AVS Special Member
Join Date: Nov 2003
Location: Derwood, Maryland
Mentioned: 2 Post(s)
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I would get the Yamaha. Mainly because of reliability.
YPAO in the 3010 is better than in older and lower model Yamahas in that it does subwoofer eq, handles reflected sound and has more input data. Whether or not it's as good as Audyssey XT32 depends on who you ask, but the difference between XT32 and the YPAO in the 3010 is much less than the difference between XT32 and older and lower versions of YPAO.
I think the difference in reliability is more of a factor than the difference in room eq. If they only cost $500, reliability wouldn't be a big deal, but for $2000, it's imporatant.
The Yamaha and Denon can do up to 11.2 with an external amp. The Onkyo's only go up to 9.2.
As far as amp distortion and power, you probably won't be able to tell much difference.
No matter what, you'll be getting a top of the line receiver with all the newest features and there's not much difference between them.