Soundstream L5.1110 5-Channel Amplifier Class A/B Full Range RMS Power 4-Ohm Bridged, 14.4-Volts: 310 x 2 RMS Power 2-Ohm, 14.4-Volts: 155 bx 4, 490 x 1 RMS Power 4-Ohm, 14.4-Volts: 100 x 4, 300 x 1