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I should know better than to jump in on a speaker cable discussion, but I guess not... Roger Sanders got me started building ESLs and his opinions carry some weight with me. Here's a link to Roger's white paper on speaker cables for ESLs...

Thin stators could easily be damaged (bent) by prying them apart. But if the panel is dead anyway, there is little to lose. Rather than prying the stators apart, I would attempt to saw thru the adhesive bond lines using 80-pound braided fishing line strung on a bow. I would start at a corner...

I suspect a Theater panel could be disassembled without destroying the stators, but not by prying the stators apart. I would attempt to saw thru the adhesive bond-lines with a string saw-- basically a wooden bow strung with 80-pound braided fishing line, starting at a corner and sawing...

That sounds like a winner idea! Once you know the deflection you can tension the diaphragm to the same deflection to yield the same tension that ML applied. It's better to over-tension rather than under-tension the diaphragm so you want to err on the high side. Also; before tensioning the...

If you're up for a DIY panel rebuild, I would be happy to assist you remotely. It's probably easier than you imagine. I should reiterate that I've have never rebuilt an ML panel but I've built many ESLs, the same physics apply, and it's not rocket science. The prime directive for an...

I doubt that ML is soldering the wire lead to the foil strip--- but I'm just speculating (I don't know that). Apparently it's not a huge problem or we would hear about it more often. As an ESL builder, I consider it a no-brainer to solder the wire to the foil strip, and also extend the strip...

My point was that the problem would not have occurred had the bias supply wire connection been soldered rather than wrapped. There's really no reason not to except that it would add several labor-minutes to the fabrication.

Thanks for the info. I'm asking because I will be remotely assisting someone with refurbishing a pair of dead panels. I have extensive experience building wire-stator ESLs but I've never worked on ML panels. I figured the CLS panels would be fully bonded because they appear to have a compound...

Question (just curious, since I've never worked on a ML panel): Do you know whether or not the front stator can be removed without damaging the diaphragm, or is it too well bonded to allow that?

It's always better to solder the bias supply wire to the copper foil charge ring. Here's how I do it:

I live in Savannah, GA Yes, shipping is always a concern with ESL panels if you don't have specifically-engineered shipping boxes. Eight years ago when I transitioned from perf-metal panels to wire panels in my DIY speaker builds, I gave away (2) pairs of my older (but still-working) perf...

That would make sense because the bass sections would be more affected by drum head resonance.

That's interesting. I'm trying to imagine how it would affect the sound. The old Acoustats use a strip of felt on the rear stator to absorb some of the energy of the diaphragm's drum head resonance. The tuning tape could serve as a barrier opposing a pressure wave, so perhaps it serves the...

It's a good idea to check the CarverSite Forum for opinions. Ive never owned a Carver 1.5 but I drove my old hybrid perf metal stats (which were a bit larger than SL3's) for years with a Carver TFM-25 (225W/Ch) without issues. BTW; the ESL impedance is frequency dependent and would only...

The diaphragms are not likely to be damaged by anything other than a point impact that punctures the film. My original perf metal ESL's used ultra-thin 6-micron diaphragms, which I vacuum cleaned often, and even blew out with compressed air a few times, with no problems. My latest ESLs have...

Wow, that's great news! The arcing would have eventually burned thru the stator's insulating coating so it's good that you resolved it quickly. Frequent vacuuming will help prevent a recurrence. Congrats on your success!

Is the crackling sound coming from an area near or at the clear plastic diaphragm support (spar) ? The question now is whether the crackling sound is mechanical (diaphragm flapping against a stator) or electrical arcing. If you don't see any associated movement of the diaphragm, then it's...

It's difficult to tell what I'm seeing in the circled area of your photo. Is that one of the spars (i.e. a diaphragm support spacer) behind the stator, or is it a wrinkle in the diaphragm? I'm wondering because I didn't think there should be a vertical spar that close to the panel edge...

The symptom you described is consistent with a loose area on the diaphragm flapping against a stator on start up, and then quieting down as as the diaphragm accumulates enough charge to locally stick itself to the stator. If so; you should be able to audibly isolate the rattling sound to the...