{"product_id":"crunch-cra-1500-1-class-d-mono-car-amplifier","title":"Crunch CRA-1500.1 Class D Mono Car Amplifier","description":"\u003cp\u003eThe Crunch CRA-1500.1 is a compact mono car amplifier designed to power a subwoofer system from a single channel. It is intended for vehicle audio upgrades that need dedicated low-frequency amplification rather than additional full-range speaker channels. Its Class D architecture helps keep the amplifier footprint and current consumption lower than many traditional designs.\u003c\/p\u003e\u003cp\u003eThis amplifier provides manufacturer-listed output ratings at 1-, 2-, and 4-ohm loads, allowing it to be matched with a properly wired compatible subwoofer setup. Adjustable low-pass and subsonic filters help focus the amplifier on bass frequencies and tailor the system to the enclosure and speakers being used. A variable bass boost is also provided for controlled low-frequency adjustment.\u003c\/p\u003e\u003cp\u003eThe CRA-1500.1 accepts both RCA and high-level input signals, making it suitable for many aftermarket and factory-radio installations. High-level inputs can simplify integration when a source unit does not provide RCA preamp outputs. DC signal-sensing turn-on is available for installations where a conventional remote turn-on lead is not used.\u003c\/p\u003e\u003cp\u003eCrunch equips the amplifier with a switch-mode power supply and SPEED-FET MOSFET output technology. The design also uses a low-noise preamplifier circuit, intended to support clean signal transfer through the amplification stage. Its rated frequency response of 12Hz to 310Hz is focused on subwoofer-duty applications.\u003c\/p\u003e\u003cp\u003eA wired bass remote is included for convenient adjustment from the driver’s seat. The compact chassis can fit into many amplifier mounting locations, provided there is secure mounting and adequate ventilation. It is a practical choice for a bass-focused system when paired with correctly matched wiring, fusing, and speaker impedance.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Class D Design:\u003c\/strong\u003e Uses one channel for dedicated subwoofer amplification with a compact, efficient layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Load Ratings:\u003c\/strong\u003e Provides manufacturer-listed power ratings at 1, 2, and 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Low-Pass Filter:\u003c\/strong\u003e Lets you set the upper bass range from 40Hz to 300Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonic Filter:\u003c\/strong\u003e Helps reduce ultra-low-frequency output from 10Hz to 40Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA And High-Level Inputs:\u003c\/strong\u003e Supports connection to aftermarket radios and many factory audio systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Wired Bass Remote:\u003c\/strong\u003e Allows convenient bass-level adjustment from a mounted control knob.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe CRA-1500.1 has a black chassis with an aluminum heat sink using Crunch Quick Thermal Dispersion Technology. Nickel-plated brass terminals are used for the power and speaker connections, while screw-down connectors provide hand-tool access. LED diagnostics monitor overload and speaker-short protection conditions.\u003c\/p\u003e\u003cp\u003eMount the amplifier securely on a surface with adequate airflow and do not mount it upside down. Use 4 AWG power and ground wiring, an external 125A fuse, and 8 AWG speaker wire as specified; the power cable should be fused within 18 inches of the battery. Set gain and crossover controls carefully, and match the connected subwoofer wiring to a supported 1-, 2-, or 4-ohm load.\u003c\/p\u003e","brand":"Crunch","offers":[{"title":"Default Title","offer_id":45621255143494,"sku":"CRA-1500-1","price":176.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61YPCFzKJVL.jpg?v=1784371446","url":"https:\/\/audiowatt.store\/products\/crunch-cra-1500-1-class-d-mono-car-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}