Who tried Class D only to return to S/S or Tube

The way people talk about the older amps from just a few years ago not sounding anywhere near as good strongly suggests that a few years from now class D will sound a lot better than it does now.

This has entirely to do with technology performance curves; if only a few years separates the good from the bad then its simply a fact that the technology is not yet mature and further improvements are already in the pipeline

^^ 'out of the house' by that do you mean visit customers, go to audio shows, visit dealers and manufacturers? I do that already! We even experiment with class D in house; we heard the Bel Canto class D amps before they were even released to the public; we've been actively observing the evolution of class D for nearly 15 years.

Its **really** obvious that that you misinterpreted my prior post- go back, and read it again.

[quote]Atmasphere made no big logical mistake - his assumption is valid, though the result of the technological evolution is by no means guaranteed. In other words, class D amps might get a little better and then exhaust their potential, or they might keep improving more and more with no end in sight.[/quote]

Exactly.

One can assume that since there is a 3rd gen out there, that there will be a 4th gen sometime too. This thread and others like it exist as proof that class D is still not a mature technology as the improvements that have appeared in just the last few years are made out on those threads and this one to be pretty profound. If the technology were mature, the improvements would be incremental, possibly taking a decade or more before the improvements accrued really meant something important.