Hi all, I just about to up grade my DTS/DD amp to a new DTS ES/DD EX one. I've heard a lot of good reports about the Denon and read lots of threads but I just have a few questions. How does the 7 channels of amp actually work ie does the amp take the extra Centre Rear channel from the ES or EX sound track and split them between two new rear speackers? If so then is this any different from the Ultra THX which is doing this and calling it 7.1. Any help would be most welcome! Cheers Paulh.