Kicker 44KXA400.1

Great bass requires serious power — it's a basic law of nature. And Kicker's KXA400.1 mono subwoofer amplifier will definitely give you great bass, powering your subs with up to 400 watts RMS. This reliable and compact KX Series rocker remains cool even when pushed hard, thanks to its high-mass heatsink, high-tech internal components, and the efficient Class-D amp technology. And the amp will work with a 1-ohm load, so it can get used in a wide variety of subwoofer configurations. Kicker employs their Fail-Safe Integration Technology (FIT2™) to reject noise and stop any interference generated by your car's electronics, so you'll enjoy your music clean and pure. Speaker-level inputs make it possible to hook this amp up to almost any stereo, even a factory system. Kicker also helps you set this amp's gain properly, by offering free test tones for downloading. You play a tone and turn the gain up until the gain knob glows red. Then, you turn it down until it just goes out, and the amp's gain is set perfectly....