GaN-based Class D power amps

The use of GaN-based power transistor tech is now emerging for Class D audio power amplifiers. Seems appropriate to devote a forum thread to this topic. At least 3 companies have commercial class D amps in their books:

Merrill Audio, with their model Element 118 ($36k per monoblock, 400 W into 8 ohms, 800W into 4 ohms), Element 116 ($22k per monoblock, 300 W into 8 ohms, 600W into 4 ohms) and Element 114 (coming soon).

Review of Element 118 at this link:

ADG Productions, with their Vivace Class D amp ($15k per monoblock pair, 100W into 4 ohms). (The designer emailed me indicating he has another product in the pipeline.)
Review of the Vivace Class D moniblocks at this link (warning: link might not work (1/11/2019)):

Technics SE-R1 Class D stereo amp ($17k per stereo amp, 150WPC into 8 ohms, 300WPC into 4 ohms)
Preliminary review of the Technics SE-R1 at this link:
Technics also has a lower priced GaN-based class D integrated amp in their catalog:

Anyone listened to or own any of these amps?

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1) No, that is a pulse train with infinite bandwidth and perfect phase. It's not reality.

2) That is a 10Khz square wave and actually looks quite good. You don't know for certain that's a phase shift issues without looking at the phase shift (in time!) at harmonics at 30Khz, 50Khz, 70Khz, and given the module bandwidth that is going to cause slew issues.

I have designed quite a few audio products, commercial acoustic spaces, have patents in the field, published papers and have a few related degrees. I have shown I understand the tech, can talk in details without hand waving, and don't need to quote others words.

... And, I am still waiting for your justification for why the square wave I posted, which is a very very good 1Khz square wave, is possible if there are such big phase issues?
Why ricevs? To prevent people from being mislead.
This has gone around a hundred times already.  People who can read know that George likes to argue....they do not take him seriously as he has no listening tests to back up his claims. 

No matter what you say, he will say the same thing back.....and on and on it goes......till someone decides the game is futile.   Just state the truth and let it go.  Let him say whatever he pleases.  However, if you let him annoy you then you are in reaction and no longer in charge of your happiness.  Be Happy.

What is really true about bandwidth, switching frequencies, GaNs, etc. will all be known/shown with listening tests down the road.  The Technics/AGT A/B is just the beginning.  Pull up a chair and get some popcorn.....lots of new amps and sounds coming your way.  One person cannot stop truth.
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