Quad ESL treble panel additional test before sending to service

stokessd
looking at the treble membrane, do you stretch the membrane with higher tensil force "sideways" than on the length?
If you look on the picture you see that the membrane itself bends in two dimensions.
Do you use different force in X versus Y?

You are looking at the dust cover in that picture, which is intentionally pulled in with four felt washered fasteners. That can be seen here:

IMG_6919.jpeg



So the tension doesn't really come into play, it's a mechanical warping of the dust cover.


Sheldon