I don’t know who these "upper shelf designers" of amplifiers are that you’re referencing
Well @atmasphere himself opined in the thread, and you quoted him.
There is also the Purifi gear that a lot of manufacturers are using, and a few others that are pretty stunning (Benchmark, Pass, etc.).
I’m in no position to challenge or refute what you’ve experienced. I can just simply say that you and I have had different experiences and as a result, different outcomes that shape and form our respective opinions. I hope that you are able to obtain an amplifier made by one of the upper shelf designers that you cite above.
I am in not position to refute what Ralph said, not Bruno, nor Nelson.
I meant what I have written earlier, follow the pathway that suits you the best. My chosen pathway is to hear and do actual listening of audio products myself. If you are reassured by test measurements then continue with that method. For me it’s woefully inadequate.
Have you heard any of the Purifi based Class-D? The Benchmark, or Atmasphere amps?
I am seriously thinking about selling the VTLs, and the PrimaLuna. But I’ll slide a class-D in first to make sure.