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The back plane that has two circuitboards in that ebay pic, the upper circuitboard is the ICEPower 200ASC amp board that powers the woofer. The Crossover board below gets power from the ICEpower AUX supply connection... sounds like you swapped the ICEPower boards and confim they both work? I...

Leporello - Found it - from Audio Amateur 1976...if you choose to try - use discretion as very dangerous.

Lowheat - I find 8417 tubes from friends at DIYAudio or Reverb. Every now and then from ebay. I stay with the more rare / reliable / better Sylvania (and Bogen labled) 8417... I always have the stipulation with seller that when received, I test on my tester....if not OK, I reserve the right to...

All this talk of direct driving ESL panels...no step down to step up transformers...search Sanders (Innersound, not ML) White Paper on direct driving ESL from plates of a EL34 tube amp...I have it somewhere, I will post when I find it... But I bought a kit from a company in Germany (Shackman)...

If they charge quickly, its healthy panels... You should know - by driving ESL speakers with bias disconnected & near drained, you risk destroying both your amp (driving a dead short) and / or step up transformers in interface...neither are a cheap fix...

That Nak Stasis has plenty to drive the panels - your good here...but should not take longer than a few hours to fully charge the panels... I would think... Sux that ML never put in a Neon Charge lamp like the Quads have - shows the health of the panels...I actually built one from the...

Just make sure the Soap has Sodium Lauryl Sulfate...some soaps do not have this... I have separated three sets of CLS panels many years ago. Two sets were destroyed...not easy, but can be done...

When transporting the CLS Speakers to your home, were the interfaces (metal box on speaker) disconnected from speaker frame? If so, when reassembling the speaker did you reconnect the three wire connector from panel to the interface? Be very careful when doing anything inside the Interfaces. Do...

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And another thread that explains the Physics around ESL speakers... kinda technical but worth reading if you want to fully understand operation... DIYAudio link

Hello Brandon, Here is a thread that shows the restoration of a CLS type panel. Tricky but doable... DIYAudio link Also of note - the mylar on the CLS stator is tensioned vertically - not horizontally. And exactly what the tension is is still a mystery to me...there is a % vertical...

Hello Brandon...I will have to dig up the DIYAudio thread...this was about 10 years ago...let me post back.....

Hello Greggo - I am on DIYAudio along with a few others...there are a few members there that really know what they are doing when it come to electrostatic speakers...taught me tons... a member there - bolserst - was extremely knowledgeable and helpful... I also have played quite a bit with the...

Understood...I guess I would have just returned them too had I just purchased them.... I have a pair of Magnepan Tympani T-1D that are over 40 years old that I just reglued the voicecoils...should last another 40 years....as long as the mylar is intact - not ripped....thinking about adding a...

Regluing the Magnepan bass voicecoils is easy. I have done it many times with the new 3M N30 glue that is supposed to be much better than the older Milloxane glue from 3M. Now the quasi ribbon tweeter coils are not a delaminating problem that I can remember.... But Maggies panels are repairable...

Whenever I need a simple power supply / wall wart, I just head to nearest Goodwill store. There are many abandoned power supplies in the electrical dept for a couple bux. There are tons of laptop power supplies there that are are around 18 - 20vdc and 3 amps...You just have to make sure the...

I hear a big difference in how an ESL sounds soon after bias voltage applied and same a day later. Panel needs time to charge up...These are Constant Charge (High Resistance coating), not Constant Voltage (Low Resistance coating) ESL designs, so takes a while for all those electrons to find...

Leporello, I think you are confusing the original Quad ESL-57 with the newer, much more robust ESL-63/988/2805 series (four panels). But the ESL-57 is still the Benchmark for Mids replication, but they had so many other issues that made Peter Walker design the ESL-63... But my Quads do sound...

What they say is true - need 100 watts to sound their best and 101 watts to blow them up.