Amp upgrade for Thiel CS 3.7

At first, I'd say overkill for the 3.7's-But if you are getting a good deal, what the heck. But Krell yes!  Thiels should have double down power. FPB 300 would do real well, and would be half the money. The 700 is in 5i territory, or 7.2. Lots of mass and lots of heat!. I had an fpb 300 with my 2.4's, which was great, but more than I needed. But at the price, I could afford the extra power,  I'm  going to use a pair of fpb 250 monos for CS 6's, which should be ideal. I've had 2.2, 2.3's 2.4's, cs5i's, and finally CS6's. Would really love a pair of 3.7's!

Ironically, Thielist, I have not yet heard my CS6's. They were damaged in shipment due to inept packing by Craters and Freighters of Cleveland,which I do not recommend. I have repaired the dent, sort of, but now await the arrival of the Krell 250 monos. I will let you know how these match up. However, my experience with Krell has been excellent; the fpb 300 dominated my thiel 2.4's--by that I mean the speakers opened up dramatically, without the analytic "bright" sound attributed to the Thiels by listeners who had their speakers underpowered or paired with inferior electronics. Krell eptiomizes high current amplification, and has an outstanding service department. I have high Regard for Classe as well; my humongous CAT 660 was humiliated by a pair of 300 wpc Classe monos in an A-B test conducted by my friend and Classe/B&W dealer in Lubbock. 
I have heard the grainy/imaging complaint as voiced by Larry; however, I have not observed that with the 2.4's. I don't claim to have golden ears, not at my age, but I will share my experience with the CS6's.
Cheers, as they say up north!