Class D

After @redwoodaudio 's review of the little Orchard monoblocks, I'm still thinking that as of right now (i.e. could be ordered today), the AGD Audions are the strongest contender.

he needs extraordinary proof to support his claims

I know you don’t believe them, just look at the Technics SE-R1 at what it does and the press reviews it gets of it sound quality.
Which rids the Class-D bugbear of many that say the uppermids/highs are the problem with Class-D.
And what designers of higher standing than you quote.
Just one of those quotes from Cyril Hammer probably one of the best solid state designers in our lifetime with Soulution Audio amps https://soulution-audio.com/

Cyrill Hammer (Soulution)

"if you want to have your Class-D product performing at the cutting edge it is not possible with todays known switching technologies. In order to come close to the performance of the best linear design we would need high-current semiconductors that provide switching frequencies of several MHz or even GHz."

Now we do have those devices in the GaN, but so far the only one using those 1.5mhz switching speeds is in the Technics SE-R1.
All the rest, including you are not using the GaN technology to it fullest. You started with a clean design slate, you should have utilized the GaN to it fullest, but you state you didn't. maybe you just didn't have the ability to do it like Technics design brains trust team do.

Cyrill Hammer is a good designer but entirely mistaken in his comment you quoted.

When class D amps (Purify) are making distortion that is 120dB down, it is serious cutting edge; lower distortion than the Soulution amps.

Again, you need extraordinary proof to support your extraordinary claims.

I wonder if it would ever be possible to have a class D thread that could be declared a georgehifi-free zone.

@atmasphere  You have the patience of Job... and then some.

Gotta say, the energy and vitality George brings to discussions about Class D makes it seem rather personal.  As if Class D killed his dog, and he is John Wick.

If Class D was even 10% as bad as he makes it out to be it would be a non-issue.  Class D would be dead and none of us would listen to it, and no one would need to bash it. It would be it's own worst enemy, and attract flies and locusts whenever anyone turned a Class D amp on.

But yet, here we are.