High Current SS amps with input impedance = 200K

Newbee, your viewpoint on the impedance matching issue that you illustrate in this thread is just flat out wrong.

The possibility that you may not be able to connect what you hear to an impedance matching issue does not mean the issue does not exist, or that is of little importance.

The difference between an amplifier's input impedance of 10k Ohms and an amplifier's input impedance of 20k Ohms is not small. It's significant, and it'll be magnified by a preamp that has high output impedance somewhere along the frequency spectrum (which is typical of many tube preamps).

Spend just an hour reading John Atkinson's comments in his test measurements of a few tube preamps and a couple amps and you will discover the significance of the preamp/amp impedance matching issue.

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?

Mapman, what's your budget (stretched...) and what's your power requirement?

This is primarily for the OHM 5s which have a somewhat difficult load, are only 87db efficient and the more juice, the merrier.

Power requirement: 250w/ch minimum doubling into 4, high current.

I'd like to stay under $2500 if possible for now.

Also, logistically, I would prefer to stay away from large heavy, hot running monster amps if possible. I know that limits my options....