{"title":"MB Quart","description":null,"products":[{"product_id":"mb-quart-fa2-900-5-5-channel-car-audio-amplifier","title":"MB Quart FA2-900.5 5-Channel Car Audio Amplifier","description":"\u003cp\u003eThe MB Quart FA2-900.5 is a compact five-channel car audio amplifier built to power four full-range speakers and one subwoofer from a single chassis. It is intended for vehicle audio upgrades that need dedicated amplification for the main cabin speakers plus low-frequency support. Its five-channel layout can simplify a system compared with using separate full-range and mono amplifiers.\u003c\/p\u003e\u003cp\u003eChannels 1 through 4 deliver up to 100 watts RMS each at 2 ohms or 50 watts RMS each at 4 ohms. The dedicated fifth channel supplies 200 watts RMS at 4 ohms, 250 watts RMS at 2 ohms, or 500 watts RMS at 1 ohm. Only channel 5 is specified as 1-ohm stable, making correct speaker and subwoofer load matching important.\u003c\/p\u003e\u003cp\u003eThe FA2-900.5 uses MB Quart's Class Q1 Class D topology with FLUID-FETS output devices and a rugged MOSFET pulse-width-modulation power supply. Its Q-Stasis pre-amplifier stage is designed to handle low-voltage source signals with minimal distortion. A heavy-duty heat sink helps move heat away from the amplifier's internal MOSFETs during operation.\u003c\/p\u003e\u003cp\u003eVariable electronic crossovers let the amplifier be configured for separate speaker and subwoofer duties. The high-pass crossover adjusts from 40Hz to 400Hz, while the low-pass crossover adjusts from 40Hz to 300Hz. A 10Hz to 40Hz subsonic filter and 0dB to 12dB bass boost provide additional low-frequency adjustment.\u003c\/p\u003e\u003cp\u003eThis amplifier supports speaker-level audio inputs and uses nickel-plated RCA inputs for low-level connections. DC Signal Sense can automatically turn the amplifier on when it detects a signal at the RCA inputs, reducing the need for a separate remote turn-on lead in compatible installations. A wired bass remote is included for making bass-level adjustments from the driver's seat.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Channel Configuration:\u003c\/strong\u003e Powers four full-range channels and one dedicated subwoofer channel from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Subwoofer Channel:\u003c\/strong\u003e Channel 5 is rated for 500 watts RMS at 1 ohm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps route appropriate frequency ranges to speakers and the subwoofer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Enables automatic turn-on from a detected RCA input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Lets the driver make convenient bass-level adjustments from the listening position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Diagnostics:\u003c\/strong\u003e Illuminated indicators monitor overload and speaker-short protection conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe FA2-900.5 has a black compact chassis with a heavy-duty heat sink, nickel-plated RCA inputs, and heavy-duty power, ground, and speaker connections. MB Quart specifies a Class D design, FLUID-FETS output devices, and a MOSFET PWM power supply. The amplifier measures 15.0 inches long, 5.82 inches wide, and 2.2 inches high.\u003c\/p\u003e\u003cp\u003eFor installation, use the amplifier with properly matched speaker and subwoofer impedances, keeping the 1-ohm load limited to channel 5. The power and ground terminals accept up to 4 AWG cable, while speaker terminals accept up to 12 AWG cable; MB Quart specifies external 100A fusing. Mount the amplifier to a secure surface with adequate ventilation, then set crossover, subsonic-filter, gain, and bass settings to suit the connected speakers and source unit.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633161297990,"sku":"FA2-900-5","price":235.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61_jetmPrHL.jpg?v=1784407023"},{"product_id":"mb-quart-mb-dbe2-1-waterproof-digital-bass-processor","title":"MB Quart MB-DBE2.1 Waterproof Digital Bass Processor","description":"\u003cp\u003eThe MB Quart MB-DBE2.1 is a compact digital bass enhancement processor for audio systems that need more control over low-frequency output. It accepts a two-channel RCA low-level signal and provides an adjustable bass-enhancement preamp output for connection to a subwoofer amplifier. Its purpose is to enhance and restore bass content while allowing the bass character to be tuned for the vehicle and system.\u003c\/p\u003e\u003cp\u003eThis processor is suited to car, marine, powersports, and RV audio installations where a dedicated subwoofer amplifier is used. The adjustable output level can be controlled from the included wired bass remote, allowing convenient changes from the dash area. It is a practical addition for listeners who want to tailor bass impact without changing the source unit.\u003c\/p\u003e\u003cp\u003eThe MB-DBE2.1 uses adjustable Width and Sweep controls to shape the enhanced bass range. Sweep selects the center frequency of the enhanced output, while Width changes how broad the affected frequency range is around that selected center point. This enables a more focused or broader bass effect according to the system's subwoofer, enclosure, and listening preference.\u003c\/p\u003e\u003cp\u003eIts IP67 potted construction is designed for installations exposed to moisture and dust. The internal potting material seals the electronics, while the processor also uses waterproof RCA connections. Balanced differential low-level inputs are included to help reduce noise in the audio signal path.\u003c\/p\u003e\u003cp\u003eWith its small 5.16-inch by 3.94-inch footprint, the MB-DBE2.1 can fit into compact installation locations. It works between an RCA-equipped source unit and a subwoofer amplifier, using +12V power, chassis ground, and remote turn-on wiring. Mounting hardware is included for securing the processor to a flat surface.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Bass Enhancement:\u003c\/strong\u003e Enhances and restores bass content for a dedicated subwoofer signal path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth And Sweep Controls:\u003c\/strong\u003e Tune the center frequency and breadth of the enhanced bass range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Adjust bass output level remotely by up to +16.6 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 Potted Construction:\u003c\/strong\u003e Helps protect the processor from dust and water exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Differential Inputs:\u003c\/strong\u003e Low-level RCA input design helps reduce system noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Processor Chassis:\u003c\/strong\u003e Small dimensions support flexible mounting in vehicles and recreational applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe MB-DBE2.1 has a black, fully potted enclosure with an IP67 waterproof rating. Waterproof RCA connections and a JST-style bass-remote connection support use in mobile, marine, RV, and powersports environments. Its compact housing includes attached mounting brackets for a secure flat-surface installation.\u003c\/p\u003e\u003cp\u003eInstall the processor between an RCA-equipped source unit and the subwoofer amplifier. Connect its power lead to a constant or switched +12V source, connect ground to clean bare chassis metal, and use the remote-input and remote-output leads for turn-on control. Before permanently mounting it, connect the wiring and verify operation, then adjust the Width, Sweep, and bass output level to suit the system.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633161429062,"sku":"MB-DBE2-1","price":173.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61CZJ0J9nuL.jpg?v=1784407073"},{"product_id":"mb-quart-mbeq7b-half-din-7-band-car-audio-equalizer","title":"MB Quart MBEQ7B Half-DIN 7-Band Car Audio Equalizer","description":"\u003cp\u003eThe MB Quart MBEQ7B is a half-DIN, 7-band car audio equalizer and preamp processor designed to add hands-on tone control to an amplified vehicle audio system. It provides a central point for adjusting overall volume, front-to-rear balance, subwoofer level, and key frequency ranges. This makes it useful when a source unit does not offer enough sound-shaping control or when additional signal management is needed.\u003c\/p\u003e\u003cp\u003eIts seven adjustable EQ bands cover bass, midrange, and treble regions from 50Hz through 16kHz. Each band offers up to 12dB of boost or cut, allowing targeted correction for a system, vehicle cabin, or listening preference. The result is a practical way to refine tonal balance without replacing the head unit.\u003c\/p\u003e\u003cp\u003eThe MBEQ7B uses a 9-volt preamp line-driver circuit to send a strong signal through its RCA outputs. It is specified with a 10Hz to 20kHz frequency response and a signal-to-noise ratio greater than 99dB. Front, rear, and subwoofer output sections support systems using separate amplifiers for cabin speakers and bass.\u003c\/p\u003e\u003cp\u003eMultiple source connections make this processor suitable for both aftermarket and factory-radio upgrades. It accepts RCA source input, high-level speaker input, and a front-panel 3.5mm auxiliary input for a compatible portable media device. An input selector and level controls help match source levels before the signal is sent to the equalizer and outputs.\u003c\/p\u003e\u003cp\u003eFor bass integration, the MBEQ7B includes selectable subwoofer low-pass frequencies at 60Hz, 80Hz, or 120Hz. Its front and rear channels use selectable 12dB-per-octave high-pass crossover filtering, while the subwoofer output uses low-pass filtering. This arrangement fits well between a source unit and external amplifiers in a multi-speaker car audio installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeven-Band Equalizer:\u003c\/strong\u003e Adjusts seven key frequency areas for more precise tonal tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9-Volt Line Driver:\u003c\/strong\u003e Sends a high-level preamp signal through the RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Subwoofer Crossover:\u003c\/strong\u003e Offers 60Hz, 80Hz, and 120Hz low-pass choices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Audio Inputs:\u003c\/strong\u003e Supports RCA, speaker-level, and front 3.5mm auxiliary sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront\/Rear\/Sub Outputs:\u003c\/strong\u003e Feeds separate amplifiers for front, rear, and subwoofer channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHalf-DIN Chassis:\u003c\/strong\u003e Saves dash space while keeping controls within reach.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe MBEQ7B uses a compact half-DIN chassis with a front-panel volume\/fader control, dedicated subwoofer level control, individual EQ controls, and selectable LED illumination. Its layout places sound-adjustment functions at the dash while keeping signal and power connections at the rear. Mounting brackets and hardware are included for under-dash or in-dash placement.\u003c\/p\u003e\u003cp\u003eInstall the unit between the source and external amplifier inputs, using the RCA input for a line-level source or the high-level input for speaker-level factory-radio signals. Connect the front, rear, and subwoofer RCA outputs to their corresponding amplifier channels, then select the subwoofer crossover frequency and set input levels carefully. The unit requires +12V power, chassis ground, remote turn-on, and a recommended 2A inline fuse.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633161691206,"sku":"MBEQ7B","price":97.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71D9C4yrlxL.jpg?v=1784407145"},{"product_id":"mb-quart-na2-500-5-five-channel-powersports-amplifier","title":"MB Quart NA2-500.5 Five-Channel Powersports Amplifier","description":"\u003cp\u003eThe MB Quart NA2-500.5 is a compact five-channel Class D amplifier designed for marine and powersports audio systems. It combines four full-range channels with a dedicated subwoofer channel, allowing one amplifier to support speakers and bass in the same installation. Its compact format helps solve space limitations common in boats, UTVs, ATVs, and similar vehicles.\u003c\/p\u003e\u003cp\u003eThis amplifier is intended for system builders who want to power front and rear speakers while adding a subwoofer channel without installing separate amplifiers. At 4 ohms, it is rated for 4 x 40 watts plus 1 x 100 watts; at 2 ohms, published output is 4 x 80 watts plus 1 x 200 watts. The five-channel layout supports a balanced system with full-range output and dedicated low-frequency reinforcement.\u003c\/p\u003e\u003cp\u003eThe NA2-500.5 uses full-range Class D topology and a PWM MOSFET power supply to deliver power from a small aluminum heatsink chassis. Its Q-Stasis preamplifier stage is designed to reduce incoming source noise, while nickel-plated RCA inputs support corrosion-resistant signal connections. A signal-to-noise ratio greater than 90 dB and a 20 Hz to 20 kHz frequency response support clear system playback.\u003c\/p\u003e\u003cp\u003eBuilt-in signal controls make it practical for mixed speaker-and-subwoofer systems. Front and rear channels use switched full-range or high-pass operation, while the subwoofer channel uses a variable low-pass filter from 50 Hz to 150 Hz. The amplifier also provides bass boost adjustment at 45 Hz and includes a wired bass remote for convenient level adjustment.\u003c\/p\u003e\u003cp\u003eFor marine and powersports installations, the NA2-500.5 uses conformal-coated circuit boards and marine-grade protection intended to resist moisture and salt-spray exposure. Quick-disconnect wiring connections can simplify seasonal removal or service access. It is a suitable upgrade path for a compact multi-speaker system that also needs a dedicated subwoofer channel.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Channel Layout:\u003c\/strong\u003e Powers four full-range channels plus one dedicated subwoofer channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass D Amplification:\u003c\/strong\u003e Delivers efficient output from a compact amplifier chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Capability:\u003c\/strong\u003e Published ratings support 2-ohm speaker and subwoofer loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Subwoofer LPF:\u003c\/strong\u003e Adjusts low-pass crossover frequency from 50 Hz to 150 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Grade Protection:\u003c\/strong\u003e Conformal-coated boards help resist moisture and salt-spray exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Allows convenient adjustment of bass level from the vehicle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe NA2-500.5 has a black compact chassis with an aluminum heatsink, nickel-plated connections, and quick-disconnect wiring provisions. Its full-range Class D architecture, PWM MOSFET power supply, and Simpatico Coil Design are engineered for efficient operation in a small footprint. Three-stage LED protection diagnostics monitor thermal, overload, DC, and speaker-short conditions.\u003c\/p\u003e\u003cp\u003eInstall the amplifier in a secure, ventilated location away from direct water exposure, using appropriate power, ground, speaker, and RCA wiring. The installation guide identifies a 40-amp fuse and 8-gauge power cable for this model. Configure the front and rear channels for full-range or high-pass use, then use the dedicated low-pass-filtered fifth channel for a compatible subwoofer.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162018886,"sku":"NA2-500-5","price":326.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/81XNuUSyPCL.jpg?v=1784407183"},{"product_id":"mb-quart-na3-1000-5-5-channel-waterproof-marine-amplifier","title":"MB Quart NA3-1000.5 5-Channel Waterproof Marine Amplifier","description":"\u003cp\u003eThe MB Quart NA3-1000.5 is a five-channel marine amplifier designed to power a complete boat, powersports, or outdoor audio system from one weather-resistant chassis. It combines four full-range channels for speakers with a dedicated fifth channel for a subwoofer. This layout helps simplify system design when upgrading factory or aftermarket marine audio.\u003c\/p\u003e\u003cp\u003eChannels 1 through 4 are intended for full-range speakers, while the dedicated Channel 5 subwoofer section provides low-frequency support. The amplifier is rated at 4 x 60 watts plus 1 x 350 watts RMS at 4 ohms, with the four full-range channels rated at 120 watts each at 2 ohms. Channel 5 is stable to 1 ohm for subwoofer applications.\u003c\/p\u003e\u003cp\u003eThe NA3-1000.5 uses MB Quart Class SQ circuitry for its multi-channel section and a Class Q1 mono design for Channel 5. Adjustable input sensitivity, electronic crossovers, and bass EQ allow the amplifier to be matched to compatible speakers, subwoofers, and source units. Its Q-Stasis preamplifier stage is designed to accept low-voltage source signals with minimal added distortion.\u003c\/p\u003e\u003cp\u003eMarine-focused construction makes this amplifier suitable for installations exposed to water, dust, vibration, and changing outdoor conditions. It carries an IPX67 rating and uses marine-specific connectors. The gloss-white housing and concealed top-mounted control panel support a clean installation while keeping tuning controls protected.\u003c\/p\u003e\u003cp\u003eThis amplifier is a practical fit for systems using four cabin, tower, or deck speakers plus one subwoofer. RCA inputs are provided for source units with preamp outputs, while high-level input capability and DC-sense turn-on support integration with compatible source units that do not provide RCA outputs. A bass remote is included for convenient adjustment of the subwoofer channel level.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Channel Layout:\u003c\/strong\u003e Powers four full-range speakers and one subwoofer from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX67 Protection:\u003c\/strong\u003e Supports use in waterproof and dustproof marine-oriented installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Subwoofer Channel:\u003c\/strong\u003e Channel 5 is stable to 1 ohm and includes bass remote support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Lets you set high-pass and low-pass filtering for appropriate speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ-Stasis Preamplifier:\u003c\/strong\u003e Helps process low-voltage source signals with minimal distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Turn-On Methods:\u003c\/strong\u003e Supports remote-wire turn-on or DC-sense activation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe NA3-1000.5 has a gloss-white marine chassis with a top-mounted control panel concealed beneath a removable faceplate. Its marine-specific connectors, IPX67 rating, and protected control arrangement are intended for marine and powersports environments. LED protection diagnostics provide amplifier status feedback.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure surface with adequate airflow and do not mount it upside down. Use high-quality 10 AWG power and ground cable, connect the power lead through a fuse within 18 inches of the battery, and make the ground connection to clean bare metal near the amplifier. Use the front and rear high-pass filters for full-range speakers and the Channel 5 low-pass filter for a compatible subwoofer.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162215494,"sku":"NA3-1000-5","price":353.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51jRCVVb7JL.jpg?v=1784407259"},{"product_id":"mb-quart-na3-560-4-4-channel-marine-amplifier","title":"MB Quart NA3-560.4 4-Channel Marine Amplifier","description":"\u003cp\u003eThe MB Quart NA3-560.4 is a four-channel marine amplifier designed to add clean, configurable power to boat, powersports, and weather-exposed audio systems. It delivers up to 70 watts RMS per channel at 4 ohms or 140 watts RMS per channel at 2 ohms. This makes it suitable for powering four full-range marine speakers from a compatible source unit.\u003c\/p\u003e\u003cp\u003eIts four-channel layout gives installers flexibility for balanced multi-speaker systems, including front-and-rear zone arrangements. Each channel pair can also be bridged, allowing the amplifier to provide up to 280 watts RMS per bridged pair at 4 ohms. The result is a practical option for systems that may evolve from four speakers to a mixed speaker-and-subwoofer configuration.\u003c\/p\u003e\u003cp\u003eThe NA3-560.4 uses MB Quart's Class SQ Class A\/B topology, Q-Stasis preamplifier section, and FLUID-FET output devices. Its published frequency response extends from 10 Hz to 45 kHz, with a signal-to-noise ratio above 90 dB and total harmonic distortion below 0.2%. Adjustable gain, crossover, and bass-boost controls allow the amplifier to be matched to the speakers and source unit in the system.\u003c\/p\u003e\u003cp\u003eFor marine-duty use, the amplifier is IPX67 rated and uses a conformal-coated circuit board, sealed connections, and corrosion-resistant stainless-steel hardware. A gloss-white epoxy finish and heavy-duty heat sink help transfer heat away from the amplifier's output stage. The top-mounted controls are protected by a removable sealed cover.\u003c\/p\u003e\u003cp\u003eRCA inputs support conventional preamp-level source connections, while speaker-level input capability and DC signal sensing support installations using source units without RCA outputs. The amplifier can be switched between remote turn-on and DC-sense activation modes. It is a focused power-amplifier upgrade, so a compatible source unit, speakers, power wiring, ground connection, and correctly sized fuse are still required.\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 compact amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Power:\u003c\/strong\u003e Delivers 140 watts RMS per channel at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channel Pairs:\u003c\/strong\u003e Supports two 280-watt RMS bridged channels at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX67 Marine Protection:\u003c\/strong\u003e Built for water- and dust-resistant marine installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Helps route appropriate frequencies to speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sensing:\u003c\/strong\u003e Supports turn-on with compatible speaker-level source signals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe NA3-560.4 combines a gloss-white epoxy exterior, heavy-duty heat sink, conformal-coated circuit board, sealed connection points, and stainless-steel hardware for marine-oriented durability. Its top-mounted tuning controls sit beneath a removable cover that should be reinstalled after adjustment. The amplifier also includes illuminated status indicators for overload and speaker-short protection monitoring.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely in a location with adequate ventilation and do not mount it upside down. Use high-quality 10 AWG copper power and ground cable, install a 35-amp fuse within 18 inches of the battery connection, and use the included harnesses for power and speaker connections. Set gain as a signal-matching control rather than as a volume control, then select full-range, high-pass, or low-pass crossover operation for the connected speakers.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162248262,"sku":"NA3-560-4","price":259.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51LWiCEJg9L.jpg?v=1784407312"},{"product_id":"mb-quart-np1-116-6-5-waterproof-marine-speakers","title":"MB Quart NP1-116 6.5\" Waterproof Marine Speakers","description":"\u003cp\u003eThe MB Quart NP1-116 Nautic Premium is a pair of 6.5-inch coaxial speakers designed for marine, powersports, RV, and other outdoor audio installations. They provide a weather-resistant replacement or upgrade for factory speakers exposed to water, dirt, sunlight, and changing temperatures. The pair includes interchangeable grille options for a coordinated installation appearance.\u003c\/p\u003e\u003cp\u003eThese speakers are suited to boat owners, off-road vehicle builders, and RV users who need full-range sound from a conventional 6.5-inch mounting location. Their 4-ohm impedance allows them to be connected to compatible marine source units or external amplifiers. Confirm the available mounting clearance and cutout size before installation.\u003c\/p\u003e\u003cp\u003eThe NP1-116 uses a 1-inch titanium dome tweeter to reproduce high-frequency detail, paired with an injection-molded composite polypropylene woofer cone for midrange and bass output. Its published frequency response is 30 Hz to 22 kHz, with 92 dB sensitivity. Rated power handling is 60 watts RMS and 120 watts peak per speaker.\u003c\/p\u003e\u003cp\u003eMarine-focused construction includes an IPX68-rated LIFE SHIELD protection system, UV-resistant ASA and fiberglass composite frames, molded polymer sealing gaskets, and corrosion-resistant gold-plated connectors. Co-molded Santoprene surrounds and an aramid-fiber composite spider support cone control in outdoor conditions. Front and rear venting is used to circulate air around the voice coil.\u003c\/p\u003e\u003cp\u003eUse the NP1-116 as a full-range speaker pair in a boat cabin, helm area, RV, side-by-side, or similar panel-mount installation. They can operate from a compatible receiver or from amplifier channels matched appropriately to their 4-ohm load and 60-watt RMS rating. For larger systems, add additional matched full-range speakers or a marine-rated subwoofer and amplifier as needed.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX68 Protection:\u003c\/strong\u003e Designed for resistance to water, dirt, and outdoor exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Coaxial Format:\u003c\/strong\u003e Combines woofer and tweeter in one panel-mount speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium Dome Tweeter:\u003c\/strong\u003e Provides detailed high-frequency reproduction from a 1-inch dome.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposite Polypropylene Cone:\u003c\/strong\u003e Helps limit cone flex for controlled full-range playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-Watt RMS Rating:\u003c\/strong\u003e Matches compatible receiver or amplifier channels at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Grille Colors:\u003c\/strong\u003e Includes Kaimu Black, Miami Silver, and Bahama White grilles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe NP1-116 uses a UV-resistant ASA and fiberglass composite frame, injection-molded composite polypropylene cone, co-molded Santoprene surround, and molded polymer sealing gasket. Its tweeter uses a titanium dome with a waterproof-coated silk surround and a high-energy N38H neodymium motor. The midwoofer uses a high-energy ferrite magnet, while the terminals are 10-karat gold plated for corrosion resistance.\u003c\/p\u003e\u003cp\u003ePlan for a 5.6-inch mounting cutout and approximately 3.05 inches of chassis depth, then verify clearance behind the mounting surface before cutting or fastening. Connect speaker positive and negative leads to the corresponding terminals, route wiring away from sharp edges and heat sources, and select the desired grille before securing it with the supplied mounting hardware. The installation guide recommends professional installation when panel removal, new cutouts, or wiring routes are uncertain.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162510406,"sku":"NP1-116","price":164.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61A28eGOrbL.jpg?v=1784407353"},{"product_id":"mb-quart-ps1-316-6-5-3-way-component-speaker-system","title":"MB Quart PS1-316 6.5\" 3-Way Component Speaker System","description":"\u003cp\u003eThe MB Quart PS1-316 is a 6.5-inch, 3-way component speaker system designed for vehicle audio upgrades that need separate drivers for bass, midrange, and treble reproduction. Each pair includes two 6.5-inch mid-bass woofers, two 4-inch midrange drivers, two 1-inch tweeters, and two external crossover networks. It is intended for custom installations where factory speakers alone do not provide the desired system layout or tuning flexibility.\u003c\/p\u003e\u003cp\u003eThis system uses separate drivers to place low, middle, and high frequencies with their appropriate components rather than asking one full-range speaker to reproduce the entire range. The 6.5-inch mid-bass drivers use aerated paper cones with a mica blend, while the 1-inch tweeters use magnesium domes. This combination is built for listeners assembling a more detailed front-stage system with dedicated crossover control.\u003c\/p\u003e\u003cp\u003eThe PS1-316 is rated at 100 watts RMS per side and 200 watts peak per side, with a 4-ohm impedance. Its published frequency range is 20 Hz to 22 kHz, and its sensitivity is rated at 85.5 dB at 1 watt\/1 meter. An appropriately matched external amplifier can help provide the clean power needed for the system's rated performance.\u003c\/p\u003e\u003cp\u003eIts external passive crossover networks route frequencies to the individual drivers and use a Cauer-topology Butterworth filter design. The crossover provides 0 dB, +3 dB, and +6 dB tweeter-level connection options for system tuning. The tweeter housing also supports surface or flush mounting, while its removable phase lens can be used to select narrow or wide dispersion characteristics.\u003c\/p\u003e\u003cp\u003eThe PS1-316 is suited to vehicles with room for separate woofer, midrange, tweeter, and crossover installation locations. It can be used as a front-stage upgrade in a multi-amplifier or amplified factory-radio system, provided the mounting depth and wiring paths are checked first. Grilles, mounting hardware, crossover mounting material, and tweeter mounting parts are included for a custom installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Way Component Layout:\u003c\/strong\u003e Separate woofer, midrange, and tweeter drivers support a staged installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Mid-Bass Woofers:\u003c\/strong\u003e Aerated paper and mica-blend cones handle lower-frequency reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Inch Magnesium Tweeters:\u003c\/strong\u003e Dome tweeters reproduce high frequencies with adjustable dispersion options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Passive Crossovers:\u003c\/strong\u003e Dedicated networks divide frequencies between the speaker components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTweeter Level Adjustment:\u003c\/strong\u003e Selectable 0 dB, +3 dB, and +6 dB connections aid tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Installation Hardware:\u003c\/strong\u003e Grilles, tweeter mounts, templates, fasteners, and crossover mounts are supplied.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe system combines paper\/mica-cone woofer and midrange drivers with magnesium-dome tweeters. Molded polymer sealing gaskets help isolate the speakers from the mounting surface, while stainless-steel push-and-insert connectors are used for the connections. The woofers use a woven fiber cotton\/poly-blend spider, and the frame and spider venting promote air movement around the voice coil.\u003c\/p\u003e\u003cp\u003eVerify vehicle fitment, clearance behind the mounting surface, and window-mechanism clearance before permanently mounting the drivers. Connect the amplifier or head-unit speaker output to each crossover input, then connect each crossover output to its assigned speaker component while observing polarity. Mount the crossovers on a secure, dry surface away from window mechanisms, and use factory wire boots or grommets where possible when routing new wiring.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162674246,"sku":"PS1-316","price":353.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/613IVgEdxdL.jpg?v=1784407406"},{"product_id":"mb-quart-ra1-280-4-reference-4-channel-amplifier","title":"MB Quart RA1-280.4 Reference 4-Channel Amplifier","description":"\u003cp\u003eThe MB Quart RA1-280.4 is a compact four-channel car amplifier for powering front and rear speakers from an aftermarket or factory-based audio system. Its four-channel layout makes it suited to common full-range speaker upgrades where a head unit alone does not provide enough clean output. It is designed for universal vehicle applications and supports 2- or 4-channel operation.\u003c\/p\u003e\u003cp\u003eRated at 50 watts per channel into 4 ohms and 70 watts per channel into 2 ohms, the RA1-280.4 is intended for efficient power delivery to compatible full-range speakers. This makes it a practical match for many door-speaker, component-speaker, and coaxial-speaker installations. Independent crossover sections help tailor the signal for the speakers being used.\u003c\/p\u003e\u003cp\u003eThe amplifier uses MB Quart's Class SQ Class D topology, combining compact Class D efficiency with a four-channel configuration. A Q-Stasis low-noise preamplifier stage and FLUID-FETS output-device technology are part of its signal and output design. The specified signal-to-noise ratio is greater than 101 dB, with total harmonic distortion rated below 0.09%.\u003c\/p\u003e\u003cp\u003eVariable high-pass and low-pass crossover controls are provided for channels 1 and 2 as well as channels 3 and 4. Each channel pair can be set to full-range, high-pass, or low-pass operation, with a 50 to 250 Hz adjustment range. A 0 to 9 dB bass-boost control provides an additional low-frequency adjustment when appropriate for the system.\u003c\/p\u003e\u003cp\u003eFor factory-audio integration, the RA1-280.4 includes DC Signal Sense auto turn-on capability. This feature can allow the amplifier to power on when it receives a signal, reducing the need for a separate remote turn-on lead in applicable installations. It uses RCA inputs and is intended to be installed with properly sized power, ground, speaker, and signal wiring.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Configuration:\u003c\/strong\u003e Powers up to four compatible full-range speaker channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass SQ Class D Design:\u003c\/strong\u003e Provides efficient multi-channel amplification in a compact chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50\/70-Watt Channel Ratings:\u003c\/strong\u003e Delivers 50 watts at 4 ohms or 70 watts at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Lets each channel pair run full-range, high-pass, or low-pass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Supports automatic turn-on from an incoming signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0-9 dB Bass Boost:\u003c\/strong\u003e Adds adjustable low-frequency output control when needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RA1-280.4 uses an aluminum heat sink to dissipate heat and heavy-duty connection hardware for power, ground, and speaker wiring. Its power supply is a MOSFET pulse-width-modulation design, while nickel-plated RCA inputs are designed for secure signal connections. The black amplifier chassis measures 11.0 inches long, 6.0 inches wide, and 2.25 inches high.\u003c\/p\u003e\u003cp\u003eInstall the amplifier on a secure surface with adequate ventilation and do not mount it upside down. MB Quart specifies 4 AWG power and ground cable requirements and accepts up to 12 AWG speaker wire at the terminals; the amplifier uses a 40A external fuse. Set each channel pair's crossover mode and 50-250 Hz crossover point to suit the connected speakers, and use compatible 2- or 4-ohm speaker loads.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633162772550,"sku":"RA1280-4","price":228.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51p_whjCOwL.jpg?v=1784407442"},{"product_id":"mb-quart-ra1-710-5-5-channel-class-d-amplifier","title":"MB Quart RA1-710.5 5-Channel Class D Amplifier","description":"\u003cp\u003eThe MB Quart RA1-710.5 is a five-channel car amplifier designed to power front and rear speakers along with a dedicated subwoofer from one chassis. It provides four full-range channels for a vehicle's main speakers and a separate fifth channel for low-frequency output. This configuration can simplify a complete audio-system upgrade where space and wiring organization matter.\u003c\/p\u003e\u003cp\u003eFor the full-range system, channels 1 through 4 provide 50 watts each at 4 ohms or 100 watts each at 2 ohms. The dedicated subwoofer channel provides 150 watts at 2 or 4 ohms, or up to 350 watts at 1 ohm. The fifth channel is the only channel rated for 1-ohm operation.\u003c\/p\u003e\u003cp\u003eThe amplifier uses Class D topology, with MB Quart identifying Class SQ operation for the full-range channels and Class Q1 operation for channel 5. Its full-range frequency response is rated from 10 Hz to 35 kHz, while the subwoofer channel is rated from 10 Hz to 250 Hz. Variable electronic crossovers allow the main speakers and subwoofer to be filtered for their intended frequency ranges.\u003c\/p\u003e\u003cp\u003eIntegrated setup controls include selectable full-range or high-pass filtering on channels 1 through 4, low-pass filtering on channel 5, a selectable 25 Hz subsonic filter, and 0 to 12 dB of bass boost. A wired bass remote is included for accessible adjustment of bass level from the cabin. The amplifier also supports DC signal sensing, which can turn it on when a signal is detected at its RCA inputs.\u003c\/p\u003e\u003cp\u003eThe RA1-710.5 is suited to universal vehicle applications and can be used in a system with an aftermarket source unit or an appropriately adapted factory-audio signal. Its 0.02 to 9V input-voltage range accommodates a broad range of source outputs. It is a practical choice for installers building a single-amplifier, five-channel system with controlled crossover settings and a dedicated subwoofer channel.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-Channel Layout:\u003c\/strong\u003e Powers four speakers plus one dedicated subwoofer channel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Subwoofer Channel:\u003c\/strong\u003e Channel 5 delivers up to 350 watts at 1 ohm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Crossovers:\u003c\/strong\u003e Filters speaker and subwoofer frequencies for system tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Allows convenient bass-level adjustment from the driver's seat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Signal Sense:\u003c\/strong\u003e Supports automatic turn-on from a detected input signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass D Design:\u003c\/strong\u003e Uses efficient Class D amplification across all five channels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RA1-710.5 uses an aluminum heat sink to help dissipate heat during operation and a rugged MOSFET pulse-width-modulation power supply. Nickel-plated RCA inputs and heavy-duty connection points are designed for secure signal and wiring connections. The amplifier has a black finish and a compact unit footprint measuring 12.75 inches long, 6 inches wide, and 2.25 inches high.\u003c\/p\u003e\u003cp\u003eUse 4 AWG power and ground cable with the amplifier's 4 AWG power terminals, and use up to 12 AWG speaker wire at the speaker terminals. An 80A external fuse is specified, and the amplifier should be mounted on a secure surface with adequate ventilation rather than upside down. For factory speaker-level signals, speaker-wire-to-RCA adapters are required; the included bass remote can be mounted within reach for subwoofer-level adjustment.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633163198534,"sku":"RA1710-5","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61he7GjPGZL.jpg?v=1784407479"},{"product_id":"mb-quart-rk1-168-5x7-6x8-inch-2-way-coaxial-speakers","title":"MB Quart RK1-168 5x7\/6x8-Inch 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart RK1-168 is a pair of 5x7\/6x8-inch, 2-way coaxial car speakers designed as a direct-size upgrade for compatible factory speaker locations. Each speaker combines a woofer and centrally mounted tweeter in one assembly, simplifying an upgrade where separate external tweeters are not desired. The pair is rated at 4 ohms and is intended for use with compatible factory radios or aftermarket amplification.\u003c\/p\u003e\u003cp\u003eThese Reference Series speakers use lightweight craft pulp cones reinforced with bamboo fiber for midrange and bass reproduction. Their curvilinear cone profile is designed to add strength and reduce cone flex during playback. A rubber surround supports cone movement, while the red woven fiber cotton\/poly-blend spider helps stabilize the cone and voice-coil assembly.\u003c\/p\u003e\u003cp\u003eHigh frequencies are handled by 0.75-inch titanium dome tweeters with MB Quart WideSphere technology. This tweeter design is intended to provide broader off-axis high-frequency dispersion, which can be useful in door and rear-deck speaker locations where listeners are not directly in front of the speakers. An integrated 2-way crossover routes the appropriate frequencies to the woofer and tweeter.\u003c\/p\u003e\u003cp\u003eThe RK1-168 is rated for 50 watts RMS and 100 watts peak power per speaker, or 100 watts RMS and 200 watts peak for the pair. With 88 dB sensitivity and a stated 35 Hz to 20 kHz frequency response, it is suited to balanced full-range playback in a compatible vehicle installation. Power matching should be based on the continuous RMS rating rather than the peak rating.\u003c\/p\u003e\u003cp\u003eFor durability in an automotive environment, the speakers use high-temperature adhesive at the cone-to-surround connection, molded polymer sealing gaskets, and a PA66 composite frame reinforced with 30% glass fiber. Vents through the spider and frame ribs are designed to exchange air around the voice coil. This pair is a practical option for replacing compatible 5x7-inch or 6x8-inch factory speakers while retaining a conventional coaxial layout.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5x7\/6x8 Fitment:\u003c\/strong\u003e Designed for compatible oval factory speaker locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Coaxial Design:\u003c\/strong\u003e Combines woofer and tweeter in each speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium Dome Tweeter:\u003c\/strong\u003e Handles high frequencies with WideSphere technology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulp\/Bamboo Fiber Cone:\u003c\/strong\u003e Supports midrange and bass reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Crossover:\u003c\/strong\u003e Directs frequencies between the two drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Impedance:\u003c\/strong\u003e Matches many car-audio speaker amplifier channels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RK1-168 uses a craft pulp and bamboo-fiber woofer cone, rubber surround, titanium tweeter, and a PA66 composite frame with 30% glass-fiber reinforcement. High-temperature adhesive, a molded polymer gasket, a Kapton voice-coil former, and a ventilated motor\/frame structure are part of the speaker construction. Grilles are not included.\u003c\/p\u003e\u003cp\u003eConfirm that the vehicle accepts a 5x7-inch or 6x8-inch speaker and verify mounting clearance before installation. The listed top-mount depth is 2 9\/16 inches and bottom-mount depth is 2 3\/4 inches, so window travel and door-panel clearance should be checked. Connect speaker polarity correctly, secure wiring away from moving parts and sharp metal edges, and use the included mounting hardware where appropriate.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633163690054,"sku":"RK1-168","price":132.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71Er2kS8mTL.jpg?v=1784407544"},{"product_id":"mb-quart-rk1-169-6x9-2-way-coaxial-speakers","title":"MB Quart RK1-169 6x9\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart RK1-169 is a pair of 6x9-inch, 2-way coaxial car speakers designed to replace factory speakers or support a custom car-audio upgrade. Its coaxial layout combines the woofer and tweeter in each speaker, helping simplify installation where a 6x9-inch speaker location is available. With 4-ohm impedance, the pair is suited to many aftermarket and compatible factory-powered systems.\u003c\/p\u003e\u003cp\u003eThese Reference Series speakers use lightweight craft-pulp cones reinforced with bamboo fiber for midrange and bass reproduction. The curvilinear cone profile is intended to add rigidity while helping reduce unwanted cone flex. A butyl-rubber surround supports the woofer assembly during normal operation.\u003c\/p\u003e\u003cp\u003eHigh frequencies are handled by 0.75-inch titanium dome tweeters with MB Quart WideSphere technology. This tweeter design is intended to improve off-axis dispersion, which can be useful in vehicle locations where speakers are not aimed directly at listeners. The result is a full-range coaxial design that covers both low and high frequency duties from one mounting position.\u003c\/p\u003e\u003cp\u003eThe RK1-169 is rated for 50 watts RMS and 100 watts peak power per speaker, or 100 watts RMS and 200 watts peak power for the pair. Its 85.5 dB sensitivity and 4-ohm impedance should be considered when matching it with a head unit or external amplifier. Use clean power within the stated RMS rating for appropriate power matching.\u003c\/p\u003e\u003cp\u003eFor a complete system upgrade, these speakers can be used in front or rear 6x9-inch locations where vehicle fitment and clearance permit. The built-in 2-way crossover routes frequencies between the woofer and tweeter without requiring an external passive crossover. Grilles are included for installations where the speakers will be visible or mounted in a custom location.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6x9-Inch Coaxial Design:\u003c\/strong\u003e Combines woofer and tweeter in each speaker for a straightforward full-range upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50-Watt RMS Per Speaker:\u003c\/strong\u003e Supports amplifier or receiver matching within the stated continuous power rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.75-Inch Titanium Tweeters:\u003c\/strong\u003e Reproduce high frequencies with a dome-tweeter design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWideSphere Technology:\u003c\/strong\u003e Promotes broader off-axis high-frequency dispersion inside a vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulp\/Bamboo Fiber Cone:\u003c\/strong\u003e Uses a lightweight cone material for bass and midrange reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 2-Way Crossover:\u003c\/strong\u003e Directs frequency ranges to the woofer and tweeter within each speaker.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RK1-169 uses a craft-pulp and bamboo-fiber woofer cone with a butyl-rubber surround, a Kapton voice-coil former, and a red woven fiber cotton\/poly-blend spider. Its PA66 composite basket is reinforced with 30% glass fiber. Molded polymer sealing gaskets and high-temperature adhesives are also part of the speaker construction.\u003c\/p\u003e\u003cp\u003eConfirm vehicle-specific fitment before purchase, including the 8.715 x 5.838-inch cutout requirement and approximately 2 15\/16-inch top-mount depth. Observe positive and negative terminal polarity, secure wiring away from moving parts, and verify window or panel clearance before final mounting. The package includes grilles, mounting screws, speed clips, a template, and installation documentation; vehicle-specific harness adapters are not listed.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633163886662,"sku":"RK1-169","price":167.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/715LOulp0aL.jpg?v=1784407589"},{"product_id":"mb-quart-rw-108a-8-powered-under-seat-subwoofer","title":"MB Quart RW-108A 8\" Powered Under-Seat Subwoofer","description":"\u003cp\u003eThe MB Quart RW-108A is a compact powered subwoofer enclosure designed to add low-frequency support where conventional subwoofer boxes will not fit. Its slim under-seat form factor is suited to vehicles with limited cabin or cargo space. The integrated amplifier keeps the installation focused on one enclosure rather than separate subwoofer and amplifier components.\u003c\/p\u003e\u003cp\u003eThis model uses an 8-inch, 4-ohm subwoofer in a self-contained enclosure and carries a 600-watt maximum-power listing. It is intended for car-audio systems that need more bass presence than factory speakers typically provide. The compact format makes it a practical option for cars, trucks, RVs, and similar vehicle applications when clearance is available.\u003c\/p\u003e\u003cp\u003eSignal connection flexibility helps the RW-108A work with a range of source units. It provides RCA low-level inputs for aftermarket receivers with preamp outputs, along with a high-level input for systems using speaker-level signal. A remote turn-on terminal and selectable auto-turn-on function support different installation approaches.\u003c\/p\u003e\u003cp\u003eOnboard adjustment controls let the installer tailor the enclosure to the rest of the system. Input-level, bass-boost, and low-pass-filter controls help blend the subwoofer with full-range speakers, while the 0\/180-degree phase switch can assist with bass integration. Power and protect indicators provide at-a-glance operating-status feedback.\u003c\/p\u003e\u003cp\u003eA wired bass-level remote is included for convenient adjustment from the cabin. This makes it easier to reduce output for everyday listening or raise it when program material calls for more low-end reinforcement. The RW-108A is best used as a compact bass upgrade in a properly fused 12-volt vehicle-audio installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-Inch Powered Subwoofer:\u003c\/strong\u003e Combines a compact woofer and built-in amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim Under-Seat Format:\u003c\/strong\u003e Helps conserve usable vehicle cabin and cargo space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600-Watt Maximum Rating:\u003c\/strong\u003e Provides the product's advertised maximum power specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports speaker-level wiring or RCA preamp connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass-Level Remote:\u003c\/strong\u003e Lets you adjust subwoofer output from the cabin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Integration Controls:\u003c\/strong\u003e Includes gain, bass boost, low-pass, and phase settings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RW-108A uses a low-profile black enclosure with an integrated amplifier section and a protective grille over the woofer. Its compact layout places power, signal, remote-control, and adjustment connections together on the enclosure. Power and protect LEDs, an integrated fuse, and accessible tuning controls support routine setup and troubleshooting.\u003c\/p\u003e\u003cp\u003eMount the enclosure securely on a flat surface with adequate ventilation and without obstructing vehicle controls, seat movement, or safety equipment. Connect it to fused 12-volt power, a solid chassis ground, and either RCA or speaker-level signal; use the REM terminal or the auto-turn-on setting as appropriate for the source unit. Set gain conservatively, then use the low-pass filter and phase control to blend bass with the vehicle's main speakers.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633164640326,"sku":"RW-108A","price":253.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/81WFSzZqDzL.jpg?v=1784407659"},{"product_id":"mb-quart-rw-110a-10-powered-under-seat-subwoofer","title":"MB Quart RW-110A 10\" Powered Under-Seat Subwoofer","description":"\u003cp\u003eThe MB Quart RW-110A is a compact active subwoofer enclosure designed to add bass where a conventional large subwoofer box is impractical. Its low-profile under-seat format helps conserve cargo space while combining a 10-inch subwoofer and built-in mono amplifier in one unit. It is suited to vehicle audio upgrades in cars, RVs, and ATVs where installation space is limited.\u003c\/p\u003e\u003cp\u003eThis powered enclosure uses a 10-inch, 4-ohm dual-voice-coil subwoofer with a manufacturer-listed 150-watt RMS power handling rating and 800-watt peak rating. The integrated one-channel Class A\/B amplifier is rated at up to 800 watts maximum. Its sound controls allow the bass output to be adjusted for the vehicle, source unit, and front-speaker system.\u003c\/p\u003e\u003cp\u003eA variable 50-150 Hz low-pass crossover helps blend the subwoofer with full-range speakers by limiting its upper-frequency output. Variable bass boost from 0-12 dB and phase adjustment from 0-180 degrees provide additional setup flexibility. The included wired bass remote gives the driver a convenient way to adjust bass level from the cabin.\u003c\/p\u003e\u003cp\u003eThe RW-110A accepts either RCA-level signals or high-level speaker inputs. This makes it usable with many aftermarket receivers as well as factory audio systems that do not provide RCA preamp outputs. Its 0.2-9V variable input sensitivity supports matching the amplifier to different source-output levels.\u003c\/p\u003e\u003cp\u003eMB Quart uses a pressure-treated foam surround, poly-cotton spider, vented aluminum voice-coil former, and a vented motor assembly in the subwoofer design. The amplifier section includes a QTD aluminum heat sink and pulse-width-modulated power supply. Together with its built-in protection-status indicators, these features support a compact all-in-one bass upgrade path.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Inch Active Enclosure:\u003c\/strong\u003e Combines a subwoofer and built-in amplifier in one compact unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder-Seat Format:\u003c\/strong\u003e Helps add bass while preserving usable vehicle cargo space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Input Options:\u003c\/strong\u003e RCA and high-level inputs support aftermarket and factory systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Crossover:\u003c\/strong\u003e Adjusts the crossover point from 50 to 150 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Remote:\u003c\/strong\u003e Lets you adjust bass level from a mounted control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Protection Indicators:\u003c\/strong\u003e Lighted diagnostics monitor overload and speaker-short protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe RW-110A has a black enclosure with a built-in protective mesh grille over its round 10-inch driver. Its subwoofer construction includes a heavy-duty powder-coated steel frame, pressure-treated foam surround, poly-cotton spider, high-temperature cone adhesive, and vented aluminum voice-coil former. The integrated amplifier uses an aluminum QTD heat sink, while nickel-plated brass terminals and screw-down connectors are specified for its connections.\u003c\/p\u003e\u003cp\u003eVerify available clearance at the intended mounting location before purchase and mount the enclosure securely so it cannot shift while driving. Connect power and ground through the unit's 8 AWG terminals, use the specified 15-amp fuse protection, and choose RCA or high-level signal input according to the source unit. Set input level, low-pass crossover, bass boost, and phase after installation, then place the wired bass remote where it can be reached safely.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633164673094,"sku":"RW-110A","price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/81WFSzZqDzL_37e14788-a8e3-4569-8fb8-f338c275ebb2.jpg?v=1784407700"},{"product_id":"mb-quart-xk1-116-6-5-2-way-coaxial-car-speakers","title":"MB Quart XK1-116 6.5\" 2-Way Coaxial Car Speakers","description":"\u003cp\u003eThe MB Quart XK1-116 is a pair of 6.5-inch, 2-way coaxial car speakers designed to replace worn or basic factory door, dash, or rear-deck speakers. Each speaker combines a midrange\/woofer and tweeter in one assembly, helping simplify a conventional speaker upgrade. They use a 4-ohm design compatible with many factory and aftermarket car-audio systems.\u003c\/p\u003e\u003cp\u003eThis X-Line Series model is rated for 40 watts RMS and 80 watts peak power per speaker. For the pair, that equals 80 watts RMS and 160 watts peak handling. Its 55 Hz to 32 kHz frequency-response specification supports broad musical playback from lower midbass through high-frequency detail.\u003c\/p\u003e\u003cp\u003eA 20 mm pure titanium dome tweeter handles upper-frequency reproduction, while the woofer uses a mica-filled polypropylene cone. The tweeter includes an aluminum voice coil and nylon surround. A UV butyl rubber surround supports the woofer cone during normal operation.\u003c\/p\u003e\u003cp\u003eThe XK1-116 uses a PA66 composite basket reinforced with glass fiber, along with a bumped cotton spider. An internal crossover is housed in the tweeter post to divide high-frequency content from the midrange\/woofer section. The specified 12 dB-per-octave high-pass crossover design helps support the coaxial speaker layout.\u003c\/p\u003e\u003cp\u003eThese speakers are suited to vehicles that accept 6.5-inch speakers and have adequate mounting clearance. Their 5.59-inch cutout requirement and 2.4-inch chassis depth should be checked against the vehicle before purchase. They can be used with a compatible factory radio or an aftermarket amplifier that is appropriate for their 4-ohm, 40-watt RMS-per-speaker rating.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Coaxial Design:\u003c\/strong\u003e Combines woofer and tweeter in each speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40W RMS Per Speaker:\u003c\/strong\u003e Handles 80 watts RMS per pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 mm Titanium Dome Tweeter:\u003c\/strong\u003e Reproduces upper-frequency information in a compact assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMica-Filled Polypropylene Cone:\u003c\/strong\u003e Provides a durable woofer cone material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal 12 dB Crossover:\u003c\/strong\u003e Directs high frequencies through the coaxial system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePA66 Composite Basket:\u003c\/strong\u003e Uses glass-fiber reinforcement for the speaker frame.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK1-116 combines a mica-filled polypropylene woofer cone with a UV butyl rubber surround, a bumped cotton spider, and a PA66 composite basket with glass-fiber reinforcement. Its titanium dome tweeter uses an aluminum voice coil and nylon surround. The crossover is integrated into the tweeter post, keeping the coaxial design self-contained.\u003c\/p\u003e\u003cp\u003eVerify a 5.59-inch mounting cutout and at least 2.4 inches of chassis depth from the mounting flange before installation. The Euro-DIN-style mounting brackets and holes are intended to accommodate OEM and custom midrange mounting locations, while spade push-on terminals allow crimped connections or direct soldering. Use proper polarity and match the speakers to a 4-ohm audio system.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165033542,"sku":"XK1-116","price":85.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71llCXPqqfL.jpg?v=1784407742"},{"product_id":"mb-quart-xk2-106-2-75-2-way-coaxial-speakers","title":"MB Quart XK2-106 2.75\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-106 is a compact pair of 2.75-inch coaxial 2-way speakers for car audio and powersports applications. It is designed for installations where available speaker space is limited but a full-range speaker upgrade is still needed. The package includes two speakers for use in a matched left\/right or custom-system installation.\u003c\/p\u003e\u003cp\u003eIts small footprint makes the XK2-106 suited to compact factory locations, custom panels, and other space-conscious vehicle audio projects. The 4-ohm nominal impedance supports use with compatible car-audio receivers or amplifiers. Before purchasing, confirm available mounting space and the load capability of the audio source.\u003c\/p\u003e\u003cp\u003eThe XK2-106 is rated for 70 watts RMS and 140 watts maximum power handling. Its published frequency response spans 55 Hz to 22 kHz, covering bass, midrange, and high-frequency content within a compact coaxial format. A 92 dB sensitivity rating supports efficient output when matched with an appropriate audio system.\u003c\/p\u003e\u003cp\u003eA black aluminum dome tweeter is integrated into the coaxial speaker design to reproduce high-frequency detail from the same mounting location as the main driver. The speaker uses a steel basket for structural support. This combination is intended for vehicle environments where compact packaging and durable construction are important.\u003c\/p\u003e\u003cp\u003eFor a simple compact upgrade, the XK2-106 can be used where a small full-range speaker is required in a car or powersports audio system. Its coaxial 2-way layout keeps the woofer and tweeter together rather than requiring separate tweeter locations. Pair it with compatible wiring, mounting hardware, and a source unit or amplifier that is suitable for 4-ohm speakers.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.75-Inch Size:\u003c\/strong\u003e Fits compact speaker locations and custom installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoaxial 2-Way Design:\u003c\/strong\u003e Combines main-driver and tweeter output in one speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70W RMS Handling:\u003c\/strong\u003e Supports continuous-power system matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e140W Maximum Handling:\u003c\/strong\u003e Provides published peak power capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Aluminum Dome Tweeter:\u003c\/strong\u003e Handles the speaker's high-frequency reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel Basket:\u003c\/strong\u003e Provides a rigid foundation for the speaker assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-106 combines a black aluminum dome tweeter with a steel basket in a compact coaxial speaker assembly. The 2-way layout places the high-frequency element within the same speaker structure as the primary driver. This design helps simplify placement where there is room for only one small speaker location.\u003c\/p\u003e\u003cp\u003eMeasure the factory opening, mounting depth, cutout, and panel clearance before ordering, as those dimensions are not published in the confirmed product information. Use suitable mounting hardware and connect each speaker with correct polarity to a compatible 4-ohm receiver or amplifier channel. The pair is intended for car and powersports audio installations; confirm that the chosen location is appropriate for the vehicle and installation conditions.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165295686,"sku":"XK2-106","price":26.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71z9SZhci0L.jpg?v=1784407782"},{"product_id":"mb-quart-xk2-108-3-5-2-way-coaxial-speakers","title":"MB Quart XK2-108 3.5\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-108 is a pair of 3.5-inch 2-way coaxial car speakers designed for compact factory speaker locations. It is intended for drivers looking to replace worn or limited-range small speakers in a vehicle audio system. The coaxial format combines the speaker elements into a space-conscious assembly suited to small mounting positions.\u003c\/p\u003e\u003cp\u003eThis speaker system is rated for 70 watts RMS and 140 watts peak power per pair. Those pair-level ratings help shoppers match the speakers with an appropriate source unit or amplifier after confirming system compatibility. The compact format makes the XK2-108 a practical option where a larger replacement speaker is not possible.\u003c\/p\u003e\u003cp\u003eMB Quart lists an 88 dB sensitivity and a 55 Hz to 22 kHz frequency response for the XK2-108. This range is designed to cover midrange and high-frequency content within a small speaker location. For a system with greater low-frequency output, these speakers can be used alongside a properly matched subwoofer system.\u003c\/p\u003e\u003cp\u003eThe XK2-108 uses a 2-way coaxial design to place multiple frequency-producing elements in one speaker assembly. This approach simplifies installation compared with systems that require separate tweeter mounting locations. It is useful for vehicle locations that have limited space behind a grille or dashboard panel.\u003c\/p\u003e\u003cp\u003eBefore purchase, compare the vehicle's factory opening with the specified 3.41-inch cutout requirement and verify rear clearance for the 1.5-inch mounting depth from the flange. Confirm connector style, mounting-hole alignment, polarity, and available space behind the panel before installation. Vehicle-specific brackets, adapters, wiring harnesses, or spacers may be needed depending on the application.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5-Inch Speaker Size:\u003c\/strong\u003e Fits compact speaker locations where space is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Coaxial Layout:\u003c\/strong\u003e Combines speaker elements in one mounting assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70W RMS Per Pair:\u003c\/strong\u003e Provides a continuous power-handling reference for system matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e140W Peak Per Pair:\u003c\/strong\u003e Indicates the listed short-term maximum power rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB Sensitivity:\u003c\/strong\u003e Supplies a published efficiency reference for comparison.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz–22 kHz Response:\u003c\/strong\u003e Covers a broad stated range for small car speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-108 is built as a compact coaxial speaker system with a 3.5-inch nominal diameter. MB Quart describes the construction as using high-quality materials for durability and reliability, but detailed cone, surround, magnet, and voice-coil specifications are not published in the confirmed product information. Its integrated 2-way layout is designed to keep the installation footprint compact.\u003c\/p\u003e\u003cp\u003eUse the 3.41-inch cutout diameter and 1.5-inch depth from the flange as starting points when checking fitment. Measure the opening, mounting-hole pattern, and clearance to HVAC ducts, window mechanisms, trim, or other components before installing. The listing does not confirm included mounting hardware, adapters, grilles, or wiring harnesses, so plan for vehicle-specific parts if required.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165459526,"sku":"XK2-108","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/713Epdw-I7L.jpg?v=1784407839"},{"product_id":"mb-quart-xk2-113-5-25-2-way-coaxial-speakers","title":"MB Quart XK2-113 5.25\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-113 is a pair of 5.25-inch, 2-way coaxial car speakers designed to replace or upgrade compatible factory speaker locations. Its compact fitment helps address the common need for better sound from vehicles with limited door or dash speaker space. With a 4-ohm impedance, the pair is intended for use with typical car-audio speaker outputs.\u003c\/p\u003e\u003cp\u003eThese speakers suit drivers looking for a straightforward upgrade path without moving to a separate-component speaker system. The coaxial configuration combines the system's two-way design into each speaker assembly, helping simplify installation where a standard 5.25-inch speaker location is available. Confirm vehicle opening size and behind-panel clearance before purchase.\u003c\/p\u003e\u003cp\u003eThe XK2-113 is rated for 90 watts RMS and 180 watts peak power per pair. Its published 88 dB sensitivity and 55 Hz to 22 kHz frequency response describe a broad operating range for everyday music, spoken-word audio, and general in-car listening. Power matching should be based on the RMS rating rather than the peak rating.\u003c\/p\u003e\u003cp\u003eMB Quart specifies a 4.48-inch cutout requirement and a 2-inch mounting depth from the flange. Those measurements make this model a practical option when space behind the mounting surface is limited. The 5.25-inch size is commonly used in compact factory speaker positions, but fitment varies by vehicle.\u003c\/p\u003e\u003cp\u003eFor a complete system upgrade, the XK2-113 pair can be connected to a compatible head unit or external amplifier with 4-ohm speaker outputs. Correct positive-to-positive and negative-to-negative wiring helps preserve proper stereo phase. Use secure mounting and protected wiring to support reliable operation in a vehicle environment.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.25-Inch Size:\u003c\/strong\u003e Fits compatible compact vehicle speaker locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Coaxial Design:\u003c\/strong\u003e Integrates the two-way speaker system in each assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90-Watt RMS Rating:\u003c\/strong\u003e Provides a realistic power-matching reference for the pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e180-Watt Peak Rating:\u003c\/strong\u003e Indicates short-term maximum power handling for the pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB Sensitivity:\u003c\/strong\u003e Supports efficient output with compatible car-audio power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Impedance:\u003c\/strong\u003e Matches common car stereo and amplifier speaker outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-113 is specified as a 5.25-inch coaxial speaker system with a flush-mount installation style. Available product information describes it as a durable design, while detailed cone, surround, magnet, and voice-coil material specifications are not published. The speakers are listed in a black finish and as a pair.\u003c\/p\u003e\u003cp\u003eMeasure the vehicle opening against the 4.48-inch cutout diameter and verify at least 2 inches of mounting depth from the flange. Connect each speaker with correct polarity to a compatible 4-ohm head unit or amplifier channel, and avoid exceeding the 90-watt RMS rating per pair. Mounting hardware, adapters, and vehicle-specific wiring harnesses should be selected as needed for the installation.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165492294,"sku":"XK2-113","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71i_9I0isDL.jpg?v=1784407879"},{"product_id":"mb-quart-xk2-116-6-5-2-way-coaxial-speakers","title":"MB Quart XK2-116 6.5\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-116 is a pair of 6.5-inch, 2-way coaxial car speakers designed for replacing or upgrading compatible factory door speakers. Its coaxial layout combines the woofer and tweeter in each speaker, helping simplify installations where a separate tweeter location is not available. This makes it a practical option for vehicle owners seeking a straightforward full-range speaker upgrade.\u003c\/p\u003e\u003cp\u003eThe XK2-116 is rated at 120 watts RMS and 240 watts peak power per pair. With 88 dB sensitivity and a 55 Hz to 22 kHz frequency response, it is specified to cover bass, midrange, and high-frequency information within a typical car-audio speaker system. The 4-ohm impedance suits many conventional automotive speaker circuits.\u003c\/p\u003e\u003cp\u003eEach speaker uses a coaxial 2-way configuration with a centrally mounted bullet-style tweeter. This arrangement is intended to reproduce high frequencies from the same mounting location as the 6.5-inch woofer. A neodymium magnet is also specified for the speaker design.\u003c\/p\u003e\u003cp\u003eFor fitment, the XK2-116 has a 5.59-inch cutout requirement and a 2.13-inch mounting depth measured from the flange. Those dimensions are important when checking clearance behind a factory door panel, rear deck, or custom speaker location. The speakers are specified for door mounting, but vehicle-specific fitment should be verified before purchase.\u003c\/p\u003e\u003cp\u003eThe XK2-116 can be used as part of a factory-speaker replacement project or alongside a compatible aftermarket car-audio system. Included speaker wire supports basic installation, while vehicle-specific adapters, mounting hardware, and harnesses may still be needed depending on the application. Match the speakers to a compatible 4-ohm source or amplifier and confirm mounting measurements before installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Coaxial Design:\u003c\/strong\u003e Combines woofer and tweeter functions in each speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Configuration:\u003c\/strong\u003e Supports full-range reproduction from a single mounting location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120W RMS Per Pair:\u003c\/strong\u003e Provides a stated continuous power-handling reference for system matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Impedance:\u003c\/strong\u003e Fits many standard automotive speaker-output configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz–22 kHz Response:\u003c\/strong\u003e Covers a broad stated range for music playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeodymium Magnet:\u003c\/strong\u003e Uses a specified neodymium-magnet speaker motor design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-116 has a black-and-red automotive speaker design with a centrally positioned bullet-style tweeter and a neodymium magnet. Its coaxial construction places the high-frequency driver within the woofer assembly, reducing the need for a separate tweeter mount. The speaker is intended for car-audio use and door-mount applications.\u003c\/p\u003e\u003cp\u003eCheck that the vehicle accepts a 6.5-inch speaker, provides at least 2.13 inches of depth behind the mounting surface, and accommodates a 5.59-inch cutout. Use the included speaker wire as appropriate, and plan for vehicle-specific mounting adapters, fasteners, or wiring harnesses if the factory installation requires them. Verify polarity and use a compatible 4-ohm source or amplifier when connecting the speakers.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165590598,"sku":"XK2-116","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71nb0CtUm9L.jpg?v=1784407935"},{"product_id":"mb-quart-xk2-116s-6-5-slim-mount-coaxial-speakers","title":"MB Quart XK2-116S 6.5\" Slim-Mount Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-116S is a pair of 6.5-inch, 2-way coaxial car speakers designed for vehicle audio upgrades where mounting clearance is limited. Its slim-mount format is intended to help fit locations that cannot accommodate a deeper conventional speaker. The system combines a woofer and tweeter in each speaker for a straightforward full-range replacement or upgrade.\u003c\/p\u003e\u003cp\u003eRated at 120 watts RMS and 240 watts peak per pair, the XK2-116S is suited to systems with power matched to its published continuous rating. Its 88 dB sensitivity and 55 Hz to 22 kHz frequency-response specification describe the product's stated operating range. These specifications make it a practical option for listeners seeking a compact coaxial speaker set for everyday music, spoken-word, and general in-car listening.\u003c\/p\u003e\u003cp\u003eThe 2-way coaxial layout places the high-frequency driver within the main speaker assembly, reducing the need to find a separate tweeter location. This can simplify an upgrade when replacing factory door, rear-deck, or other 6.5-inch speaker positions. The shallow profile is the central design consideration for installations with restricted depth behind the mounting surface.\u003c\/p\u003e\u003cp\u003eInstallation planning should account for the published 5.59-inch cutout diameter and 1.65-inch mounting depth from the flange. Vehicle-specific fitment can still vary based on factory brackets, window clearance, panel shape, and connector style. Confirm available depth and mounting-hole alignment before purchasing or beginning installation.\u003c\/p\u003e\u003cp\u003eThe XK2-116S can be used with a compatible factory radio or an aftermarket amplifier, provided the amplifier and wiring are selected appropriately for the speakers. It is a pair-based speaker system, making it suitable for upgrading two matching locations in a vehicle. For a balanced system, consider matching speaker placement and power delivery across the vehicle's front or rear channels.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Speaker Size:\u003c\/strong\u003e Fits many common car-audio speaker locations, subject to vehicle-specific fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Coaxial Design:\u003c\/strong\u003e Combines woofer and tweeter functions in each speaker assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim-Mount Profile:\u003c\/strong\u003e Helps address installations with limited mounting depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120W RMS Per Pair:\u003c\/strong\u003e Provides a published continuous power-handling rating for the set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz–22 kHz Response:\u003c\/strong\u003e Covers the product's stated low-to-high frequency range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB Sensitivity:\u003c\/strong\u003e Indicates the speaker system's published sensitivity rating.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-116S uses a slim-mount 6.5-inch coaxial format with a 2-way speaker arrangement. Published product information confirms its shallow installation focus, but does not specify cone material, surround material, magnet type, voice-coil details, or basket material. Those unlisted construction details should not be assumed when planning a build.\u003c\/p\u003e\u003cp\u003eMeasure the vehicle opening against the 5.59-inch cutout requirement and verify at least 1.65 inches of clearance from the mounting flange. Check for interference from windows, door hardware, grilles, and factory mounting adapters before securing the speakers. Use compatible wiring and an amplifier or radio channel matched appropriately to the speaker system's power rating.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165656134,"sku":"XK2-116S","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/717K6GBXGtL.jpg?v=1784407973"},{"product_id":"mb-quart-xk2-146-4x6-2-way-coaxial-speakers","title":"MB Quart XK2-146 4x6\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-146 is a pair of 4x6-inch, 2-way coaxial speakers for replacing factory vehicle speakers or building a compact car-audio upgrade. It combines a woofer and tweeter into each speaker assembly, helping simplify installation where a factory 4x6-inch opening is available. This format is suited to drivers seeking an updated speaker solution without adding separate external crossovers.\u003c\/p\u003e\u003cp\u003eRated at 90 watts RMS and 180 watts peak per pair, the XK2-146 is intended for systems that need more power capability than a basic factory speaker replacement. Its 88 dB sensitivity and stated 55 Hz to 22 kHz frequency response describe a design made to cover a broad portion of the audible range. Match the speakers with an appropriately rated source unit or amplifier and avoid exceeding their continuous power rating.\u003c\/p\u003e\u003cp\u003eThe 2-way coaxial layout places high-frequency reproduction within the same speaker assembly as the main driver. This can be useful in factory-style locations where there is limited space for separate tweeters. The result is a straightforward speaker upgrade path for compatible dash, door, or rear-deck locations.\u003c\/p\u003e\u003cp\u003eThe XK2-146 uses a compact 4x6-inch footprint for vehicles designed around that common speaker size. Confirmed mounting guidance lists a 5.5 x 3.46-inch cutout requirement and a 3-inch depth from the flange. Measuring the original opening, mounting-hole pattern, and clearance behind the panel remains important before purchase.\u003c\/p\u003e\u003cp\u003eThese speakers can be used as a direct replacement pair or as part of a larger system with an aftermarket receiver or external amplification. They are most appropriate when the installation location accepts their stated dimensions and the system can be configured for their power range. Vehicle-specific adapters, harnesses, and mounting hardware may be needed depending on the application.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x6-Inch Speaker Size:\u003c\/strong\u003e Fits applications designed for compact 4x6-inch speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Coaxial Design:\u003c\/strong\u003e Integrates woofer and tweeter functions in each speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90W RMS Per Pair:\u003c\/strong\u003e Supports systems with appropriately matched continuous power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e180W Peak Per Pair:\u003c\/strong\u003e Provides stated short-term peak power handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz–22 kHz Response:\u003c\/strong\u003e Covers bass, midrange, and high-frequency content.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB Sensitivity:\u003c\/strong\u003e Indicates the stated efficiency rating for the pair.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-146 is a compact coaxial speaker system built for automotive use. Confirmed listing information describes durable, high-quality construction, but does not identify specific cone, surround, tweeter, basket, magnet, or voice-coil materials. Its integrated 2-way layout keeps the installation format simple for locations that do not accommodate separate component speakers.\u003c\/p\u003e\u003cp\u003eBefore installation, verify that the vehicle has a compatible 4x6-inch speaker location, a 5.5 x 3.46-inch cutout, and at least 3 inches of clearance from the mounting flange. Check mounting-hole alignment and connector compatibility, since adapters or a vehicle-specific wiring harness may be required. For amplified systems, set gain conservatively and match power delivery to the 90-watt RMS-per-pair rating.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633165787206,"sku":"XK2-146","price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/616fLwwkaXL.jpg?v=1784408008"},{"product_id":"mb-quart-xk2-168-5x7-6x8-inch-coaxial-speakers","title":"MB Quart XK2-168 5x7\/6x8-Inch Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-168 is a pair of 5x7\/6x8-inch two-way coaxial car speakers designed for replacing compatible factory door speakers. Its dual-size fit is intended to help simplify upgrades in vehicles that use either 5x7-inch or 6x8-inch speaker openings. The system is suited to drivers seeking a straightforward full-range speaker upgrade without moving to a separate-component design.\u003c\/p\u003e\u003cp\u003eRated at 100 watts RMS and 200 watts peak power per pair, the XK2-168 is designed to work with an appropriately matched car-audio system. The published 55Hz-22kHz frequency response covers bass, midrange, and high-frequency content within a single coaxial assembly. An 88dB sensitivity rating provides a useful reference point when matching the speakers with a head unit or external amplifier.\u003c\/p\u003e\u003cp\u003eThis is a two-way coaxial speaker system, meaning its drivers are integrated into each speaker assembly. That layout keeps the installation focused on replacing a compatible existing speaker location rather than adding separate tweeter mounting positions. It can be a practical choice for door-speaker upgrades where space and installation simplicity matter.\u003c\/p\u003e\u003cp\u003eThe XK2-168 is specified for both 5x7-inch and 6x8-inch openings, giving it flexibility across compatible vehicle applications. Its published 5.67-inch cutout diameter and 2.13-inch mounting depth from the flange should be checked against the vehicle's available opening and window clearance before installation. Confirming these dimensions in advance helps avoid fitment issues behind the door panel.\u003c\/p\u003e\u003cp\u003eFor a balanced upgrade, pair the speakers with a source unit or amplifier whose power delivery is appropriate for the 100-watt RMS-per-pair rating. They are intended for wired car-audio use and can serve as replacements for factory speakers in compatible locations. Vehicle-specific mounting adapters, harnesses, or hardware may be needed depending on the factory installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Size Fit:\u003c\/strong\u003e Fits compatible 5x7-inch and 6x8-inch speaker openings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Way Coaxial Design:\u003c\/strong\u003e Integrates drivers into each speaker assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100W RMS Per Pair:\u003c\/strong\u003e Supports appropriately matched car-audio power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200W Peak Per Pair:\u003c\/strong\u003e Provides published short-term peak handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55Hz-22kHz Response:\u003c\/strong\u003e Covers a wide published frequency range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Mounting Profile:\u003c\/strong\u003e Uses a 5.67-inch cutout and 2.13-inch depth.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-168 uses a coaxial layout in a compact 5x7\/6x8-inch form factor. Published product information describes the speakers as built with high-quality materials, but does not identify the cone, surround, tweeter, magnet, or voice-coil materials. The design is intended for durable use in a vehicle audio installation.\u003c\/p\u003e\u003cp\u003eBefore ordering, compare the vehicle's factory speaker opening, cutout clearance, and available mounting depth with the published 5.67-inch cutout diameter and 2.13-inch depth from the flange. Use compatible vehicle-specific brackets or wiring adapters when required by the factory door location. Match the system's amplification appropriately and follow the vehicle and audio equipment installation instructions.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633167196230,"sku":"XK2-168","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61tibKxNCXL.jpg?v=1784408044"},{"product_id":"mb-quart-xk2-169-6x9-2-way-coaxial-speakers","title":"MB Quart XK2-169 6x9\" 2-Way Coaxial Speakers","description":"\u003cp\u003eThe MB Quart XK2-169 is a pair of 6x9-inch, 2-way coaxial car speakers intended for upgrading compatible factory or aftermarket vehicle speaker locations. It combines the woofer and high-frequency drivers into each speaker assembly, providing a space-efficient full-range replacement option. The published 150-watt RMS and 300-watt peak power ratings apply per pair.\u003c\/p\u003e\u003cp\u003eThese speakers are suited to listeners who want to replace worn factory 6x9-inch speakers or build a straightforward aftermarket system around a compatible head unit or external amplifier. Their 88 dB sensitivity and published 55 Hz-22 kHz frequency response describe their operating range and efficiency rating. Vehicle fitment should always be confirmed against the available mounting opening and depth before purchase.\u003c\/p\u003e\u003cp\u003eThe XK2-169 is specified as a 2-way coaxial system, placing multiple drivers within the same 6x9-inch speaker footprint. This format can simplify an upgrade where separate tweeter locations or external crossover mounting are not desired. It is designed for use in automotive audio applications.\u003c\/p\u003e\u003cp\u003ePublished crossover information lists 12 dB slopes at 1 kHz and 3 kHz. This crossover design is intended to divide frequency reproduction among the drivers in the coaxial assembly. Pairing the speakers with properly matched amplification and clean source signal is important for practical system setup.\u003c\/p\u003e\u003cp\u003eFor installation planning, the published cutout requirement is 8.64 by 5.98 inches, with a mounting depth of 3.35 inches measured from the flange. These measurements are useful starting points, but door panels, rear decks, grilles, adapters, and window mechanisms can vary by vehicle. Confirm clearance, mounting-hole alignment, and wiring polarity before installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6x9-Inch Coaxial Format:\u003c\/strong\u003e Fits compatible 6x9-inch automotive speaker locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Way Speaker System:\u003c\/strong\u003e Integrates low- and high-frequency drivers in each speaker.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e150W RMS Per Pair:\u003c\/strong\u003e Supports systems matched to its published continuous rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300W Peak Per Pair:\u003c\/strong\u003e Provides the published short-duration peak handling figure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz-22 kHz Response:\u003c\/strong\u003e Covers a published range from bass through treble.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 dB Crossover Slopes:\u003c\/strong\u003e Published at 1 kHz and 3 kHz.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XK2-169 uses a coaxial speaker layout in a nominal 6x9-inch frame. MB Quart describes the speakers as constructed with high-quality materials, though specific cone, surround, voice-coil, and magnet materials are not publicly confirmed for this exact model. The integrated-driver design is intended to keep the installation concentrated in a single speaker opening.\u003c\/p\u003e\u003cp\u003eCheck that the vehicle supports a 6x9-inch replacement speaker and verify the published 8.64 by 5.98 inch cutout and 3.35 inch flange-depth requirement against the actual location. Use appropriate vehicle-specific brackets, wiring adapters, and fasteners where required; these items are not confirmed as included. Match the source or amplifier output appropriately to the speaker system and observe correct positive and negative terminal polarity during wiring.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633167523910,"sku":"XK2-169","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71N12pJBq3L.jpg?v=1784408083"},{"product_id":"mb-quart-xs2-216-6-5-2-way-component-speakers","title":"MB Quart XS2-216 6.5\" 2-Way Component Speakers","description":"\u003cp\u003eThe MB Quart XS2-216 is a 6.5-inch, 2-way component speaker system made for upgrading a vehicle’s factory door-speaker setup. It uses separate speaker-system components and a passive crossover network to divide the audio signal between frequency ranges. This approach is suited to listeners who want a more deliberate front-stage installation than a conventional full-range speaker pair.\u003c\/p\u003e\u003cp\u003eWith 120 watts RMS and 240 watts peak power handling per pair, the XS2-216 is designed for use with compatible car-audio amplification or a suitably powered receiver. Its 88 dB sensitivity supports practical output in a range of vehicle systems. Match amplifier power and gain settings carefully to help avoid audible distortion or speaker damage.\u003c\/p\u003e\u003cp\u003eThe specified 55 Hz to 22 kHz frequency response covers mid-bass, midrange, and high-frequency duties expected from a 2-way component set. A 4 kHz crossover point with a 12 dB slope separates the applicable frequency ranges within the system. The result is a component-based layout intended to keep the system’s woofer and tweeter duties organized.\u003c\/p\u003e\u003cp\u003eThe XS2-216 is intended for car-audio installations where a 6.5-inch speaker format is appropriate. Its 5.59-inch cut-out requirement and 2.24-inch mounting depth are important measurements to check before ordering. Confirm available door-panel clearance, window-track clearance, and mounting-hole compatibility for the specific vehicle.\u003c\/p\u003e\u003cp\u003eThis system can serve as a front-speaker upgrade in a vehicle audio build, particularly when paired with a compatible amplifier and properly installed crossover network. Careful tweeter placement can help tailor the perceived listening position, while the woofer typically fits in a suitable door or panel location. Professional installation can be useful when factory trim, wiring access, or custom mounting is involved.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.5-Inch Component Format:\u003c\/strong\u003e Designed for vehicle installations using a common 6.5-inch speaker size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 Watts RMS Per Pair:\u003c\/strong\u003e Provides a continuous power-handling reference for amplifier matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240 Watts Peak Per Pair:\u003c\/strong\u003e Accommodates short-duration musical peaks within the stated rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 Hz–22 kHz Response:\u003c\/strong\u003e Covers the specified operating range from mid-bass through treble.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e88 dB Sensitivity:\u003c\/strong\u003e Indicates the system’s stated efficiency rating at the published measurement standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 kHz 12 dB Crossover:\u003c\/strong\u003e Splits frequency duties between the component-system drivers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe XS2-216 uses a compact 6.5-inch component-speaker design intended for automotive use. Published product information describes the system as having durable construction, but does not provide confirmed cone, surround, tweeter-dome, basket, or magnet-material specifications. The separate component configuration is designed around woofer, tweeter, and crossover functions rather than a single coaxial driver assembly.\u003c\/p\u003e\u003cp\u003eVerify the 5.59-inch cut-out diameter and 2.24-inch mounting depth against the intended installation location before purchase. Install the crossover network in a secure, dry location and maintain correct positive and negative polarity at every connection. Use amplifier power compatible with the published 120-watt RMS-per-pair rating, and set gains conservatively after installation.\u003c\/p\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45633167556678,"sku":"XS2-216","price":87.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71v5B4Un_FL.jpg?v=1784408138"}],"url":"https:\/\/audiowatt.store\/collections\/mb-quart.oembed","provider":"Audio Watt Store","version":"1.0","type":"link"}