 4 ohms or 4 x 200 watts at 2 ohms, with two bridged channels rated at 400 watts each into 4 ohms. This makes it suited to powering compatible component speakers, coaxial speakers, or a combination of speakers and properly matched bridged loads. Its 10 Hz to 45 kHz frequency response supports full-range audio applications rather than subwoofer-only use.\u003c\/p\u003e\u003cp\u003eThe A800.4D uses Hifonics Ultra-Fi MOSFET output devices and a pulse-width-modulated Twin Turbo Coil power supply. Its Full Range Super D-Class topology is engineered for efficient operation, while the aluminum alloy heat sink helps move heat away from the amplifier circuitry. Surface-mount construction is also used to help the internal electronics tolerate vehicle vibration.\u003c\/p\u003e\u003cp\u003eFor system tuning, the amplifier includes Accu-Cross electronic crossover controls, selectable operating modes, and adjustable high-pass and low-pass filtering. A variable bass EQ provides 0 to 12 dB of boost centered at 45 Hz. These controls allow an installer to direct suitable frequency ranges to connected speakers or bridged channels without relying entirely on source-unit processing.\u003c\/p\u003e\u003cp\u003eInstallation flexibility includes RCA inputs as well as speaker-level audio inputs for integration with a wider range of source units. The amplifier can be activated by a conventional remote turn-on lead or by signal sensing through its high-level inputs. It is a practical choice for a vehicle audio upgrade when paired with correctly matched speakers, appropriate wiring, and an externally fused power connection.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers up to four speakers or supports bridged channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuper D-Class Topology:\u003c\/strong\u003e Full-range amplifier design focused on efficient power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Delivers up to 2 x 400 watts at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccu-Cross Filtering:\u003c\/strong\u003e Adjustable crossover settings help match output to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Supports connection to compatible factory-style speaker outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Turn-On:\u003c\/strong\u003e Signal sensing can eliminate a remote-wire connection in compatible systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe A800.4D has a black compact chassis with a heavy-duty aluminum alloy heat sink, Ultra-Fi MOSFET output devices, and surface-mount internal construction. Nickel-plated RCA connectors and nickel-plated, high-temperature-resistant hex screw terminals are used for signal, power, ground, and speaker connections. LED diagnostic indicators monitor overload and speaker-short protection conditions.\u003c\/p\u003e\u003cp\u003eUse 4 AWG cable at the 12-volt and ground terminals, connect speakers with wire compatible with the 18 AWG speaker terminals, and install an external fuse in the amplifier power wiring. Configure the input mode and crossover settings for the speaker layout being used, and use bridged operation only with a 4-ohm bridged load. The high-level input auto-turn-on function senses a 6-volt DC offset from compatible source units; otherwise, use the remote turn-on connection.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631905562694,"sku":"A800-4D","price":245.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/610jX-gZ-cL.jpg?v=1784386284"},{"product_id":"hifonics-brl1200-4-4-channel-car-amplifier","title":"Hifonics BRL1200.4 4-Channel Car Amplifier","description":"\u003cp\u003eThe Hifonics BRL1200.4 is a four-channel car audio amplifier designed to add dedicated power to a vehicle speaker system. It delivers up to 150 watts RMS per channel at 4 ohms or 300 watts RMS per channel at 2 ohms. It is suited to systems that need an external amplifier for front and rear speakers, component sets, or a mixed full-range setup.\u003c\/p\u003e\u003cp\u003eIts four-channel layout supports conventional stereo operation as well as bridged operation for compatible higher-power channels. In bridged configuration, it is rated for 600 watts RMS per channel into 4 ohms across two channels. This flexibility allows the amplifier to be used in a speaker-focused system now and adapted as the system changes.\u003c\/p\u003e\u003cp\u003eThe BRL1200.4 uses Hifonics Super D Class amplification with a Class-D chipset, half-bridge design, and Ultra-Fi MOSFET output devices. Its design is intended to provide efficient power delivery while managing heat in compact vehicle installations. A mass-loaded extruded aluminum heat sink supports thermal management during normal operation.\u003c\/p\u003e\u003cp\u003eFor system tuning, the amplifier includes variable high-pass and low-pass crossovers with a 40 Hz to 2 kHz adjustment range. The 12 dB-per-octave electronic crossover helps direct appropriate frequencies to full-range speakers or other compatible channels. Built-in bass control and a 0.2 to 9V input sensitivity range provide additional setup flexibility.\u003c\/p\u003e\u003cp\u003eA selectable illuminated logo can operate as a constant blue light, a VU meter that follows audio level, or remain off. The VU mode can assist with visual gain adjustment during setup. Protection circuitry monitors over-voltage, under-voltage, short-circuit, overcurrent, and thermal conditions to help safeguard the amplifier and connected system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers four speakers or supports two bridged channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200-Watt RMS Total:\u003c\/strong\u003e Provides 4 x 300 watts RMS at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters adjust from 40 Hz to 2 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVU Meter Logo:\u003c\/strong\u003e Select constant blue illumination, audio-reactive mode, or off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Inputs:\u003c\/strong\u003e Supports connection to compatible factory or aftermarket source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuits:\u003c\/strong\u003e Helps monitor voltage, current, short-circuit, and thermal conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BRL1200.4 has a black chassis with a mass-loaded extruded aluminum heat sink, multi-layer PCB construction, nickel-plated RCA jacks, and secure molded connection terminals. Its angled terminal layout is intended to make cable access and wire routing more manageable. The amplifier measures 9.75 x 5.75 x 2.25 inches.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure surface with adequate airflow and use properly sized power, ground, signal, and speaker wiring. Hifonics specifies an external 80A fuse and lists 2 AWG power cable in its cable-size guide for this model. Match connected speakers to the amplifier's 2-ohm minimum unbridged load or 4-ohm minimum bridged load, then set gain and crossover controls carefully during installation.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631906021446,"sku":"BRL1200-4","price":385.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61S5XDfaPtL.jpg?v=1784386381"},{"product_id":"hifonics-brl1600-4-4-channel-car-audio-amplifier","title":"Hifonics BRL1600.4 4-Channel Car Audio Amplifier","description":"\u003cp\u003eThe Hifonics BRL1600.4 is a four-channel car audio amplifier designed to add substantial power and system flexibility to an aftermarket vehicle sound system. It can drive four speakers in stereo or operate as two bridged channels for compatible higher-power applications. This makes it suitable for users upgrading factory-amplified or head-unit-powered speakers with a dedicated external amplifier.\u003c\/p\u003e\u003cp\u003eWith rated output of 300 watts RMS per channel at 4 ohms and 450 watts RMS per channel at 2 ohms, the BRL1600.4 is intended for demanding full-range speaker systems. Its 2-ohm stereo stability gives installers options when matching speakers and wiring layouts. Two channels can also be bridged for 880 watts RMS per channel at 4 ohms.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Hifonics Super D Class architecture and a half-bridge design intended to support efficient power delivery in a compact chassis. An iron-core transformer and ultra-low-EMI design help support integration in modern vehicle electrical environments. A mass-loaded extruded aluminum heat sink assists with thermal management during extended use.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossovers each operate from 40 Hz to 2 kHz, allowing the amplifier to be tailored for full-range speakers, midbass drivers, or selected system configurations. Built-in bass control provides an additional adjustment option. The 0.2 to 9V input range supports connection with a range of compatible source-unit preamp outputs.\u003c\/p\u003e\u003cp\u003eThe BRL1600.4 includes an illuminated Hifonics logo with selectable constant-blue, VU-meter, or off modes. In VU-meter mode, the logo responds to audio level and can assist during gain adjustment. Triple protection circuitry monitors over\/under-voltage, short-circuit, overcurrent, and thermal conditions to help protect the amplifier and connected system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers four speakers in stereo or supports two bridged channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stereo Stability:\u003c\/strong\u003e Delivers 450 watts RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters adjust from 40 Hz to 2 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable VU Logo:\u003c\/strong\u003e Choose constant blue illumination, audio-reactive VU mode, or off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuper D Class Architecture:\u003c\/strong\u003e Supports efficient amplification in a compact mobile-audio design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuitry:\u003c\/strong\u003e Includes voltage, short-circuit, overcurrent, and thermal safeguards.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BRL1600.4 uses a black chassis with a mass-loaded extruded aluminum heat sink, multi-layer circuit boards, surface-mount components, nickel-plated RCA inputs, and molded connection terminals. Its terminals are angled to improve access and create a cleaner wire-routing profile. The amplifier measures 10.5 inches long, 5.75 inches wide, and 2.25 inches high.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a dry, ventilated location with room around the heat sink for airflow. Use appropriately sized power, ground, speaker, and RCA wiring, and observe the amplifier's 2-ohm minimum stereo impedance and 4-ohm minimum bridged impedance. Its external 100A fuse requirement and 2 AWG power\/ground terminals should be considered when planning the vehicle electrical installation.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631906906182,"sku":"BRL1600-4","price":475.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61IouQXSlcL.jpg?v=1784386466"},{"product_id":"hifonics-brl800-4-4-channel-car-audio-amplifier","title":"Hifonics BRL800.4 4-Channel Car Audio Amplifier","description":"\u003cp\u003eThe Hifonics BRL800.4 is a four-channel car audio amplifier designed to add dedicated power to upgraded speakers or support a mixed speaker-and-subwoofer system. It provides four amplified channels in a compact full-range format, making it suitable for vehicles where a factory or aftermarket head unit needs more output capability. Its universal vehicle fitment means installation planning is based on available mounting space and the vehicle's electrical system.\u003c\/p\u003e\u003cp\u003eRated for 125 watts RMS per channel at 4 ohms or 200 watts RMS per channel at 2 ohms, the BRL800.4 can power four speakers with substantial headroom. It can also be configured for two-channel bridged operation, producing 400 watts RMS per bridged channel at 4 ohms. This flexibility supports conventional four-speaker upgrades as well as systems that use one channel pair for speakers and another bridged pair for compatible subwoofers.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Hifonics Super D Class architecture with a Class-D chipset and half-bridge design. This approach is intended to provide efficient power delivery across its 15Hz-30kHz frequency response range. An iron-core transformer, Ultra-Fi MOSFET output devices, and an ultra-low-EMI design are part of its power and output-stage construction.\u003c\/p\u003e\u003cp\u003eBuilt-in variable high-pass and low-pass filters allow each channel pair to be tailored for the speakers connected to it. Both filters adjust from 40Hz to 2kHz at a 12dB-per-octave slope, while the built-in bass control provides additional system adjustment. The 0.2-9V input range accommodates a broad range of source-unit signal levels.\u003c\/p\u003e\u003cp\u003eThe BRL800.4 incorporates Intelligent Power Management System protection functions for over-voltage, under-voltage, short-circuit, overcurrent, and thermal conditions. Its illuminated logo can be set to constant blue lighting, VU meter operation, or off. The VU display can provide a visual indication of audio level during setup, while final gain setting should be performed with appropriate tuning practices.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers four speakers or supports stereo and bridged system layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e800 Watts RMS Total:\u003c\/strong\u003e Delivers up to 4 x 200 watts RMS at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Capability:\u003c\/strong\u003e Produces 2 x 400 watts RMS at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters help match amplifier output to speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVU Meter Logo:\u003c\/strong\u003e Select constant blue illumination, audio-reactive VU mode, or off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuitry:\u003c\/strong\u003e Helps guard against voltage, current, short-circuit, and thermal faults.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BRL800.4 uses a black chassis with a mass-loaded extruded aluminum heat sink for thermal management. Its construction includes a multilayer surface-mount PCB, iron-core transformer, Ultra-Fi MOSFET output devices, nickel-plated RCA jacks, and angled molded connection terminals. These elements are designed to keep connections accessible while maintaining a clean wiring profile.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a location with adequate airflow and avoid mounting it upside down. Use a properly fused power connection, a short and secure chassis ground, and speaker wiring that maintains a 2-ohm minimum load per unbridged channel or 4 ohms per bridged channel. The amplifier accepts RCA inputs and supports speaker-level inputs for integration with compatible factory or aftermarket source units.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631908282438,"sku":"BRL800-4","price":311.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61Ud_Q78qQL.jpg?v=1784386704"},{"product_id":"hifonics-bxx1200-4-4-channel-a-b-car-amplifier","title":"Hifonics BXX1200.4 4-Channel A\/B Car Amplifier","description":"\u003cp\u003eThe Hifonics BXX1200.4 is a four-channel Brutus Series car audio amplifier built to add dedicated power to a vehicle speaker system. It is designed for users upgrading beyond head-unit power and needing separate amplification for front and rear speakers. Its Super Class A\/B platform supports stereo operation across four channels or bridged operation across two channels.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the amplifier is rated for 150 watts RMS per channel, making it suitable for appropriately rated full-range speakers. At 2 ohms, it is rated for 300 watts RMS per channel for systems designed around lower-impedance loads. Two pairs of channels can also be bridged to provide 600 watts RMS per bridged channel at 4 ohms.\u003c\/p\u003e\u003cp\u003eThe BXX1200.4 provides adjustable filtering to help match amplifier output to the speakers being used. Its selectable full-range, high-pass, and low-pass crossover functions allow system builders to limit unwanted frequencies where appropriate. A variable bass boost and subsonic filter provide further tuning options for compatible system layouts.\u003c\/p\u003e\u003cp\u003eRCA inputs connect the amplifier to a source unit with preamp outputs, while RCA outputs support signal pass-through to additional amplification. Low-noise preamplifier circuitry and nickel-plated RCA connections are designed to support a clean signal path. A wired bass-level remote is included for accessible level adjustment.\u003c\/p\u003e\u003cp\u003eThis amplifier fits well in a multi-speaker upgrade, including four-channel door-speaker systems or mixed systems using bridged channels for compatible 4-ohm loads. Its 2-ohm stereo stability gives installers flexibility when selecting speakers and wiring configurations. Protection circuitry, status LEDs, and an aluminum alloy heat sink support monitored operation in an automotive installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Architecture:\u003c\/strong\u003e Powers four speakers in stereo or two bridged channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200W RMS Total Output:\u003c\/strong\u003e Delivers 4 x 300 watts RMS at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Capability:\u003c\/strong\u003e Provides 600 watts RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps tailor frequency output to the connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Allows convenient bass-level adjustment from the listening position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuitry:\u003c\/strong\u003e Monitors thermal, overload, and speaker-short conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BXX1200.4 uses a heavy-duty aluminum alloy heat sink to manage heat in its Super Class A\/B design. Nickel-plated RCA input connections are intended to resist corrosion, while green power and red protect LEDs provide operating-status indication. The amplifier has 4 AWG power and ground terminals, 12 AWG speaker terminals, and two onboard 35A fuses.\u003c\/p\u003e\u003cp\u003eInstall the amplifier securely in a dry, ventilated location with clearance around the heat sink. Connect it to a properly fused 12-volt vehicle electrical system, a solid chassis ground, RCA-level source output, and speakers wired within its listed impedance ratings. Use high-pass filtering for many full-range speaker installations, and use bridged channels only with a 4-ohm load.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631918571590,"sku":"BXX1200-4","price":278.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71V3x8DlxFL.jpg?v=1784387918"},{"product_id":"hifonics-bxx1600-4-4-channel-car-audio-amplifier","title":"Hifonics BXX1600.4 4-Channel Car Audio Amplifier","description":"\u003cp\u003eThe Hifonics BXX1600.4 is a four-channel car audio amplifier designed to add dedicated power to a vehicle speaker system. It can run four speakers in stereo or be configured for two bridged channels when a system calls for higher output per channel. This makes it a flexible choice for upgrading beyond the power available from a factory or aftermarket receiver.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the amplifier is rated for 200 watts RMS per channel across four channels. With compatible 2-ohm speakers, it is rated for 400 watts RMS per channel. For bridged applications, it is rated for 800 watts RMS per pair at 4 ohms.\u003c\/p\u003e\u003cp\u003eThe BXX1600.4 uses Hifonics Super A\/B Class amplification and Ultra-Fi MOSFET output devices. Its PWM MOSFET power supply incorporates T3 twin-turbo toroids to support power delivery from the vehicle electrical system. Low-noise preamplifier circuitry is included to receive low-level RCA signals from a source unit.\u003c\/p\u003e\u003cp\u003eVariable electronic crossover controls allow the amplifier to be tailored to the speakers or subwoofers connected to each channel pair. Bass EQ and a subsonic-filter function provide further setup adjustment. RCA inputs use nickel-plated jacks for corrosion resistance, while the amplifier also provides a pair of RCA outputs.\u003c\/p\u003e\u003cp\u003eThis amplifier suits systems using front and rear speakers, component speakers, or a mixed setup with bridged channels where appropriate. Its aluminum chassis is designed to help manage heat generated during operation. Proper speaker impedance, power wiring, grounding, fusing, and gain adjustment are important for a safe and reliable installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Amplification:\u003c\/strong\u003e Powers four speakers in stereo from one chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Power Rating:\u003c\/strong\u003e Delivers 4 x 400 watts RMS at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Capability:\u003c\/strong\u003e Provides 2 x 800 watts RMS at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuper A\/B Topology:\u003c\/strong\u003e Uses Hifonics Super A\/B Class amplifier architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps match amplifier output to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-Plated RCA Jacks:\u003c\/strong\u003e Provide corrosion-resistant low-level signal connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BXX1600.4 has a chrome-finished aluminum chassis with a classic Hifonics heat-sink design. It uses Ultra-Fi MOSFET output devices, a PWM MOSFET power supply, and high-temperature, impact-resistant nickel-plated connection hardware. Power and protection status indicators are fitted on the amplifier end panel.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a secure, dry surface with ventilation around the chassis. Use RCA cables from a compatible source unit, 4 AWG power and ground wiring at the amplifier terminals, and speaker wire up to 12 AWG at the speaker terminals. The amplifier uses a 70A fuse, and bridged speaker loads should be 4 ohms; do not use loads below 2 ohms per stereo channel.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631918735430,"sku":"BXX1600-4","price":278.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/81WsGfPOQuL.jpg?v=1784388046"},{"product_id":"hifonics-bxx800-4-4-channel-class-ab-car-audio-amplifier","title":"Hifonics BXX800.4 4-Channel Class AB Car Audio Amplifier","description":"\u003cp\u003eThe Hifonics BXX800.4 is a four-channel Class AB car audio amplifier designed to add dedicated power to aftermarket speakers. It can be used to drive a full set of front and rear speakers, or configured in bridged pairs for higher-output applications. Its 2-ohm stereo stability provides flexibility when matching compatible speakers.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to vehicle owners upgrading beyond head-unit power and seeking more control over speaker output. It provides 100 watts RMS per channel at 4 ohms or 200 watts RMS per channel at 2 ohms. For bridged use, it is rated at 400 watts RMS per pair into 4 ohms.\u003c\/p\u003e\u003cp\u003eThe BXX800.4 uses a Class AB output stage with a MOSFET power supply and Ultra-Fi MOSFET output devices. This architecture is paired with an aluminum heat sink to help manage heat during operation. Three-way protection circuitry and illuminated status indicators assist with monitoring overload and speaker-short conditions.\u003c\/p\u003e\u003cp\u003eSeparate crossover controls for channel pairs 1\/2 and 3\/4 allow the amplifier to be tailored to full-range speakers, component systems, or selected bridged applications. Each channel pair offers selectable high-pass, full-range, and low-pass operation. Adjustable high-pass and low-pass filters, plus bass boost, support practical system tuning.\u003c\/p\u003e\u003cp\u003eRCA inputs accommodate a compatible aftermarket receiver or other source with preamp outputs, while RCA outputs allow signal pass-through to another amplifier. A 2-channel or 4-channel input mode supports systems with either two or four input channels. This makes the BXX800.4 a practical foundation for a multi-speaker vehicle-audio upgrade.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers four speakers or two bridged channel pairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass AB Design:\u003c\/strong\u003e Uses a Class AB amplifier topology and MOSFET circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stereo Stability:\u003c\/strong\u003e Delivers up to 200 watts RMS per channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Separately tunes channels 1\/2 and 3\/4.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA Signal Connections:\u003c\/strong\u003e Includes RCA inputs and pass-through RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Monitoring:\u003c\/strong\u003e Uses protection circuitry with power and protect indicators.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe BXX800.4 has an aluminum heat sink intended to reduce heat buildup, plus molded and angled connection areas for cable access. Nickel-plated RCA jacks are used for the low-level signal connections. LED power and protect indicators are located on the amplifier for basic system-status monitoring.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a secure, dry, ventilated location and use power and ground cable up to 4 AWG at its terminals. Speaker terminals accept wire up to 12 AWG, and the amplifier uses two onboard 25A fuses. Match speakers to the rated impedance, use a 4-ohm load for bridged channel pairs, and set gain and crossover controls after all wiring is complete.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631919423558,"sku":"BXX800-4","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71qD48IAnbL.jpg?v=1784388284"},{"product_id":"hifonics-hcm-800-4d-800w-4-channel-class-d-amplifier","title":"Hifonics HCM-800.4D 800W 4-Channel Class-D Amplifier","description":"\u003cp\u003eThe Hifonics Colossus Mini HCM-800.4D is a compact four-channel car audio amplifier designed to add dedicated power where installation room is limited. It is suited to cars, motorcycles, and UTVs that need a small-footprint amplifier for front and rear speakers or a mixed stereo-and-subwoofer setup. Its full-range Class-D design supports a broad range of speaker applications.\u003c\/p\u003e\u003cp\u003eRated at 100 watts per channel at 4 ohms and 200 watts per channel at 2 ohms, the HCM-800.4D can provide substantially more output than a typical radio's built-in amplifier. It can also be bridged into two channels at 4 ohms for applications requiring more power per channel. Variable high-pass and low-pass crossovers help tailor the signal to the speakers connected.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a mass-loaded extruded aluminum heat sink to manage heat without fan cooling. Ultra-Fi MOSFET output devices and a full-range Class-D chipset support efficient operation in a compact chassis. Its published frequency response is 10Hz to 25kHz, making it suitable for full-range speaker amplification.\u003c\/p\u003e\u003cp\u003eInstallation flexibility comes from speaker-level inputs as well as nickel-plated RCA inputs. The input-level range of 0.2V to 5V accommodates many aftermarket and factory-source integration approaches. A delayed turn-on circuit is designed to reduce turn-on and turn-off noise with compatible source units.\u003c\/p\u003e\u003cp\u003eThe HCM-800.4D fits well as the speaker amplifier in a complete upgraded system, including systems that use a separate mono amplifier for subwoofers. It can run four speakers in stereo or operate in a two-channel bridged arrangement when matched to proper 4-ohm loads. A supplied bass remote provides adjustment relative to the amplifier's bass-control setting.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class-D Design:\u003c\/strong\u003e Powers four speakers efficiently from a compact amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e800-Watt Maximum Output:\u003c\/strong\u003e Delivers up to 4 x 200 watts at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Supports two-channel bridged operation with 4-ohm speaker loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps direct appropriate frequency ranges to connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- and Low-Level Inputs:\u003c\/strong\u003e Works with RCA outputs or speaker-level source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Protection Circuits:\u003c\/strong\u003e Provides over\/under-voltage, short-circuit, and thermal protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe HCM-800.4D has a black, compact chassis with a mass-loaded extruded aluminum heat sink and CNC-machined aluminum Hifonics and Colossus badging. Its multi-layer PCB and surface-mount construction reduce component count, while molded angled power, ground, and speaker terminals support a cleaner wiring profile. The amplifier does not use fan cooling.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a location with adequate ventilation and use the recommended cable and fuse provisions. Hifonics specifies 4 AWG power and ground terminals, 12 AWG speaker terminals, and an external 80A fuse for this model. Use RCA or speaker-level input as appropriate, configure the crossover for the connected speakers, and do not bridge the amplifier below a 4-ohm load.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631922634822,"sku":"HCM800-4D","price":292.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/615bbAFrxLL.jpg?v=1784389360"},{"product_id":"hifonics-zd-1350-4d-4-channel-class-d-car-amplifier","title":"Hifonics ZD-1350.4D 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Hifonics ZD-1350.4D is a compact four-channel Class D mobile amplifier designed to add external amplification to a vehicle audio system. It can be used to power front and rear speakers independently or configured for two bridged channels with compatible 4-ohm loads. Its full-range design makes it a practical option for multi-speaker upgrades where an aftermarket or factory source unit needs more output capability.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for listeners building a clearer, more controlled speaker system without using a large chassis amplifier. It provides manufacturer-rated output of 170 watts per channel at 4 ohms or 335 watts per channel at 2 ohms. For bridged applications, it is rated for 675 watts per channel across two channels at 4 ohms.\u003c\/p\u003e\u003cp\u003eAdjustable high-pass and low-pass crossovers allow the ZD-1350.4D to be matched to the role of the speakers it powers. The crossover ranges from 50 Hz to 250 Hz with a 12 dB-per-octave slope, helping separate bass and higher-frequency duties in a system. A built-in bass control is also provided for output adjustment.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a PWM MOSFET power supply with a Simpatico coil design to maintain operating voltage through the output stage. Its Class D topology and aluminum heat sink support efficient operation in a compact enclosure. A low-noise preamplifier circuit is designed to accept low-level source signals with minimal distortion.\u003c\/p\u003e\u003cp\u003eFor installation flexibility, the ZD-1350.4D supports four-channel, full-range, and bridged operation modes. DC Signal Sense can turn the amplifier on when a signal is received at the RCA inputs, eliminating the need for a remote turn-on wire when that setup is appropriate. LED diagnostics provide illuminated indication for overload and speaker-short protection conditions.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers four speakers independently or supports two bridged channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Operation:\u003c\/strong\u003e Delivers up to 335 watts per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps tailor frequency ranges for speakers or subwoofer applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Can activate the amplifier from a detected RCA input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePWM MOSFET Power Supply:\u003c\/strong\u003e Supports stable power delivery through the amplifier circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Provides visible overload and speaker-short status indication.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ZD-1350.4D has a black compact chassis with an aluminum heat sink for heat dissipation. Its RCA inputs are nickel-plated and specified as high-temperature, impact-resistant, and erosion-resistant. Secure molded terminals are angled for access and organized power, ground, and speaker wiring.\u003c\/p\u003e\u003cp\u003eUse 4 AWG cable at the power and ground terminals, a properly fused direct battery connection, and a secure bare-metal chassis ground. The amplifier uses an external 60A fuse and accepts up to 12 AWG speaker wire at its speaker terminals. Select four 2-ohm-or-higher speaker loads for individual channels, or use 4-ohm loads when bridging channels; install in a secure location with adequate ventilation.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631938363462,"sku":"ZD-1350-4D","price":321.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71cSYI7YY7L.jpg?v=1784390176"},{"product_id":"hifonics-zd-750-4d-4-channel-class-d-car-amplifier","title":"Hifonics ZD-750.4D 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Hifonics ZD-750.4D is a compact four-channel Class D car amplifier designed to add dedicated power to a vehicle audio system. It can drive front and rear speakers in a conventional four-channel setup or be configured for bridged operation with compatible 4-ohm loads. Its compact chassis helps make it a practical option where amplifier mounting space is limited.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to listeners upgrading from head-unit power and seeking more output for component speakers, coaxials, or a mixed speaker-and-subwoofer system. It delivers 100 watts per channel at 4 ohms or 175 watts per channel at 2 ohms. For two-channel bridged applications, it is rated at 375 watts per channel into 4 ohms.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass filters let installers direct appropriate frequencies to speakers or subwoofers. The crossover ranges from 50 Hz to 250 Hz with a 12 dB-per-octave slope. A built-in bass control provides an additional low-frequency adjustment option.\u003c\/p\u003e\u003cp\u003eThe ZD-750.4D uses a PWM MOSFET power supply and Class D topology for efficient power delivery in a relatively small enclosure. A low-noise preamplifier circuit, nickel-plated RCA inputs, and a 0.2 to 6V input-sensitivity range support integration with a broad range of source units. Its aluminum heat sink is designed to dissipate heat during normal operation.\u003c\/p\u003e\u003cp\u003eFor installation flexibility, the amplifier supports speaker-level audio inputs and RCA connections. DC Signal Sense can switch the amplifier on when a signal is received at the RCA inputs, eliminating the need for a remote turn-on wire in applicable systems. Protection indicators monitor overload and speaker-short conditions, helping provide at-a-glance system status.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers front and rear speakers or supports bridged two-channel operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossover:\u003c\/strong\u003e Helps match frequency output to full-range speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePWM MOSFET Power Supply:\u003c\/strong\u003e Provides stable power delivery with efficient Class D operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Can turn the amplifier on from an RCA input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Inputs:\u003c\/strong\u003e Supports connection in systems without dedicated RCA preamp outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Indicates overload and speaker-short protection status at the amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ZD-750.4D has a black aluminum heat-sink chassis, nickel-plated high-temperature RCA inputs, and molded terminals for power, ground, and speaker wiring. Angled connection terminals are intended to improve access and help maintain a cleaner wiring path. The amplifier measures 10.82 inches long, 6.89 inches wide, and 3.15 inches high.\u003c\/p\u003e\u003cp\u003eUse 4 AWG cable at the 12V and ground terminals, install the specified external 60A fuse, and use up to 12 AWG speaker wire at the speaker terminals. Match each full-range channel to a 2-ohm or higher speaker load, or use 4-ohm loads when bridging channels. Set the input sensitivity and crossover controls during installation to suit the source unit, speakers, and intended system configuration.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631947866182,"sku":"ZD-750-4D","price":205.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61L4sqlrKJL.jpg?v=1784390388"},{"product_id":"hifonics-zg-1200-4-4-channel-class-ab-car-amplifier","title":"Hifonics ZG-1200-4 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Hifonics ZG-1200.4 is a four-channel Class A\/B car amplifier built to add dedicated power to an upgraded vehicle audio system. It can drive front and rear speakers from four channels or support bridged channel pairs where a system calls for higher output. This makes it a practical choice for listeners replacing low-power factory amplification or building a multi-speaker system around an aftermarket source unit.\u003c\/p\u003e\u003cp\u003eRated output is 150 watts RMS per channel at 4 ohms and 300 watts RMS per channel at 2 ohms. For systems using bridgeable channel pairs, it is rated at 600 watts RMS x 2 at 4 ohms. Its 10 Hz to 22 kHz frequency response supports full-range speaker applications as well as filtered subwoofer-duty channel pairs.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a Class A\/B architecture with a PWM MOSFET power supply. An aluminum heat sink helps dissipate heat, while the integrated electronic crossover lets the installer direct appropriate frequencies to connected speakers. Variable high-pass and low-pass filtering provide useful control when combining component speakers, coaxials, or subwoofers in one installation.\u003c\/p\u003e\u003cp\u003eSignal integration is flexible for many aftermarket and factory-radio upgrade paths. The ZG-1200.4 provides RCA inputs, speaker-level inputs, and a 2-channel or 4-channel input-mode selection. Its 0.2 to 6V input-sensitivity range allows the gain structure to be matched to the source unit rather than used as a volume control.\u003c\/p\u003e\u003cp\u003eThis amplifier fits well in a system that needs one chassis to power four speakers, or two speakers plus a bridged subwoofer channel pair. A selectable full-range, high-pass, or low-pass crossover arrangement helps tailor the output to the connected drivers. Proper impedance matching, secure power wiring, ventilation, and careful gain setup are important for reliable operation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers up to four speaker channels from one amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Outputs:\u003c\/strong\u003e Supports two bridged 4-ohm channel-pair outputs when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A\/B Amplification:\u003c\/strong\u003e Delivers full-range amplification for speaker-system upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e High-pass and low-pass filters help match output to drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Signal Inputs:\u003c\/strong\u003e Includes RCA and speaker-level input options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Heat Sink:\u003c\/strong\u003e Helps manage heat during installed operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ZG-1200.4 uses an aluminum heat sink, angled molded connection terminals, and nickel-plated RCA input connections. Its PWM MOSFET power supply is designed to provide stable amplifier power, while onboard LED protection diagnostics monitor overload and speaker-short conditions. The amplifier measures approximately 14.25 inches long, 8.25 inches wide, and 2.375 inches high.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a secure, dry surface with sufficient airflow and keep it away from moisture. Use 4 AWG power and ground connections, a 50A fuse, and 12 AWG speaker wiring at the amplifier terminals; the main power cable should be fused within 18 inches of the battery. Disconnect the vehicle battery before installation, set gain low before initial setup, and use 4-ohm loads for bridged operation.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631954092102,"sku":"ZG-1200-4","price":253.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51QfslKLfSL.jpg?v=1784390541"},{"product_id":"hifonics-zg-600-4-zeus-gamma-4-channel-car-amplifier","title":"Hifonics ZG-600-4 Zeus Gamma 4-Channel Car Amplifier","description":"\u003cp\u003eThe Hifonics ZG-600.4 Zeus Gamma is a four-channel Class A\/B car amplifier designed to add dedicated power to an aftermarket speaker system. It supplies four channels for front and rear speakers, making it suited to drivers who want more output and control than a head unit can provide. Its full-range, bridgeable configuration also supports flexible system planning.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the amplifier is rated at 75 watts per channel across four channels. It is also rated for 150 watts per channel at 2 ohms, allowing it to match many aftermarket speaker configurations. For systems that need fewer, more powerful channels, it can be bridged to provide 300 watts across two 4-ohm channels.\u003c\/p\u003e\u003cp\u003eThe ZG-600.4 covers a 10 Hz to 22 kHz frequency response, supporting both low-frequency extension and high-frequency detail within a full-range system. Variable high-pass and low-pass crossovers help direct the appropriate frequency range to connected speakers. A built-in bass control and adjustable bass boost provide additional low-frequency tuning options.\u003c\/p\u003e\u003cp\u003eIts Class A\/B amplifier design is paired with a PWM MOSFET power supply for stable power conversion. The amplifier uses an aluminum heat sink to help manage operating heat during use. Nickel-plated RCA inputs, speaker-level inputs, and angled terminals support common aftermarket integration methods.\u003c\/p\u003e\u003cp\u003eThis amplifier can serve as the foundation of a four-speaker upgrade or as a two-channel bridged amplifier for compatible 4-ohm loads. Use it with a properly matched vehicle electrical installation, fused power wiring, and speakers that can handle its rated output. Its crossover controls make it practical for running full-range speakers, component systems, or selected bridged applications.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75W x 4 at 4 Ohms:\u003c\/strong\u003e Provides rated four-channel output for compatible speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Capability:\u003c\/strong\u003e Delivers up to 150 watts per channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Configures as two 300-watt channels at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps tailor high-pass or low-pass frequency routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Inputs:\u003c\/strong\u003e Supports integration with compatible factory audio systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ZG-600.4 uses an aluminum heat sink, PWM MOSFET power supply, nickel-plated RCA inputs, and angled connection terminals. Its Class A\/B design is intended for four-channel, full-range car-audio operation. The compact chassis measures 10.25 inches long, 8.25 inches wide, and 2.375 inches high.\u003c\/p\u003e\u003cp\u003eMount the amplifier to a secure location with adequate ventilation and keep power, signal, and speaker wiring properly routed. Use 4 AWG power and ground connections, a 40A fuse, and up to 12 AWG speaker wire as specified. Set gain and crossover controls to suit the connected speakers, and use only 4-ohm loads when bridging channels.\u003c\/p\u003e","brand":"Hifonics","offers":[{"title":"Default Title","offer_id":45631958483014,"sku":"ZG-600-4","price":184.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/515pLaEfLlL.jpg?v=1784390669"},{"product_id":"infinity-reference-3004a-4-channel-car-amplifier","title":"Infinity Reference 3004A 4-Channel Car Amplifier","description":"\u003cp\u003eThe Infinity Reference 3004A is a four-channel car amplifier designed to add clean, controllable power to front and rear speakers. It is suited to drivers upgrading factory-powered speakers or building an aftermarket system that needs more output and tuning flexibility. With four independently amplified channels, it can support a conventional full-range speaker layout or be configured for a bridged two-channel application.\u003c\/p\u003e\u003cp\u003eRated at 75 watts RMS per channel into 4 ohms, the Reference 3004A provides substantially more continuous power than most factory radios. It can also deliver 100 watts RMS per channel at 2 ohms, giving installers flexibility when matching compatible speakers. For two-channel installations, it supports bridged operation at 4 ohms with 200 watts RMS per channel.\u003c\/p\u003e\u003cp\u003eThe amplifier uses a Class H design intended to provide strong output while managing current draw. Balanced Differential Inputs are used to help reduce noise and distortion, including susceptibility to radiated engine noise. This makes the amplifier a practical choice for installations where clean signal routing and low background noise are important.\u003c\/p\u003e\u003cp\u003eBoth speaker-level and preamp-level inputs allow the Reference 3004A to work with factory radios as well as aftermarket head units. Its input level control accommodates the different signal voltages associated with those connection types. Full-range preamp outputs also make it easier to add another amplifier without relying on splitters.\u003c\/p\u003e\u003cp\u003eSeparate variable high-pass and low-pass crossover controls on the front and rear channels help tailor the amplifier to full-range speakers or subwoofers. Built-in protection circuitry monitors for short circuits, overheating, overvoltage, and undervoltage conditions. The compact chassis is designed for installations where available mounting space is limited.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75W RMS Per Channel:\u003c\/strong\u003e Delivers continuous power at 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Operation:\u003c\/strong\u003e Provides 100W RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps match output to speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports factory and aftermarket source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Differential Inputs:\u003c\/strong\u003e Helps reduce noise in vehicle installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Reference 3004A uses a compact black amplifier chassis measuring 12-5\/8 inches wide, 2-3\/16 inches high, and 7-1\/8 inches deep. Its control set includes input-level adjustment, variable crossover settings, and selectable turn-on mode. Status LEDs provide indication when protection conditions are present.\u003c\/p\u003e\u003cp\u003eUse 8-gauge power and ground wiring as recommended, and protect the power connection appropriately during installation. The amplifier accepts speaker-level signals through the included bare-wire-to-RCA adapters or low-level preamp signals through RCA connections. Use the front and rear crossover settings to high-pass door speakers, low-pass compatible subwoofers, or run full-range channels as the system requires.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45631991513158,"sku":"AMPRF10001AAM","price":428.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61CgY74iiHL.jpg?v=1784391467"},{"product_id":"infinity-reference-3004a-4-channel-car-amplifier-1","title":"Infinity Reference 3004A 4-Channel Car Amplifier","description":"\u003cp\u003eThe Infinity Reference 3004A is a four-channel car amplifier designed to add dedicated power to front and rear speakers in an aftermarket or factory-integrated audio system. It delivers 75 watts RMS to each of four channels at 4 ohms, giving compatible speakers more headroom than a typical built-in radio amplifier. Its compact footprint helps make an amplified speaker upgrade practical where mounting space is limited.\u003c\/p\u003e\u003cp\u003eThis amplifier suits listeners building a clearer, more controlled full-range speaker system without replacing every source component at once. It accepts both low-level preamp signals and speaker-level signals, supporting use with many aftermarket receivers as well as factory radios. Separate front and rear input controls help match the amplifier to the source signal.\u003c\/p\u003e\u003cp\u003eWith 100 watts RMS per channel at 2 ohms, the Reference 3004A can support compatible low-impedance speaker loads. It can also operate in bridged two-channel mode, producing 200 watts RMS per channel into 4-ohm loads. This flexibility supports a staged system build, such as powering a pair of speakers or compatible subwoofers before expanding the system later.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass filters are provided for both the front and rear channel pairs. The filters adjust from 32 to 320 Hz at a 12 dB-per-octave slope, allowing the amplifier to be configured for full-range speakers or appropriate low-frequency duties. Balanced differential inputs are designed to reduce noise and distortion and help resist radiated engine noise.\u003c\/p\u003e\u003cp\u003eThe Reference 3004A includes full-range preamp outputs for passing signal to an additional amplifier without using splitters. Selectable DC or remote turn-on operation provides options for high-level and low-level installations. Protection circuitry monitors for shorts, overheating, overvoltage, and undervoltage, with an LED indicator to show a protection condition.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Power:\u003c\/strong\u003e Delivers 75 watts RMS to each channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable Operation:\u003c\/strong\u003e Provides 100 watts RMS per channel into compatible 2-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Runs as two channels at 200 watts RMS each into 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Front and rear high-pass or low-pass filters support system tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Inputs:\u003c\/strong\u003e Accepts low-level preamp and speaker-level source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuitry:\u003c\/strong\u003e Helps guard against shorts, heat, and voltage-related faults.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Reference 3004A uses a compact amplifier chassis measuring 12-5\/8 inches wide, 2-3\/16 inches high, and 7-1\/8 inches deep. Its control layout includes separate front and rear gain and crossover adjustments, while the top panel can be removed to access controls. The design also includes power and protection status indication for system monitoring.\u003c\/p\u003e\u003cp\u003eUse 8-gauge power and ground wiring as recommended by Infinity, and mount the amplifier where airflow is not blocked. Select low-level input operation with a receiver's RCA preamp outputs, or use the supplied bare-wire-to-RCA adapters for a speaker-level connection. Configure the front and rear filter modes and frequencies for the speakers or bridged 4-ohm loads being powered; power wiring and installation hardware are not included.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45631992397894,"sku":"AMPRF3004AAM","price":386.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61CgY74iiHL_9e9901ea-0b50-4115-83af-f5276a30e007.jpg?v=1784391516"},{"product_id":"infinity-infdsp4425am-4-channel-dsp-amplifier","title":"Infinity INFDSP4425AM 4-Channel DSP Amplifier","description":"\u003cp\u003eThe Infinity INFDSP4425AM is a compact 4-channel Class A\/B car amplifier with integrated digital signal processing. It is designed for upgrading factory or aftermarket systems where speaker power, signal control, and tuning flexibility are needed in one chassis. Four powered channels and two full-range preamp outputs support a complete front\/rear speaker upgrade and future system expansion.\u003c\/p\u003e\u003cp\u003eThis amplifier suits listeners and installers who want to improve the balance and integration of an existing car audio system without adding a separate DSP processor. Its 25 watts RMS per channel at 4 ohms is intended for efficient full-range speakers, while the DSP provides the adjustment tools needed to tailor the system to the vehicle. The result is a more controlled presentation with channel-by-channel setup capability.\u003c\/p\u003e\u003cp\u003eIts onboard DSP is accessed through Infinity software on a Windows PC using the included USB tuning cable. The software provides crossover adjustment, time delay, channel gain, phase control, input mixing and summing, clipping indication, and selectable 31-band parametric or graphic EQ. Up to 10 tuning presets can be stored in the amplifier.\u003c\/p\u003e\u003cp\u003eBalanced differential inputs help reject unwanted noise, and the amplifier accepts either RCA low-level or speaker-level input signals. This makes it practical for systems retaining a factory radio as well as installations using an aftermarket source unit. Selectable remote, audio-sense, and DC-offset turn-on modes add flexibility when connecting to different vehicle audio systems.\u003c\/p\u003e\u003cp\u003eThe INFDSP4425AM can also serve as the control center for a larger build. Its two full-range preamp outputs can feed a separate amplifier when more output power is needed later. An optional Infinity RBC wired remote can adjust the level assigned to channels 5 and 6 of the DSP preamp output section from the driver’s seat.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class A\/B Power:\u003c\/strong\u003e Delivers 25 watts RMS per channel at 4 ohms for full-range speaker systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated DSP:\u003c\/strong\u003e Provides crossover, EQ, time-delay, phase, gain, and mixer controls through Windows software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-Band EQ Modes:\u003c\/strong\u003e Choose parametric or graphic equalization for channel-specific sound tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Signal Inputs:\u003c\/strong\u003e Accepts RCA low-level and speaker-level source signals for broad system compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo Preamp Outputs:\u003c\/strong\u003e Sends a full-range signal to an additional amplifier for later system expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Turn-On Modes:\u003c\/strong\u003e Supports remote, audio-signal-sense, and DC-offset activation methods.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe amplifier uses a compact curved-body design with angular end caps and Infinity branding. Its conformal-coated circuit board is intended to help protect the electronics in demanding mobile-audio environments. Red and green status indicators provide power and protection status at a glance.\u003c\/p\u003e\u003cp\u003eMount the amplifier where airflow is available and where wiring will not interfere with vehicle controls, fuel lines, brake lines, or factory harnesses. Use at least 8 AWG power and ground wire, a properly fused power connection, and the included harnesses for signal and speaker wiring. The four powered speaker channels cannot be bridged; use the RCA preamp outputs to add a separate amplifier when additional power is required.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632003964998,"sku":"INFDSP4425AM","price":277.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61LnRwn2OML.jpg?v=1784391704"},{"product_id":"infinity-marine-m3004a-4-channel-marine-amplifier","title":"Infinity Marine M3004A 4-Channel Marine Amplifier","description":"\u003cp\u003eThe Infinity Marine M3004A is a four-channel marine amplifier designed to add dedicated power to a boat audio system. It can drive four full-range speakers, or it can be configured for bridged operation when a system needs more power for fewer channels. It is intended for marine stereo upgrades where head-unit power alone is not enough for clear playback at higher listening levels.\u003c\/p\u003e\u003cp\u003eWith 75 watts RMS per channel at 4 ohms and 100 watts RMS per channel at 2 ohms at 14.4V, the Marine M3004A provides flexible power for compatible marine speakers. Its four-channel layout supports front and rear speaker zones, while bridged operation supports two 4-ohm loads. This makes it useful for systems ranging from a straightforward four-speaker setup to a mixed speaker-and-subwoofer configuration.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Class H amplifier technology to provide substantial output while managing current draw. Balanced differential inputs are designed to help reduce noise and distortion, including noise that can be introduced by an engine or electrical system. Variable high-pass and low-pass crossovers let the installer tailor the frequency range sent to the front and rear channels.\u003c\/p\u003e\u003cp\u003eIntegration options include both low-level preamp inputs and high-level speaker inputs, allowing the amplifier to work with aftermarket or factory marine stereos. Adjustable input sensitivity accommodates a range of source-unit output levels. Full-range preamp outputs also allow an additional amplifier to be added without relying on RCA splitters.\u003c\/p\u003e\u003cp\u003eThe Marine M3004A is built for practical system expansion and protected operation. Its onboard circuitry monitors for short circuits, excessive temperature, overvoltage, and undervoltage conditions, with a power\/protect indicator to help identify an operating fault. For boat owners planning a cleaner, more capable multi-speaker system, it provides channel flexibility, crossover control, and expansion capability in one compact amplifier.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers four speakers or supports bridged two-channel operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass H Amplification:\u003c\/strong\u003e Delivers strong output with managed current draw.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Differential Inputs:\u003c\/strong\u003e Helps resist induced engine and electrical-system noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e High-pass and low-pass filtering supports system tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Connects to factory or aftermarket marine stereos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuitry:\u003c\/strong\u003e Monitors shorts, temperature, overvoltage, and undervoltage conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Marine M3004A uses a compact amplifier footprint measuring 12-5\/8 inches wide, 2-3\/16 inches high, and 7-1\/8 inches deep. Its control layout includes separate front and rear gain and crossover adjustments, along with front\/rear input connections and full-range preamp outputs. A removable panel cover and included mounting screws support a tidy installed appearance.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a secure location with adequate airflow and clearance on both sides of the mounting surface. Infinity recommends 8-gauge power and ground leads; wiring and installation hardware are not included. Connect it through either low-level RCA signals or the supplied bare-wire-to-RCA adapters for speaker-level input, then set gain and crossover controls to suit the connected speakers and system layout.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632007209030,"sku":"INFM3004AAM","price":404.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61u78ZyR_oL.jpg?v=1784391746"},{"product_id":"infinity-infprimus90041aam-4-channel-class-d-car-amplifier","title":"Infinity INFPRIMUS90041AAM 4-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Infinity Primus 90041A is a compact four-channel Class D car amplifier designed to add dedicated power to a vehicle audio system. It can drive front and rear speakers from four channels or be bridged for a two-channel setup. With 90 watts RMS per channel at 4 ohms, it is suited to replacing head-unit power with a more capable amplified speaker system.\u003c\/p\u003e\u003cp\u003eThis amplifier is a practical fit for listeners upgrading factory or aftermarket speakers who want more output and tuning control without relying on a large amplifier chassis. Its high-level and low-level input sensitivity ranges support integration with a broad range of source units. OEM load-detect compatibility further supports use with factory radio systems that require a speaker load.\u003c\/p\u003e\u003cp\u003eAt 4 ohms, the Primus 90041A delivers 90 watts RMS to each of four channels; at 2 ohms, it delivers 130 watts RMS per channel. For systems that need more power on fewer channels, it can be bridged to provide 260 watts RMS x 2 at 4 ohms. The full-range frequency response is rated from 20Hz to 20kHz, ±1dB.\u003c\/p\u003e\u003cp\u003eSystem tuning is handled with selectable high-pass, low-pass, and full-range crossover modes for each channel pair. The variable crossover range spans 32Hz to 320Hz with a 12dB-per-octave slope. A variable bass EQ centered at 45Hz provides 0 to 12dB of adjustment when system tuning calls for added low-frequency emphasis.\u003c\/p\u003e\u003cp\u003eThe Primus 90041A is built for modern vehicle installations, including vehicles with start\/stop systems. Its compact footprint helps provide more mounting flexibility in confined vehicle spaces. Integrated DCP, OVP, UVP, OCP, and OTP protection circuits are designed to help safeguard the amplifier during abnormal operating conditions.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Supplies dedicated power for a front-and-rear speaker system or a bridged two-channel configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90W RMS Per Channel:\u003c\/strong\u003e Delivers rated full-range power into four 4-ohm speaker channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Output:\u003c\/strong\u003e Combines channel pairs for 260W RMS x 2 at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Lets you set high-pass or low-pass filtering from 32Hz to 320Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports connection to compatible factory or aftermarket audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Protection Circuitry:\u003c\/strong\u003e Monitors for DC, voltage, current, and temperature-related fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Primus 90041A has a compact black amplifier body with a smooth curved profile, angular end-cap styling, and an Infinity logo treatment. Its Class D architecture supports a compact installation-oriented form factor. On-board adjustment controls provide access to input gain, crossover selection, crossover frequency, and bass EQ settings.\u003c\/p\u003e\u003cp\u003eUse this amplifier with compatible 2-ohm or 4-ohm speaker loads, observing the 4-ohm minimum requirement when bridging channel pairs. High-level input cables are included for compatible speaker-level connections, while low-level input sensitivity supports compatible preamp-level sources. Professional installation is recommended for power, ground, speaker, signal, and fuse wiring, as well as gain and crossover setup.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632013107270,"sku":"INFPRIMUS90041AAM","price":267.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71fXQA2EiZL.jpg?v=1784391892"},{"product_id":"infinity-kappa-5004a-4-channel-powersports-amplifier","title":"Infinity Kappa 5004A 4-Channel Powersports Amplifier","description":"\u003cp\u003eThe Infinity Kappa 5004A is a compact four-channel Class D amplifier designed for powersports, marine, and other mobile-audio installations where space is limited. It provides dedicated amplification for up to four full-range speakers, helping an upgraded speaker system play with more headroom than a source unit alone can provide. Its compact form factor is intended for installations where a conventional amplifier may be difficult to mount.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to riders and vehicle owners building a multi-speaker system, replacing an underpowered factory setup, or adding amplified front and rear channels. It delivers 75 watts RMS to each of four channels at 4 ohms, with increased output available at 2 ohms. Two pairs of channels can also be bridged for systems that require higher power to fewer compatible speakers.\u003c\/p\u003e\u003cp\u003eThe KP5004 is built around Class D amplification, a practical choice for efficient output in electrically demanding mobile environments. Its full-range frequency response covers 20Hz to 20kHz, allowing it to support speaker-focused systems across the audible range. Adjustable input level controls help match the amplifier to the connected source.\u003c\/p\u003e\u003cp\u003eSelectable crossover controls make the amplifier adaptable to different system layouts. The front channels offer off or high-pass filtering, while the rear channels can be set to off, high-pass, or low-pass operation. Crossover points of 60Hz, 80Hz, and 120Hz help direct bass away from smaller speakers or configure the rear channels for a subwoofer application.\u003c\/p\u003e\u003cp\u003eAn aluminum chassis and conformal-coated circuit board support use in harsh outdoor-oriented installations. Both speaker-level and low-level inputs are provided, allowing integration with a range of factory and aftermarket audio sources. The amplifier can serve as the foundation for a four-speaker upgrade or as part of a mixed speaker-and-subwoofer system when wired and configured within its rated limits.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Power:\u003c\/strong\u003e Supplies 75W RMS x 4 at 4 ohms for amplified multi-speaker systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Capability:\u003c\/strong\u003e Delivers up to 125W RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Configures as two 250W RMS bridged channels at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Helps tailor bass filtering for speakers or subwoofer channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports connection to factory or aftermarket audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal-Coated PCB:\u003c\/strong\u003e Adds protection suited to demanding powersports environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Kappa 5004A uses an ultra-compact aluminum chassis with a curved body, angular end caps, and inset brushed-aluminum Infinity branding. Its circuit board is conformal-coated, and the package includes cover plates plus stainless steel mounting hardware for a clean, durable installation. Power and protect indicators assist with basic operating-status checks after installation.\u003c\/p\u003e\u003cp\u003eUse 10 AWG power and ground wiring as recommended, and install the battery-side fuse and fuse holder within 18 inches of the battery. The amplifier accepts high-level or line-level signal inputs and supports 12V or DC-offset turn-on modes. Set the gain conservatively, select the appropriate crossover mode for the speakers being powered, and confirm that all speaker loads and bridged wiring arrangements remain within the amplifier's rated configurations.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632014647366,"sku":"INFPWSKP5004AAM","price":399.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61GCMB9-VRL.jpg?v=1784391936"},{"product_id":"jbl-club-a754-4-channel-car-amplifier","title":"JBL Club A754 4-Channel Car Amplifier","description":"\u003cp\u003eThe JBL Club A754 is a compact four-channel car amplifier designed to add dedicated power to front and rear speakers. It delivers 75 watts RMS to each channel at 4 ohms, giving compatible aftermarket speakers more usable power than a typical factory radio. It is suited to vehicle owners building a balanced speaker upgrade or expanding an existing car audio system.\u003c\/p\u003e\u003cp\u003eIts four-channel layout supports several system approaches. Use all four channels for front and rear full-range speakers, bridge the amplifier for two higher-power channels, or configure a three-channel setup for a pair of speakers and a subwoofer. This flexibility helps the amplifier serve as a foundation for systems that may be expanded over time.\u003c\/p\u003e\u003cp\u003eThe Club A754 uses a Class H amplifier design and Balanced Differential Inputs. JBL specifies this input design to help reduce noise and distortion at higher output levels while improving resistance to line-induced engine noise. Separate variable high-pass and low-pass crossovers for the front and rear channels provide useful control when matching the amplifier to speaker placement and system goals.\u003c\/p\u003e\u003cp\u003eFactory-radio integration is supported through speaker-level inputs, while low-level inputs accommodate aftermarket receivers with preamp outputs. Input level controls cover both connection types, allowing the amplifier to be set up for a range of source-unit signal voltages. Full-range preamp outputs also make it possible to pass signal to an additional amplifier without using splitters.\u003c\/p\u003e\u003cp\u003eThe low-profile chassis measures 12-5\/8 inches wide, 2-1\/16 inches high, and 7-1\/8 inches deep, making it practical for installations where amplifier space is limited. On-board protection circuitry monitors for shorts, high temperature, overvoltage, and undervoltage conditions. A status LED indicates when a protection condition is present.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Output:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75W RMS Per Channel:\u003c\/strong\u003e Delivers rated power at 4-ohm loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Supports two-channel or three-channel system layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps tailor frequency range for installed speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Works with factory or aftermarket source units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Range Preamp Outputs:\u003c\/strong\u003e Allows signal pass-through to another amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Club A754 uses a low-profile chassis with a compact overall footprint for vehicle installations with limited mounting space. JBL identifies the design as a Class H amplifier platform and provides a removable trim piece for access to the connector and control panel. The manufacturer does not specify the chassis material in its published product specifications.\u003c\/p\u003e\u003cp\u003eFor installation, JBL recommends 8-gauge power and ground leads; wiring and installation hardware beyond the included mounting screws are not supplied. The amplifier accepts speaker-level and low-level signal inputs, with bare-wire-to-RCA adapters included for speaker-level connections. Set the front and rear crossover controls and input levels to suit the connected speakers, source unit, and selected four-, three-, or two-channel configuration.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":45632104235078,"sku":"AMPCBA754AM","price":386.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51KPhd4XkgL.jpg?v=1784394217"},{"product_id":"jbl-marine-a1504-4-channel-marine-amplifier","title":"JBL Marine A1504 4-Channel Marine Amplifier","description":"\u003cp\u003eThe JBL Marine A1504 is a four-channel marine amplifier designed to add substantial, controlled power to a boat audio system. It can drive four full-range speakers from one compact chassis, making it a practical upgrade when a marine receiver alone does not provide enough output. Its Class D design is intended to provide high output while managing current draw.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to boat owners building a louder multi-speaker system or upgrading existing marine speakers with dedicated amplification. It delivers 150 watts RMS to each of four channels at 4 ohms, with higher output available when using 2-ohm speaker loads. For systems that include subwoofers, the amplifier can also be configured in bridged two-channel or three-channel arrangements.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossovers on the front and rear channels help tailor the signal for the speakers being used. Each crossover section adjusts from 32 to 320 Hz with a 12 dB-per-octave slope, allowing full-range speakers to be high-passed or bridged channels to be low-passed for subwoofer duty. Full-range operation is also available when no crossover is needed.\u003c\/p\u003e\u003cp\u003eThe A1504 supports both low-level preamp inputs and speaker-level inputs, helping it work with aftermarket marine receivers as well as many factory systems. Its selectable turn-on mode supports remote turn-on with low-level inputs or DC-sensing operation with high-level inputs. Balanced differential inputs are designed to reduce susceptibility to induced engine noise.\u003c\/p\u003e\u003cp\u003eMarine-oriented construction includes a conformal-coated circuit board and corrosion-resistant stainless-steel connections. Built-in protection circuitry monitors for short circuits, high temperature, overvoltage, and undervoltage conditions, with a power\/protection indicator for status. Full-range preamp outputs also allow a second amplifier to be added without relying on signal splitters.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Power:\u003c\/strong\u003e Supplies 150 watts RMS to each channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Bridging:\u003c\/strong\u003e Provides up to 450 watts RMS per bridged channel pair at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Front and rear high-pass or low-pass filters support system tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Works with RCA preamp outputs or speaker-level signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Focused Construction:\u003c\/strong\u003e Uses a conformal-coated board and corrosion-resistant connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Expansion:\u003c\/strong\u003e Full-range preamp outputs can feed an additional amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe A1504 uses a low-profile chassis measuring 14-3\/16 inches wide, 2-1\/16 inches high, and 7-1\/8 inches deep. Its Class D platform, conformal-coated circuit board, and corrosion-resistant stainless-steel connections are intended for the environmental demands of marine installations. On-board protection covers short circuits, overheating, overvoltage, and undervoltage conditions.\u003c\/p\u003e\u003cp\u003eJBL recommends 4-gauge power and ground wiring; the amplifier wiring and hardware are not included. Make all wire connections before final mounting, use a location with adequate airflow, and do not mount the heat sink facing downward. The box includes high-level bare-wire-to-RCA adapters, fuses, mounting screws, an owner’s manual, JBL stickers, and a logo badge.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":45632118456390,"sku":"JBLMA1504AM","price":497.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51rqVXi4PaL.jpg?v=1784394744"},{"product_id":"jbl-ma754-4-channel-marine-amplifier","title":"JBL MA754 4-Channel Marine Amplifier","description":"\u003cp\u003eThe JBL MA754 is a four-channel marine amplifier designed to add controlled, full-range power to a boat audio system. It provides four channels for front and rear marine speakers, with the option to bridge channel pairs for compatible 4-ohm subwoofer applications. Its compact footprint helps solve installation challenges where available mounting space is limited.\u003c\/p\u003e\u003cp\u003eAt 14.4V, the MA754 delivers 75 watts RMS to each of four 4-ohm channels, or 100 watts RMS per channel at 2 ohms. For larger drivers or a two-channel setup, it can deliver 200 watts RMS x 2 into 4-ohm bridged loads. This makes it suitable for powering a multi-speaker cockpit system or combining speaker and subwoofer duties in a planned installation.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossovers are provided for both the front and rear channels. The 32-320 Hz adjustment range lets an installer direct bass away from smaller full-range speakers or set up bridged channels for a compatible subwoofer. Full-range operation is also available when no crossover filtering is needed.\u003c\/p\u003e\u003cp\u003eThe amplifier accepts both low-level preamp signals and high-level speaker signals, allowing it to work with many aftermarket and factory-installed marine stereos. Balanced Differential Inputs are engineered to reduce noise and distortion and help limit susceptibility to radiated engine noise. A selectable turn-on mode supports configurations using either a remote turn-on lead or high-level input signals.\u003c\/p\u003e\u003cp\u003eFor expandable systems, the MA754 includes full-range preamp outputs for feeding an additional amplifier without splitters. Built-in protection circuitry monitors for short circuits, high temperature, overvoltage, and undervoltage conditions, with a status LED to indicate a protection condition. The result is a flexible amplifier platform for marine speaker upgrades that need four channels in a low-profile chassis.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Power:\u003c\/strong\u003e Delivers 75 watts RMS x 4 at 4 ohms and 100 watts RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridged Capability:\u003c\/strong\u003e Combines channel pairs to provide 200 watts RMS x 2 into 4-ohm loads at 14.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Front and rear high-pass and low-pass filters adjust from 32 to 320 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Input Compatibility:\u003c\/strong\u003e Accepts low-level preamp signals and high-level speaker signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Range Preamp Outputs:\u003c\/strong\u003e Sends signal to an additional amplifier without requiring splitters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Monitoring:\u003c\/strong\u003e Helps protect against shorts, temperature, overvoltage, and undervoltage conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe MA754 uses a low-profile chassis designed to fit into restricted installation locations. Its Class H amplifier design is intended to deliver output while minimizing current draw. A removable trim and control-panel arrangement provides access to gain, crossover, input-level, and turn-on settings.\u003c\/p\u003e\u003cp\u003ePlan the wiring and connections before permanently mounting the amplifier, and choose a location with adequate air circulation. JBL recommends 8-gauge power and ground leads; wiring and hardware are not included. Mount the amplifier with its heat sink positioned for cooling, and use the included mounting screws only after confirming clearance for the boat structure, wiring, and fuel lines.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":45632120586310,"sku":"JBLMA754AM","price":404.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51RQmvWCYYL.jpg?v=1784394896"},{"product_id":"jbl-jblpa1254-4-channel-powersports-amplifier","title":"JBL JBLPA1254 4-Channel Powersports Amplifier","description":"\u003cp\u003eThe JBL PA1254 is a four-channel Class D powersports amplifier designed to add dedicated amplification to marine, automotive, and off-road audio systems. Its compact footprint helps solve the common challenge of finding room for an amplifier in space-limited installations. It can power four full-range speakers or be configured for two bridged channels.\u003c\/p\u003e\u003cp\u003eWith 75 watts RMS per channel at 4 ohms, the PA1254 is suited to driving compatible speakers with controlled, full-range output. It delivers 125 watts RMS per channel at 2 ohms, while bridged operation provides 250 watts RMS to each of two 4-ohm loads. Separate front and rear level controls support balanced system tuning.\u003c\/p\u003e\u003cp\u003eThis amplifier is built for systems exposed to demanding outdoor conditions. Its ultra-compact aluminum chassis and conformal-coated circuit board support use in marine and powersports environments. The Class D design provides efficient power delivery in a small enclosure.\u003c\/p\u003e\u003cp\u003eFlexible crossover controls allow the PA1254 to fit a range of speaker and subwoofer layouts. The front channels offer selectable full-range or high-pass operation, while the rear channels add selectable low-pass capability. Crossover points at 60, 80, and 120 Hz help divide frequencies between speakers and a subwoofer.\u003c\/p\u003e\u003cp\u003eBoth low-level RCA and high-level speaker inputs are provided for integration with aftermarket or factory-style source units. High-level installation can use the included adapters and the amplifier's DC-offset signal sensing turn-on feature. This makes the PA1254 a practical foundation for upgrading a four-speaker system or building a compact multi-channel setup.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Power:\u003c\/strong\u003e Supplies efficient amplification for compatible full-range speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75W RMS Per Channel:\u003c\/strong\u003e Delivers rated output at 4 ohms across four channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Supports two-channel bridged operation at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Helps match amplifier output to speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Connects with speaker-level or RCA source signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal-Coated Circuit Board:\u003c\/strong\u003e Adds protection for demanding outdoor installations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe PA1254 uses an ultra-compact aluminum chassis measuring 9.53 inches wide, 1.75 inches high, and 3.3 inches deep. Its conformal-coated PCB is intended for harsh-condition use, while the compact enclosure supports mounting where larger amplifiers may not fit. Power and protection indicators provide operating-status feedback.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a secure location with ventilation, avoiding a heat-sink-down orientation. Use 10 AWG power wiring, a properly fused battery connection, and a solid chassis or battery-negative ground connection. For low-level input, connect RCA cables and a remote turn-on lead; for high-level input, use the supplied adapters and set the input selector to HI.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":45632131924038,"sku":"JBLPA1254","price":289.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71XHaYkKkbL.jpg?v=1784395716"},{"product_id":"jbl-stage-gt-60041-4-channel-class-d-car-amplifier","title":"JBL Stage GT 60041 4-Channel Class-D Car Amplifier","description":"\u003cp\u003eThe JBL Stage GT 60041 is a compact four-channel Class-D car amplifier designed to add clean, controlled power to an upgraded speaker system. It delivers 65 watts RMS to each of four channels at 4 ohms, making it suitable for powering front and rear full-range speakers. It can also be bridged to provide 180 watts RMS to each of two 4-ohm full-range channels.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for drivers who want more output and tuning control than a factory radio alone can provide. Its 20 Hz to 20 kHz frequency response supports full-range speaker applications, while adjustable high-pass and low-pass filters help tailor output to the speakers and installation. The variable bass EQ provides additional adjustment at 45 Hz when system tuning calls for it.\u003c\/p\u003e\u003cp\u003eThe Stage GT 60041 accepts both low-level and speaker-level input signals, helping it work with aftermarket receivers as well as many factory audio systems. Low-level input sensitivity ranges from 0.2V to 5V, while high-level sensitivity ranges from 1V to 25V. JBL also specifies OEM load-detect compatibility for factory head units that require a connected speaker load.\u003c\/p\u003e\u003cp\u003eFor everyday vehicle use, the amplifier is designed to operate from 9V to 16V and is compatible with start\/stop vehicle systems. On-board protection includes DC, over-voltage, under-voltage, over-current, and over-temperature protection. These safeguards are intended to help protect the amplifier and connected system during abnormal operating conditions.\u003c\/p\u003e\u003cp\u003eThe amplifier's compact chassis makes it practical for installations with limited mounting space. It measures 7-3\/8 inches wide, 1-15\/16 inches high, and 5-7\/32 inches deep. Use it as a four-speaker amplifier, or bridge its channel pairs when a two-channel configuration better suits the system plan.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class-D Design:\u003c\/strong\u003e Supplies efficient amplification for a four-speaker vehicle audio system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65W RMS Per Channel:\u003c\/strong\u003e Delivers rated power into four 4-ohm full-range channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Produces 180W RMS x 2 at 4 ohms bridged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports factory-radio and aftermarket-source integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossover Controls:\u003c\/strong\u003e Lets you select 32-320 Hz high-pass or low-pass filtering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Board Protection:\u003c\/strong\u003e Helps guard against electrical, thermal, and short-circuit conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Stage GT 60041 uses an anodized extruded aluminum amplifier body with a bead-blast finish, angular end caps, and a glossy JBL logo. Its compact 7-3\/8 x 1-15\/16 x 5-7\/32-inch chassis is designed for installations where available space is limited. The amplifier is supplied with mounting screws and washers for secure installation.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a solid surface with adequate ventilation and route power, ground, signal, and speaker wiring safely away from moving or heat-producing vehicle components. Use the supplied high-level input cables when connecting to compatible speaker-level outputs, or use low-level inputs with an appropriate preamp signal. Match connected speakers to the amplifier's rated 2-ohm minimum per unbridged channel or 4-ohm minimum per bridged channel, and set crossover and input controls during final system tuning.\u003c\/p\u003e","brand":"JBL","offers":[{"title":"Default Title","offer_id":45632177176646,"sku":"JBLSTAGEGT60041AM","price":209.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61wJNjfizNL.jpg?v=1784398130"}],"url":"https:\/\/audiowatt.store\/collections\/4-channel-amplifiers.oembed?page=2","provider":"Audio Watt Store","version":"1.0","type":"link"}