I recently bought an Onkyo TX-NR818 and wonder what the preferred option for converting 5.1 to 7.1 with Surround Back is. My receiver does Dolby Pro Logic IIx, DTS Neo:X, THX Select2 Cinema, and THX Surround EX for accomplishing this. It may have other modes that I have not found. My receiver also does Audyssey DSX, but I think that only adds Front Wide and Front Height speakers, and not Surround Back speakers.
Btw, I would like the settings for watching movies.
Thanks a lot for any help.
HD-A1 + XBOX Add-On + PS3 = Format Neutral