Sherwood R-771 7.1 Surround Sound Receiver Includes - 8-unit preprogrammed remote control. 100 Watts per Channel (stereo and surround) 20Hz to 20kHz in Stereo Mode 8 ohms with &lt;0.20% THD Surround Modes - DTS-ES Discrete & Matrix, DTS 96/24, DTS NEO-6 Movie & Music, Dolby Digital EX, Adjustable Dolby Pro Logic IIx, or Dolby Headphone