Kenwood New KAC-6406 500 Watt 4/3 Channel Class AB Power Amplifier Car Audio New Kenwood KAC-6406 500 Watt 4/3-Channel Class AB Car Audio Power Amplifier Amp 40Watts RMS x 4-ch (4 Ohms) 60Watts RMS x 4-ch (2 Ohms) 130Watts RMS x 4/2-ch (Bridged 4 Ohms) 500Watts