Electrostatic speakers

i did try to switch the channels. it made no difference. I've checked the fuses also. funny thing. i did not think the woofer were powered, but the on/off switch dose not seem to make a difference in sound on ether speaker. i was going to try swooping the panel next. When you say they degrade is it the coating on the firm/membrane? i wouldn't think the transformer in these would degrade.

thanks

The only information i could find on them was a review from Vault.

Here's a pro review...

https://hometheaterhifi.com/volume_3_2/v3n2m.html

DeKay

Vacuum the panels. Dust accumulation on the panels can do that. If it won’t help, the panel is most worn out. 

There are no places to adjust anything externally 
Thanks I’ll give the vac  a try.