{"product_id":"crunch-cra-1500-4-four-channel-class-d-car-amplifier","title":"Crunch CRA-1500.4 Four-Channel Class D Car Amplifier","description":"\u003cp\u003eThe Crunch CRA-1500.4 is a four-channel Class D car audio amplifier for adding external power to a speaker system or building a mixed speaker-and-subwoofer setup. It provides four amplified channels and supports bridged operation when a system calls for higher power on fewer channels. Its combination of RCA and high-level inputs makes it suitable for both aftermarket receivers and many factory-audio integration projects.\u003c\/p\u003e\u003cp\u003eThis amplifier is designed for users powering front and rear speakers, high-output component systems, or selected bridged-channel configurations. It is rated for 4 x 185 watts at 4 ohms, 4 x 375 watts at 2 ohms, or 2 x 750 watts bridged at 4 ohms. The 2-ohm stereo minimum and 4-ohm bridged minimum should be observed when matching speakers and wiring the system.\u003c\/p\u003e\u003cp\u003eThe CRA-1500.4 uses a Class D topology intended to provide efficient power delivery in a compact format. Its low-noise preamplifier circuit is designed to accept low-voltage source signals while minimizing distortion through the amplification stage. A 10 Hz to 30 kHz frequency response and adjustable crossover controls support use with full-range speakers or appropriately configured subwoofer channels.\u003c\/p\u003e\u003cp\u003eCrunch equips the amplifier with a switch-mode power supply and proprietary SPEED-FET MOSFET output devices. The SMPS is intended to maintain stable power delivery as vehicle voltage changes, while the output-stage design focuses on efficiency. Quick Thermal Dispersion Technology adds aluminum heat-sink mass to help manage operating heat.\u003c\/p\u003e\u003cp\u003eFor system flexibility, the amplifier includes fully adjustable 12 dB-per-octave high-pass and low-pass crossovers from 40 Hz to 400 Hz. It can operate in four-channel stereo, dual stereo bridged, stereo plus bridged mono, or dual bridged mono configurations. This makes it a practical option for a staged upgrade when paired with correctly matched speakers, wiring, and source-unit connections.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Design:\u003c\/strong\u003e Powers four speakers while using an efficient amplifier topology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Power Configuration:\u003c\/strong\u003e Supports stereo operation or two 4-ohm bridged channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable 12 dB Crossovers:\u003c\/strong\u003e Helps tailor frequency ranges for speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA And High-Level Inputs:\u003c\/strong\u003e Connects with aftermarket receivers or compatible factory systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch-Mode Power Supply:\u003c\/strong\u003e Supports stable amplifier operation with changing vehicle voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Indicates overload or speaker-short protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CRA-1500.4 has a black finish, an aluminum heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its heat-sink design is intended to add thermal mass, while the terminals are designed for secure, corrosion-resistant connections. A power\/protect LED system provides visible diagnostic feedback at the amplifier.\u003c\/p\u003e\u003cp\u003eUse 4 AWG power and ground wiring at the amplifier terminals, an external 60A fuse, and speaker wire up to 8 gauge at the speaker terminals. Select RCA inputs when the source unit provides preamp outputs, or use the high-level input capability for compatible OEM integration; the unit also supports auto turn-on through its high-level-input arrangement. Set the crossover mode and frequency for the speakers being powered, and do not wire below 2 ohms per stereo channel or 4 ohms when bridged.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45621320876102,"sku":"CRA-1500-4","price":176.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61Q7VBQOlDL.jpg?v=1784371494","url":"https:\/\/audiowatt.store\/products\/crunch-cra-1500-4-four-channel-class-d-car-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}