[Bob H.]

MY Harmon Kardon uses a 100uf cap, and it's the only one in the signal
chain. Since it's my only SS amp, it's what I'm familiar with. And I
will be replacing them with at least Silmacs, and probably foil caps
when I get around to it.

My mistake. The 100uf caps are at the input of the amp section. The
ouputs are direct coupled. It's been a couple of years since I looked
at the schematic, and just made a mental note to look into alternatives
for those caps.

Bob H.