restorer-john
Grand Contributor
I think that John @restorer-john might remind me if there was a commercial amplifier (Crown?edit: Technics SE-A1 ) based on this principle.
Yamaha B2-X also is somewhat similar, except they do it the other way around. A super accurate low power, low voltage rail +/-3V (fixed not floating) and a high powered AB stage +/-70V to absorb power loss.
Service manual is on HiFi engine. I have an original brochure if you want a copy. (I'll scan it over the weekend and upload it to HiFiEngine)
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