Amp/ preamp for electostatics and why

Solid state amplifiers always sounded lean on my Martin Logan CLS, but any tube amplifier sounded great. After trying numerous solid state amplifiers I decided the problem was the speaker's wicked impedance curve.
The CLS has very low impedance in the upper fequencies and when solid state amplifiers see a low impedance, what do they do? They produce more power. Also, the CLS has very high impedance in the low frequencies where the solid state amplifiers would produce less power.
More power to high frequencies and less power to low frequencies made for a very lean sound.
Tube amplifiers didn't seem to care providing the wattage was high enough.

A good used pair of 100 watt tube monos to drive your SL3s will cost you $800-$1200. For that price you can buy VTL Compact 100s or Quicksilver Silver 90s. I have used both with Electrostic speakers with good results.

100 watt tube monos are very powerful and you can easily learn how to bias them.

Audio Research made a V-140. It was basically Classic 120 monos balanced. And if you use Audio Research you don't need the Zeros. There is always a trade off with that type of product.

Ralph, I'm surprised you are pushing your products here.

Ralph, It is a fact that electrostatic speakers and OTL amplifiers work well together.

The big Beveridge 2SW and 2SW2 used OTL amps and the Acoustat X had direct drive OTL amplifiers also.

I have always been curious about who designed the Beveridge amps. I thought it was Modjeski, but he said he didn't. Do you know who it was?

Al,
Thank you, I thoroughly enjoyed reading about the develpment of Beveridge speakers.

Ron