Kicker PXA200.2-2x100-Watt Full-Range Amplifier Kicker 42PXA200.2 200 Watt RMS 2 Channel Motorcycle/ATV/Marine Stereo Amplifier 100 Watt RMS x 2 at 1 ohm 50 Watt RMS x 2 at 2 ohms Frequency Response : 10 - 20 KHz Weather proof