Sanders 10B Electrostatic

Albert, I would suggest taking a look at the Music Reference RM-200. Can drive a 1 ohm load and Roger Modjeski has plenty of experience with ESLs having worked for Beveridge, designing the RM-10 for the Quad ESL-57, and now having his own ESL system, including the ability to build a direct drive amp for ESLs. I have been helping him set up his new shop in Berkeley so while he is busy I am sure he'd be happy to provide some assistance.

Albert, it may not be required for the 10B but how many 100 watt tube amps can drive a 1 ohm load? Given that it should be able to handle the impedance of the speaker. As for current, if the RM-200 doesn't meet the challenge I am sure the RM-9 Special Edition can, but the price on that amp is substantially higher compared to the RM-200.

Given what is written here: http://www.dagogo.com/sanders-sound-10b-floorstanding-speaker-review a pair of Atma-Sphere M-60's or the previously mentioned Music Reference amps should do the trick. If what I read in the review is correct the bass section of the 10B has it's own amp and electronic crossover. So the tube amp only has to power the panel section.