High Current SS amps with input impedance = 200K

Amen from me too, of course.

I found the review very quickly because I was too dumb to think of looking in the component category listings. It is in the Power Amp category, because it was reviewed in conjunction with an ARC VS110 power amp. I just entered "Audio Research SP16" into their search function.

Best regards,
-- Al

Thanks everyone for sharing your expertise and attention on this. Much appreciated. Impedance matching is one of those things that I know makes senes to look at for optimal "synergy" between components, but I learned a lot regarding the details of what might go right or wrong here.

Just because the IC connectors are physically standardized to connect things doesn't mean any two things all do it together equally well electronically for sure!