Product highlights: mono subwoofer amplifier 600 watts RMS x 1 at 4 ohms (1000 watts RMS x 1 at 2 ohms) Class D amp technology frequency response: 10-320 Hz Variable low-pass filter (32-320 Hz, 12 dB/octave) variable bass boost (0-12 dB at 45 Hz) phase switch (0, 180 degrees) wired remote level control included Other Features: preamp inputs and outputs speaker-level inputs (speaker wire-to-RCA adapters included) wiring and hardware not included with amplifier 4-gauge power and ground leads recommended fuse rating: 35A x 3 dimensions: 15-5/8"W x 2-3/8"H x 7-7/16"D warranty: 1 year