I actually got the amps. They are pure Class A, tube-rectified (5Z3), all transformer-coupled, PP 2A3 monoblocks. They were, as advertised, an older pair. Initial listening tests were better than I expected but they do not wield tremendous amounts of power. I will try them on 8 ohms tomorrow to see if that does better. I expect in the end I will have to use them only for the mids and treble if I keep them.
I hope to get in contact with Imai-san this week and find out all I can about them.
I hope to get in contact with Imai-san this week and find out all I can about them.