Precision Power i650.1 650-Watt Single-Channel Monoblock iON Series Class D Full-Range Digital Stereo Bridgeable Amplifier
RMS Power Rating: 4 ohms: 400 watts x 1 chan./2 ohms: 650 watts x 1 chan.
Pulse Width Modulated MOSFET power supply
Wired remote bass level control included
LED power (green) and protect (red) indicators
4-way protection circuitry (thermal, overload, and speaker short protection)