Class D with high efficiency speakers

I would not sell the OTL - wait until you’ve tried other types of amps, and give it time. I have Atma-sphere MA-1 v 3.2 monoblocs, mainly fed by the Io Eclipse. They are a daily joy in our system, with top level NOS driver and output tubes and clean power. I am on regular visits to my friends in our local audio circle, some of them with class D amps, but I always come back thinking that I love the tube OTL sound at home.

I was surprised that Ralph / Atma-sphere - post above - wrote that he didn’t miss it (M-60). I am sure his new class D sounds good. But I would guess it is a case of plus and minus?

I would certainly try it. It might make for a good match. 

I am sure his new class D sounds good. But I would guess it is a case of plus and minus?

@o_holter Its been a year and a half now and I've not heard any tradeoffs. But if your speakers are designed for amps with a high output impedance (and mine are, FWIW...) things might be different. If you are dealing with a speaker like that you might find the class D to be a bit leaner in the bass because it will make less energy into the impedance peaks that are in the bass region of the speaker.

Give the PS Audio M1200's a trial. Class D using a long lasting tube for the input stage. 

Only combo like that I have heard is Atmasphere Class d running Classic Audio Design at Capital Audiofest this year and the Class D sounded spot on  and hung in there with the OTLs.