Boss Audio R1200 Car 1200 Watts 2 / 3 / 4 Channel Class D Bridgeable Power Amplifier with Variable High Pass and Low Pass Crossover Rage Series 4-Channel Class D Car Amplifier RMS Power Rating: 4 ohms: 150 watts x 4 chan. Max Bridged, 2 ohms: 600 watts x 2 chan. Max power output: 1200 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators