What I am getting at, is that you don't have to spend that much on an amp, especially one that is for powering the surrounds. Just buy an Emotiva, or a nice pro-amp. I personally would recommend three Behringer iNuke1000dsp amps for your LCR's, each ran in bridge mode. They have a built in Dsp that can EQ your speakers for getting the very best response! Then you could but one more iNuke1000dsp for each pair of surrounds.
I know that I will likely he flamed to death over this post, but I would be willing to bet you money that you could not tell the difference between an expensive Parasound amp versus a much cheaper Emotiva. These Behringer iNukes are also just as good as those Parasound amps, but, being that they come with Dsp and the ability to EQ each speakers responce individually, I would bet you my house that the end result with the INuke1000dsp amps would be better than the Parasound!
Take this for what it's worth, but considering the Behringer iNuke1000dsp amps are only $230 each, why don't you buy one or two to try out and compare for yourself? If you don't think they sound as good as what your already have, (or better due to having the built in EQ ability), then you could easily resell them for around $200 each and loose only a few bucks!
Interesting I did the same thing with 80D2s and McIntosh vs Classe CA-M600 and the difference was staggering!
"Enter the Behringer NU1000 DSP amplifier. This amplifier that is inexpensive, light weight, and powerful. What makes this amp unique is that it has a surprisingly powerful DSP complete with a Windows configuration utility (no Mac version as far as I can tell). This amp, however, has an incredibly loud fan"