High Current SS amps with input impedance = 200K

Tvad, I'm sure I could hear the difference. That part would be a walk in the park. But I'm not so sure that I could connect the difference to the difference in impedence values as opposed to the amps design or how it interfaces with the speakers.

For Mapman, whose post follows. FWIW IMHO, the differences which may occur between the small differences, or deviation from optimum values, between amp and pre-amp that we are talking about (I'm NOT talking about gross mismatches, or even medium mis-matches) are absolutely dwarfed by the output capabilities as well as the tonal signature of the amp and the impedence curve of the speakers. But you have probably already figured out that that is my opinion. :-)

BTW, if you are looking for high power, high quality power ss amps, I'd recommend that you look at some vintage stuff, especially stuff made by Nelson Pass when he ran Threshold, especially the SA or S series stuff. Even if you had to have some recapped because of age they would still be a hell of a deal. If I ever went back to SS that is the first place I would go.

My strategy will be to play it safe and go with a high current SS amp that doubles output into 4 and eve 2 ohms as much as possible and has a higher input impedance, along the lines of those I mention above. That will optimize electronic interfaces both in from pre-amp and out to speakers.

From there, whatever amp used will be in an optimal position to synergize with pre-amp and speakers and deliver its best performance as a result, whatever that may be, I would say.

Tvad,

Any SS Amp recommendations given all this?