Hi Tom; and thanks for your response to my "terse" post. I too shouldn't generalize. Some of the most important aspects of say, R&B music to me are pace, rhythm, and timing, and in my experience (limited w/ tube amps), SS amps are quicker, and have more control of woofers, and thus serve PR&T much better. I auditioned for a week, an SFS-80 (STPH Class B), and while it had a great mid-range and deep powerful bass, the rest of bass characteristics were terrible, ie slow, bloated, boomy, and it totally destroyed PR&T. This was in comparison to my McCormack DNA-1DX which had quick, tight, articulate bass with great PR&T. Other than this, I've only casually heard a few other tube amps at dealers. I agree that mid-range is most important, but to me good bass and PR&T are a close second. I would guess that some of the super tube amps must produce good bass-- I would like to know which and at what price. My long term solution may be to go to Vandersteen 5 speakers, that have built in SS amps for the woofers, and put a good tube amp on the mids + tweeter. Cheers. Craig.