Can anyone tell me which Yamaha receiver this is based on these specs: Features six-channel 600 watts total output (100 watts per channel x 6), Dolby® Digital® 6.1 EX and DTS-ES decoder. Enhanced features include digital Top-Art pre-amp and all-channel stereo DSP mode with 32-bit DSP engine. Silent Cinema provides surround sound when using stereo headphone (not included), and multi-room/multi-source capability lets you listen to different sources in different rooms. Front and rear multiple A/V inputs/outputs and S-video inputs make it easy to connect components. Includes remote. 17 1/8"W x 17 1/16"D x 6 3/4"H. The ad says it is normally $795 but is on sale for $499. Any help would be appreciated. Thanks.