Mark. Has Denon finally released a good receiver for square rooms?
Denon has indeed released such a receiver! And not only is it affordable for everyone, but as it states on page 53 of the manual
, it uses Audyssey to do so AND and on that same page it details how the receiver also includes the magical ability to reintroduce stripped data that is now missing from compressed music files.
On pages 96 through 100 you'll find a concise and easy to follow table that explains the various surround modes and their optional parameters. It's so clear that you'll have no trouble getting it all setup properly the first time that you review the table.