BG-3300.1D BRUTUS Gamma Amplifier Car, 1-Channel Vehicle Audio Amplifier Delivers powerful sound to your speakers and subwoofers with a Super D Class, 3,300-watt, mono car audio amplifier Features mono-only operation, variable electronic crossover, and electronic equalizer capabilities for precise sound control Power ratings: @ 1 ohm 1 channel x 3,300 watts @ 2 ohms 1 channel x 1,650 watts @ 4 ohms 1 channel x 825 watts