Lanzar EV1804D 4000 Watt Mono Block Amp 1 Ohm Class D Amplifer + Wiring Kit Lanzar EV1804D 4000 Watt Mono Block Amp 1 Ohm Class D Amplifer 1 x 500 Watts RMS Power at 4 Ohm 1 x 1,000 Watts RMS Power at 2 Ohm 1 x 2,000 Watts RMS Power at 1 Ohm 1 x 4,000 Watts Peak Power at 1 Ohm