Onkyo Integra TX DS838 7.2 Channel 480 Watt A/V Receiver Channels 7.2 Output Power 480 Watt Amplifier Output Details 50 Watt - 8 Ohm - 20 - 20000 Hz - THD 0.08% - 2 channel(s) ( surround ), 90 Watt - 8 Ohm - 20 - 20000 Hz - THD 0.08% - 1 channel(s) ( center ), 90 Watt - 8 Ohm - 20 - 20000 Hz - THD 0.08% - 2 channel(s) ( front ) Response Bandwidth	20 - 20000 Hz Built-in Decoders	Dolby Digital, Dolby Pro Logic