Are there any pics of the internals yet? Not that it’s going to be very informative to most of us, but I’m curious.
I didn't see any Warranty Void if Opened stickers/seals anywhere, so I gingerly unscrewed 4 screws to pop open the top.
Schaffner transformer to the left, power board to the front on a riser.
ALPS pot sits on a 3D printed riser above the VU, and the op amps sit on the main board.
The front switches sit directly on the main board. At a glance, it looks like the pair of 47Ω resistors are paired to the output inline with the impedance switch. There is a "ZMF Amp v3" screen printed on this board. Wonder what V1 and V2 sounded like?
Different angle to see the side of the VU. I couldn't quite get the label on it on this quick snap.
A view of the rear inputs.
There's a lot of different ideas on this amp that I haven't seen elsewhere, especially in the power section – so I guess that's where some of the ZMF magic happens. Not a whole lot of things to say about the internals, since my specialization in EE is in radios and robotics. Otherwise, I'll just say that it sounds good!
Just to cross-post, I made a post on the
ZMF November thread with pictures of the exterior.