What 200w Class A mono blocks do you have? I moved from CAT JL2 100 w Class A triode to Atma-sphere M-60 for use with my Merlin VSMs with no regrets at all. The OTLs are magical with the right speakers -- as sbank describes.
Well then, you are used to heat - a good thing. Interesting that you are considering Atma; seems like a very different kind of amp. Obviously you have some very excellent SS amps, what is it about the MA-1s that are making you consider the move?
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