Recommendation for an equivalent to Onkyo 706

[Siri]

I bought an Onkyo 706 a few weeks ago, and have found out it has issues with my Xbox 360, Cable Box, and basically anything that bitstreams. I have taken it to two different service centers who have both told me that there is Nothing wrong with it, yet I still have the issues.

So, I am looking for a receiver that is equal to or slightly better than the Onkyo 706, I do not want another Onkyo, this is the first and last time for me with them, unfortunately. Preferably $600 and Under.

Thanks