Blaupunkt THA-275 PnP 2/1 Channel 400W Amplifier 400 Watt 2/1 Channel Amplifier Power at 4 ohms.: 2 x 75W RMS (150W max.) / 1 x 190W RMS (400W max.) Power at 2 ohms. Stereo: 2 x 90W RMS (190W max.) Variable Low / High Pass Filter Features RCA, High-Level, and Direct 3.5mm Stereo Aux. Input