I agree with the suggestion about considering McCormack. I used a DNA 0.5 Deluxe with Thiel 2.2's and, while the Thiels were still a little bright for my taste, the sound was considerably warmer than with the Parasound amp I'd had before. There are exceptional buys on McCormack amps if you're patient and they provide an almost limitless upgrade path if you like them.
Affordable Power for Thiel CS 2.0s
No $$. My Audio Reseach D125 gave-up and I am questioning the wisdom of paying to fix it. Never had enough power for the Theils. Tested against much higher power Haflers and Adcoms. Power sounded better, just couldn't live the the sound quality. I see the VT-20 monoblocks here and it fits my meager budget but I've never heard them. for $650 I doubt that I'd find better on the used market. Thoughts? Suggestions?