JL Audio Full Range Class D 1000 Watt 5 Channel System Amplifier Bridged, 4 ohms: 180 watts x 2 chan. Subwoofer Channel RMS Power Rating (12.5V): 4 ohms: 360 watts x 1 chan. 3 ohms: 480 watts x 1 chan. 2 ohms: 600 watts x 1 chan.