Kenwood KAC-M3001 600W Class D Monoblock Compact Digital Car/ATV/Marine Certified Amplifier Compact Series Monoblock Class D Car / Marine Amplifier RMS Power Rating: 4 ohms: 200 watts x 1 chan. / 2 ohms: 300 watts x 1 channel Max power output: 600 watts x 1 channel Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators: Soft start turn-on