Atma-Sphere MA-1 amps


How good are these amps? I have 200w Class A mono blocks and have been eyeing these for sometime. What are your thought on them and hwo do they sound?

TIA
128x128jtwrace
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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I own a pair of MA-1s from 1990, obviously very early in their history. I would be interested in hearing from anyone who also owns or owned MA-1s of that vintage, and either (i) upgraded them to current or near-current specs, or (ii) replaced them with a newer version MA-1. What I am looking for is some sense of a comparison between the old and new, ie to what extent the sound is the same or similar, and to what extent improved.