Onkyo TX-8020 2 channel Stereo Receiver 50 W/Ch (8 Ohms, 20 Hz-20 kHz, 0.08%THD, 2 Channels Driven, FTC) WRAT (Wide Range Amplifier Technology). Tuner Features : 40 FM/AM Random Presets 5 Analog Audio Inputs and 1 Output, including Phono Input for Turntable Connection Massive EI Transformer. Compatible with the DS-A5 AirPlay RI Dock for iPod/iPhone/iPad.It's not a surround sound stereo. Power Output90 W + 90 W (6 , 1 kHz, 1% THD,1 Channel Driven, IEC) 50 w/ch, 8 ohm, 20Hz - 20kHz, 0.08% THD, 2 ch driven, FTC Wide Range Amplifier Technology (WRAT) 5 Audio Inputs, 1 Outputs Phono Input Independent Bass, Treble, and Balance Controls Subwoofer Pre-Out Speaker A/B Terminals