Crunch CRA-3000.1 is a high-power mono Class D car amplifier built for strong, efficient bass performance. Delivering up to 3000 watts max output, it uses a high-efficiency switch mode power supply (SMPS) to maintain stable power delivery even as vehicle voltage changes, helping prevent performance dips and protecting your system under load. Designed for flexible installation, it supports both RCA and high-level inputs, making it compatible with aftermarket head units and factory OEM systems. DC signal sense auto turn-on simplifies wiring by eliminating the need for a dedicated remote wire in many setups. A wired bass remote is included, giving you easy in-cabin control over low-frequency output. Fine-tune your sound with a fully adjustable 12dB/octave electronic crossover, variable low-pass filtering, subsonic filter, and built-in bass boost up to +12dB. The Class D topology and proprietary SPEED-FET MOSFET output devices deliver efficient, low-distortion performance while keeping heat under control with a reinforced aluminum heat sink. Whether you're upgrading a daily driver or building a bass-focused system, the CRA-3000.1 delivers serious output in a compact, efficient design. SPECIFICATIONS Amplifier Class: Class D Max Power: 3000W Power @ 1 Ohm: 3000W x 1 Power @ 2 Ohm: 1500W x 1 Power @ 4 Ohm: 750W x 1 Crossover: 12dB/oct electronic, 40Hz–300Hz (LPF) Subsonic Filter: 10Hz–40Hz Bass Boost: 0–12dB Signal to Noise Ratio: -79.9 dBA Frequency Response: 12Hz–316Hz THD: <1.0% Inputs: RCA & High-Level Power Wire Gauge: 4 AWG Speaker Wire Gauge: 8 GA Fusing: External 150A | Crunch | | CRA-3000.1 CRA Series 3000 Watt Mono Block Amplifier 750x1 @ 4OHM, 1500x1 @ 2OHM, 3000x1 @ 1OHM | Black/Gray | Best Buy