Hifonics BRX1116.1D Brutus MONO 1100 Watt Class D Car Amplifier Amp + Wiring New Hifonics BRX11116.1D Brutus MONO 1100 Watt Class D Car Audio Amplifier Amp RMS Power Rating: 4 ohms: 400 watts x 1 chan. 2 ohms: 700 watts x 1 chan. 1 ohm: 1100 watts x 1 chan.