Harry Pearson (HP's Workshop) gave an Editor's Choice Award to the Wyetech Labs Sapphire 300B single-ended triode monoblock in issue 165 Oct/2006 of The Absolute Sound.
To these ears, the best of the single-ended-triode amp designs, which is to say, with none of the questionable colorations of most SET's, and a pure transparency that denotes a great amplifier. Good bass, too, another of it's distinctions…