Sorry, you’re wrong.
The case is made by one of my DIY friends here in Thailand. It’s teakwood, and I spray the top aluminum cover with black paint. The amp inside is KGST.
Nothing bad should happen. It could probably be the loosen wire connections. You might want to try resolder all the soldered joints first.
Well, some small dust could also be a problem. Check and clean the stators and the diaphragm could solve the problem too.
Thanks for sharing the pictures. Have you a picture of the other side of the stator, the side that faces the diaphragm? What is the material and thickness of the spacers?
I really like to try to make some wire stators for my DIY electrostatic headphones. I've bought some wire mesh, but I have no idea how to stretch it so that it's absolutely flat and tight. Any ideas?
I’ve used something similar with one of my headphones for a while now. It’s been OK. Yes, it’s not double insulated and it’s not as soft as the Koss cable.