Thanks for the input everyone, appreciated it. I have compared the user manuals and online info for both models in greater detail as advised.
So here is what I'm seeing (hope I didn't misread any specs here) as the differences that might/would matter to me,
Pros:
RXV667
- About the same price with two Yamaha P2500S or Crown XTi1000 amps.
- Less loss if receiver is upgraded in the future, will still have amps.
- Absolutely no lack of power.
RXA2000
- Better (leanring) remote with Macro function and a second "minimal" remote.
- Better YPAO, multi-position and reflection detection.
- *Might* be enough power to drive hard hitting scenes in a single unit.
- No potential for amp fan noise.
- Web interface control is kinda cool.
- Network firmware update available.
So given the pros listed above I'm leaning towards the 667 at this point. While the better YPAO of the 2000 may save me some time, I can manually adjust the setup (as I've done in the past) with my laptop and REW. Has anyone found the better YPAO to make a huge difference? Also, does the YPAO adjust the parametric EQs for you?
Still have to wait on actual pricing for the amps from my dealer. I guess there will be some additional cost to go from unbalanced to balanced XLR inputs as well.
As far as setup goes, do you think one of the amps listed above driving the mains with the receiver handling the center and two surrounds balance out well? Also, any input on the which amp, Yamaha P2500S or Crown XTi1000, is better suited for the job?