Kicker PXA200.1 - 200-Watt Mono Subwoofer Amplifier Kicker 42PXA200.1 200-Watt RMS Motorcycle/ATV/Marine Mono Subwoofer Amplifier 200 Watt RMS x 1 at 1/2 ohm Electronic Crossover : Selectable 60Hz, 80Hz, 100Hz or 120Hz low pass; 24dB/octave slope KickEQ Bass Boost : Selectable 0 or +6dB @ 40Hz Subsonic Filter : 25Hz, 24dB/octave slope