Given how many poor sounding class D amps have sold well your numbers of class D amps sold is not indicative of much of anything
That might be true- save for one thing.
We've been in business nearly 50 years. People that are buying our amps are buying them for the same reason that we reasoned we could sell them: we've tried really hard to do the right thing over the last 50 years or so; to make an amp that does not measure up to our standards isn't in the playbook. Our customers know that. People that wanted our amps for years but couldn't use them with their speakers know that. People that know about us through our reviews and reputation suspect it. Somehow for the most part I've managed to not shoot that reputation down by my participation on these forums
Things would end abruptly if I/we were misleading anyone. People figure things like that out pretty quick.
I figured I was going to get resistance. The idea that a solid state amp could challenge tubes of any sort is anathema to
any tube lover.
Any one of those people will tell you that you have to let your ears be your guide.
Right now, if I might be so bold, you aren't doing that. You're allowing your understandable prejudice about class D (likely brought on by prior experience) guide you. You are also not looking at what people are saying, even on this thread. Instead there is the good ol' rubber stamp; if its not SET it must suck or something like that. I get it.
When you really get that distortion is what we hear that is different between amplifiers (and also, FR since many amps with high output impedance will not have a flat FR), then you can see how a class D might be really able to sound right- to be smooth, revealing and engaging.