Martin Logan ESL X three strips don’t emit sound at all

[proaudit]

Hello,
I’m experiencing an issue with my 2022 Martin Logan ESL X speakers.
One of the speakers has started sounding more muffled, with weaker high frequencies. I ran the sound testing mode on the speakers and found that the lower part of the electrostatic panel in one of them isn’t emitting sound. By listening closely, I noticed that three or four of the lower strips on the panel aren’t working.
Over a day ago I powered off the speakers.
First, I vacuumed them and then moved the panel to the second speaker.
Nothing changed—three strips don’t emit sound at all. I marked them with my fingers in the photo.
Three of us listened and all confirmed that these exact three strips aren’t working.

What should I do in this situation? Thanks

 

[ttocs]

If repeated vacuuming in the affected area doesn't fix the issue, then you'll need to contact Martin Logan for Warranty Service.

From the manual:
"WARRANTY AND REGISTRATION
Your EM-ESL X speakers are provided with an automatic Limited 90 Day Warranty coverage. You have the option, at no additional charge, to receive a Limited 5 Year Warranty coverage. For your convenience MartinLogan offers online warranty registration at www.martinlogan.com."

 

[Tosh]

Assuming the HV charge is not reaching the diaphragm in that area, you could try to squeeze or massage the edges together on the side where the wires attach (on Ascent it's on the R side), attempting to make better contact. Try while it's playing. Have dry hands...

Actually, try first with them powered on but with silence playing and see if you can hear the tell-tale squeaking of HV leaking away or migrating around while pushing and squeezing the ESL sandwich together.