Orion HCCA3000.4H Competition Series 4-Channel Amplifier RMS Watts @ 4 Ohm Stereo 12.6V:  450 Watts X 4 Channel / RMS Watts @ 2 Ohm Stereo 12.6V: 750 Watts X 4 Channel / RMS Watts @ 4 Ohm Bridge 12.6V: 1500 Watts X 2 Channel RMS Power Watts: 6000 Watts Frequency Response 10Hz~35KHz(-1dB) Signal Noise Ratio: 95dB Hi Pass Freq. 40Hz-1.25KHz / Low Pass Freq. 40Hz-300Hz