Thank you for your responses I can audition the amps at the sales location, but not in my listening room, where typically components sound better. Autoformers are not "transformers" in the denotative sense; you can read up on them at the "anti-cables" website. Anyway, the OTL design seems to make better sense in theory. As silly as it sounds, it's going to be hard to beat the sound of those Carys. Of course I once thought of that with my first tube amps; Golden Tube Audio SE-40 monoblocks back in the 80's!