I would love to play with 9.1 or 11.1 but unfortunately when i upgraded my avr i did nt read the fine print and went with the denon 3313 which has 11.2 connections but can only process 7.1 or 7.2 (not sure on the .1 or .2). I would love to have got the 4520 but that was out of my price range at the time. My next upgrade will be a straight pre-amp but i have struggled to find one that goes beyond 7.1 or 7.2 while still being within a reasonable price range. I would need more amplification as well as i only have a 5 channel poweramp.
His does it make use of the 9.2/11.2 connections if it does not process to them?
7.1 is the max you will find in any soundtrack, 9 and 11 have always been internal processor settings.