mono subwoofer car amplifier 200 watts RMS x 1 at 4 ohms (350 watts x 1 at 2 ohms) variable low-pass filter (50-250 Hz at 12 dB per octave) selectable bass boost (0/6/12 dB at 45 Hz) variable subsonic filter (20-50 Hz at 12 dB per octave) variable phase control (0-180 degrees) MOSFET power supply and output stage preamp- and speaker-level inputs preamp-level outputs fuse rating: 40A x 1 8-gauge power and ground leads recommended