Competitive class D amp suggestions

@orchardaudio and @atmasphere thank you for your comments and the link. I read them with an interest, they sound convincing. 

Class D offers a way around that, by allowing for profound amounts of feedback that is very difficult to do even with modern devices in AB circuits! With such high amounts of feedback its possible to build an amp that is both low in distortion while relaxed and detailed better than the best tube amps. To some this last statement might seem a bit weird but the experience of amps with low distortion not sounding all that good is common. At this point (and take this from someone who has been at this over 50 years) I'm very convinced that tube power amps are on borrowed time.

This is a very strong and challenging statement, especially from a tube amplified producer (i appreciate it very much). I did believe in this a few years ago. Nevertheless, so far, as mentioned earlier in this thread, i did not find a class D amp that sounds as good as  my 5 watts tube SET class A amp. Perhaps, Orchard and Atmosphere  already produce such class D amplifiers... 

@orchardaudio and @atmasphere, do you expect to have a further breakthrough is the design of your class D amps in near future? 

I realized that i don't have an answer on the following (perhaps stupid, forgive me) question. Would it make a sense to combine somehow GaN transistors  with Purifi modules in a single amplifier? 

Primare makes some great Class D amplifiers, they do not have the coldness some class D amplifiers might have. Indeed they sound liquid, have the clarity and the black bacground. Aavaik makes some great class D amplifiers as well but at a much higher price point. 

However, nothing can replace a Pass Labs class A amplifier weighting 100lbs having 2KVA power supply, be sure about that.

@evank "I have the Rogue Sphinx 3 and with the stock tubes it was very thin sounding. I put in a pair of Mullards and it beefed everything up"

I have not heard the Rogue Sphinx V3, so I can’t say that it is or is not thin sounding with stock tubes. Herb did not mention anything about it sounding thin in his review. Perhaps it depends on what you are pairing it with, source and speakers? It is good to know that you found that it actually responds to tube rolling. That could be some fun. I like the no nonsense look of it, especially in the black. The black makes those knobs pop, plus the graphics are more legible. Herb liked it paired with the Lintons, kef ls50, and the Goldenear BRX. I don’t like that it has increased in price by 200 bucks, but like everything else, it is the norm nowadays.

Class D competing with class A? No way..two completely different animals. 

The M1200s are now $4398. Stock Ice Edge boards but their own tube input. Ric Schultz introduced  his EVS1200 a good year before them using the same Ice Edge modules, but in one chassis, plus all his technical and mechanical skills. No longer made, it was ~ $2500. I have one, that I would consider selling it at that price