Alpine R2-A75M R2-Series mono subwoofer amplifier — 750 watts RMS x 1 at 2 ohms

Product highlights: mono subwoofer amplifier 500 watts RMS x 1 at 4 ohms 750 watts RMS x 1 at 2 ohms variable low-pass filter (50-400 Hz, 24 dB/octave) variable bass boost (0-12 dB at 50 Hz) variable subsonic filter (8-40 Hz, 24 dB/octave) optional RUX-KNOB.2 wired remote level control preamp and speaker-level inputs speaker wire to RCA adapter required for speaker-level input preamp outputs wiring and hardware not included with amplifier 4-gauge power and ground leads recommended fuse rating: 40A x 2 dimensions: 11.12"W x 2.23"H x 6.91"D warranty: 1 year MFR # R2-A75M