* Marine mono subwoofer amplifier * 350 watts RMS x 1 at 4 ohms (700 watts RMS x 1 at 2 ohms) at 14.4 volts * 250 watts RMS x 1 at 4 ohms (500 watts RMS at 2 ohms) at 12.5 volts * Differential-balanced inputs * Advanced Rollback Protection System * Variable low-pass filter (40-200 Hz, 12 or 24 dB/octave) * Switch-able bass boost (0 or 6 dB at 48 Hz) * Optional wired remote bass boost * Class-D amplifier design * MOSFET power and output stages * Preamp-level inputs * Speaker-level input with optional converter * Preamp outputs * 4-gauge power and ground leads and a 50-amp fuse recommended wiring and hardware not included with amplifier * Noonboard fuses when installing multiple amps in a system, anadditional 80-amp in-line fuse between the distribution block and theamplifier is recommended * 11-13/16"W x 2-1/2"H x 9-1/4"D