Class D with high efficiency speakers

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.

I am sure class D can sound great and it would be great to try, with my sensitive Dream Maker speakers (16 ohms, efficiency:  92 dB/1 watt, Voltage sensitivity:  89 dB/2.83 volts). If class D can lift these even further I am all ears.

I want to correct an impression I may have given in my post above. I have not heard many class D amps in my audio  circle. Mostly, solid-state amps at a lower price level than my MA-1s. So - I really don't know.

One  thing I do know, is that running the passive speaker in an active speaker combo from an MA-1 amp instead of the active speaker amp, can result in a big lift of performance. This includes Audioengine and Elac active speakers. They sound much better.

Atmasphere - thanks for an informative answer, as always. I am not sure about the Dream Maker speakers, but it may be that they are designed for high output impedance from the amps (like your speakers) so that class D might sound a bit lean, compared to more beefy OTL sound from the MA-1s. Not sure, have never compared. My gut feeling would be to try class D first in a smaller system.