Clarion XC6210 350-Watt 2/1 Channel Power Class D Amplifier 2-Channel Marine XC Series Class D Power Amplifier Conformably Coated PC Board RMS Power Rating: 4 ohms: 85 watts x 2 chan./2 ohms: 125 watts x 2 chan./Bridged, 4 ohms: 250 watts x 1 chan. Pulse Width Modulated MOSFET power supply Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)