Hey Xavier,
I'm not so sure about the Muzak amp but that guys sure has a lot of fantastic pictures.
Germany?
I particularly noted the 2 different anode cap set-ups. That long amp on the floor (man, that must be a bear to move around!) had what looked like some way to tighten the caps.
On another, the amp/preamp were linked by what looked like some sort of banana plugs and the anode cap wiring was also connected that way. Anybody know what kinda plugs those are? I've never seen those.
There certainly was enough iron in those pictures. And that huge base on that turntable (EMT?).
Very cool,.. thanks for the link!