Amp upgrade for Thiel CS 3.7

Hi everyone,

At the moment i am using a Classé CAP-151 int amp to drive my Thiel CS 3.7
The amp is doing ok but a much bigger amp would obviously be more appropriate to drive my Thiels.
I've seen a very nice Krell FPB 700CX  for sale at a reasonable price.
Would that be a good investment or not ? would it be overkill ?
Let me know what you guys think.


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There is no way old Krell design could compete with todays Gryphon gear in terms of sound quality.Gryphon was most likely not available in the US when Jim was still alive.At the time it was either Krell or Bryston you didn't have much choice for Thiel speakers.

Jim would have been blown away if the Antileon Evo existed at the time he was designing the 3.7s.
^There were others, and better than the Bryston’s too. Gryphon had a inconsistent presence in the US for a while, but I'm confident Jim knew what was going on globally. For the reasons mentioned above, I think Jim Thiel would have chosen the big Krell over the Antileon Evo(s) for the development of the Thiel 3.7’s.