Sherwood RX-4503 2 x 100 Watt RMS Dolby Virtual Surround Sound Receiver (Black) (Discontinued by Manufacturer) 100w Rms Per Channel With &lt;.1% Thd, 8_ Per Channel Freq Resp: 20hz - 20khz Dolby Virtual Speaker & Dolby Headphone Totally Discrete Amps For All Channels Tone Direct Supports PC/Cellphone Audio Streaming via optional BT-R7 Bluetooth Plug-in Dolby Virtual Speaker