Crunch P1-5050.5 - 1000W Max 5-Channel PowerOne Series Car Amplifier: Crunch PowerOne Series P1-5050.5 Car Amplifier Features: * PowerOne Series 5-Channel Class A/B Car Amplifier * RMS Power Rating * 4 ohms: 62.5 watts x 4 chan. 150 watts x 1 chan. * 2 ohms: 125 watts x 4 chan. 250 watts x 1 chan. * Bridged, 4 ohms: 250 watts x 2 chan. @ 4 ohms 250 watts x 1 chan. @ 2 ohms * Crunch 1000-Watt Amp MAX Power Rating (14.4V): * 4 ohms: 125 watts x 4 chan. 300 watts x 1 chan. * 2 ohms: 250 watts x 4 chan. 500 watts x 1 chan. * Bridged: 250 watts x 2 chan. @ 4 ohms 500 watts x 1 chan. @ 2 ohms * 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) * Slow un-mute soft start turn-on * 5/4/3/2/1 channel operation * Speaker-level inputs with signal sensing for automatic turn-on * 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 * Max 5-Channel Crunch Amplifier Input sensitivity: * Level: 200mV-6V * Variable high-pass filter (60-12,000 Hz, 12 dB/octave) * Variable high-pass filter (30-250 Hz, 12 dB/octave) * Damping factor: >180 * Frequency response: 10-45,000 Hz * Dimensions: 19-11/16"L x 9-7/8"W x 2-1/16"H