Electrostatic speakers

I couldn’t find any information on these from an, admittedly short, Google search. 
 

Do they have bias adjustment? Check the back of the speaker for some sort of pot that is adjustable.

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.