Crunch P1-1050.1 - 1000W Max Monoblock Class A/B PowerOne Series Car Amplifier: Features: * PowerOne Series Monoblock Class D Car Amplifier * MAX Power Rating (14.4V) * 4 ohms: 500 watts x 1 chan. * 2 ohms: 1000 watts x 1 chan. * SEPP Class A/B analog amplifier * Pulse Width Modulated MOSFET power supply * LED power (green) and protect (red) indicators * Variable Bass Boost (0 to +12 dB bass boost at 45Hz) * Wired bass remote knob included * Slow un-muted soft start turn-on * Mono channel operation * Preamp RCA outputs to daisy chain multiple amps * 3-Way System Protection circuitry (thermal, overload, and speaker short protection) * Heavy duty aluminum alloy heatsink for extreme heat dissipation * Nickel-plated RCA level inputs * Nickel-plated screw terminals * Input sensitivity: * Level: 200mV-6V * Variable subsonic filter (15-55 Hz, 12 dB/octave) * Variable high-pass filter (40-150 Hz, 12 dB/octave) * Frequency response: 15-150 Hz * Dimensions: 15-15/16"L x 9-1/8"W x 2-1/16"H