The 08ZX400.1 mono subwoofer amp will drive your subs with up to 400 watts of power — enough to give you the big bass sound you want. Kicker's ratings reflects a true measure of the amp's power capabilities — no inflated "peak power" ratings here. Efficient heat sinks and rugged internal components ensure reliable operation and clean power output, even when you crank your system hard for long periods of time. Switch on the built-in low-pass filter to send the bass notes to your subwoofer, and use the subsonic filter to remove the extreme low frequencies that hamper system efficiency. You can kick in more low-end bump with the bass boost, and the included wired remote control lets you turn on the boost from the driver's seat. Details: mono subwoofer amplifier 200 watts RMS x 1 at 4 ohms (400 watts x 1 at 2 ohms) variable low-pass filter (50-200 Hz at 24 dB per octave) variable bass boost (0-18 dB at 40 Hz) selectable subsonic filter (24 dB at 25 Hz) wired remote bass level control Class D design CEA-2006 compliant speaker-level inputs preamp inputs and outputs fuse rating: 40A x 1 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier 10-1/4"W x 2-1/4"H x 9-11/16"D warranty: 2 years