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

I recall that Stereophile put the PS Audio HCA-2 in the 'Class A' 
category... kind of curious how they would rate it today ??

I had one and although my setup has changed a bit...my acoustic memory would have the Class D Audio 470C showing the HCA-2 the door !
For the money spent this amp reminds me of the NAD 3020 that I used with my DCM Time Windows, both of which I bought new at the time.

This amp could easily hold you over till the 'dust settles' a bit in the class D wars...and for next to nothing (relatively speaking) !!  

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

I am interested to see/hear how much better the technology might sound in a few years.  It already competes with the best in some opinions, including my own, to the extent that I think I will only know it can be a lot better when I hear it.