{"product_id":"crunch-gp-2000-4-4-channel-class-ab-car-amplifier","title":"Crunch GP-2000.4 4-Channel Class AB Car Amplifier","description":"\u003cp\u003eThe Crunch GP-2000.4 Ground Pounder is a four-channel car audio amplifier for powering an upgraded speaker system from a factory or aftermarket source unit. It provides four-channel operation for front and rear speakers, with bridged configurations available when a system needs higher output on paired channels. High-level inputs also make it suitable for installations that retain a factory radio without RCA preamp outputs.\u003c\/p\u003e\u003cp\u003eThis Class A\/B amplifier is rated for 4 x 250 watts at 4 ohms or 4 x 500 watts at 2 ohms. For systems that need paired-channel output, it can be configured for 2 x 1,000 watts bridged at 4 ohms. Its selectable operating arrangements support four-channel stereo, dual stereo bridged, stereo plus bridged mono, or dual bridged mono setups.\u003c\/p\u003e\u003cp\u003eThe GP-2000.4 is designed for installers and enthusiasts building a multi-speaker system with adjustable signal shaping. Variable electronic crossovers help direct suitable frequency ranges to connected speakers, while the built-in bass control and selectable bass boost allow system-level adjustment. Input sensitivity is variable from 0.2 to 9 volts to accommodate a range of source-unit signal levels.\u003c\/p\u003e\u003cp\u003eCrunch uses SPEED-FET MOSFET output devices and a high-energy pulse-width-modulated power supply in this amplifier. Its QTD aluminum heat sink is intended to disperse heat during operation, and the low-noise preamplifier circuit supports a clean signal path from the source unit. LED diagnostics provide visual indication for overload and speaker-short protection.\u003c\/p\u003e\u003cp\u003eFor an upgrade path, the GP-2000.4 can run four speakers independently or be bridged into two higher-output channels at the specified 4-ohm load. RCA inputs support conventional aftermarket head-unit connections, while high-level inputs provide an option for OEM integration. An RCA output can also pass signal to a second amplifier when expanding the system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Design:\u003c\/strong\u003e Powers front and rear speakers from one amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Bridging:\u003c\/strong\u003e Supports two bridged 4-ohm channel pairs when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Electronic Crossovers:\u003c\/strong\u003e Helps tailor frequency ranges for connected speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Inputs:\u003c\/strong\u003e Connects to factory radios without RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQTD Aluminum Heat Sink:\u003c\/strong\u003e Helps disperse heat during normal operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Protection Diagnostics:\u003c\/strong\u003e Indicates overload and speaker-short protection status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe GP-2000.4 has a black and red chassis with an aluminum QTD heat sink, nickel-plated brass connection terminals, and screw-down connectors. Its compact amplifier dimensions are 11.5 inches long, 8 inches wide, and 2.375 inches high. The design also incorporates SPEED-FET MOSFET output components, a low-noise preamplifier circuit, and a pulse-width-modulated power supply.\u003c\/p\u003e\u003cp\u003eMount the amplifier on a secure surface with adequate ventilation and do not install it upside down. The power and ground terminals accept 4 AWG cable, while speaker terminals accept 12 AWG cable; the manufacturer specifies 30A x 2 fusing. Use RCA inputs with compatible preamp outputs, or use the supplied high-level-input harness with a source unit that lacks RCA outputs, and observe the labeled speaker and bridged-output connections.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45624154947654,"sku":"GP-2000-4","price":137.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61feOZ4WLmL.jpg?v=1784373173","url":"https:\/\/audiowatt.store\/products\/crunch-gp-2000-4-4-channel-class-ab-car-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}