It looks as if the new AC4 Handwired is well received. Some gripes about lack of space to fit "better" Alnico speakers. I cannot say I understand why designers insist that the valves should hang down right behind the speaker. Pictures of the insides - it looks neat. There are transistors on the main turret board, and some debate about what they do. Probably reverb drive and return. The by-passable effects loop has its components and buffers on a separate board. I would like to have the Service Manuals of the new series, to see what the circuit is like. The pictures of the AC4 insides could be analyzed by someone who actually knows about circuits, but all the wiring is not clear there.
The happy new owners deem it to be a good price for the amplifier. From what I see, it sure is"better" than the old model. Of course, the inclusion of reverb and effects loops in these amplifiers has the "purists" up in arms...
I would think the new AC10 Handwired will sell well too, And immediately receive "better" speakers.