Kenwood KAC-M1824BT 400W 4 Ch Marine ATV Bluetooth Amplifier + Remote + Wiring New Kenwood 4 Channel Bluetooth Marine ATV Motorcycle Amplifier (KACM1824BT) RMS Power 45 Watts x 4 at 4 Ohms 45 Watts x 4 at 2 Ohms Peak Power: 400 Watts