Do you like clean bass? Kicker’s CXA400.1 mono subwoofer amplifier can put out up to 400 watts RMS, so your bass will both sound loud and full. The quality of the bass tone matters as much as the volume, so a variable low-pass filter helps get maximum performance from your sub/enclosure combination, while a fixed subsonic filter removes the extreme low resonances that cause distortion. A variable bass boost allows you to add some extra low-end punch if you want. An optional wired remote lets you conveniently adjust the bass level from your front seat.