You could go here and see if you can find what you are looking for:
https://www.apogeeacoustics.com/repairsapogeeribbons.html
There is a link on the page to worldwide installers as well with names of people you can contact for information.
If you are in the US Bill Thalman at Music Technology or Rich Murray at True Sound Works are expert Apogee restoration experts. I'm sure they can help.
https://www.apogeeacoustics.com/repairsapogeeribbons.html
There is a link on the page to worldwide installers as well with names of people you can contact for information.
If you are in the US Bill Thalman at Music Technology or Rich Murray at True Sound Works are expert Apogee restoration experts. I'm sure they can help.