I asked this in another thread, but it seemed to get lost in with the main question. Is there any real difference between matrix 6.1 and the official blessed EX sound? The Denon 3802 is matrix 6.1. The Onkyo 797/898 are EX. In this thread I am not asking which reciever is better just is EX just a logo or is there really a difference? Thanks, Mark PS this forum is great.