Brian,

Not sure if this is the same Sony ES line receiver you have, but according to the specs for 5.1 it should be fine. Since you don't have 7.1 you don't need Pro Logic IIx and it appears you have DD and DTS in that receiver?

The Audyssey is a nice feature, but you may find your old Sony does just fine if you calibrate the old fashion way.

http://www.amazon.com/Sony-STRDA333ES-STR-DA333ES-Receiver/dp/B00001ZWQA


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