wokeuptobose OP
I find it interesting that the Pass amps have only come up once or twice here.
Pass amps are complimentary push/pull Mosfet output stage, generally they don’t do very low impedances as good as equal in size complimentary push/pull Bi-Polars (BJT) can eg: Gryphon,Krell,D’Ago etc etc.
Cheers George