I have a Yamaha 795a. It sounds great on DTS and Digital Dolby but all else is not that good. My brother has a Kenwood KC-X1 Tuner with a seperate 5 channel amp. It sounds great no mater what you play on it. He gets good surround sound no mater what it is. On mine if is not DTS or DD everything pretty much comes out of the center or main speakers. Music is hardly worth listening to on it. Is it the THX tech that makes is sound so much better? I was thinking about maybe getting a Kenwood VR-7080.