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In Reply to: RE: Maggie slap / Mylar Stretched posted by pistonengine08 on July 30, 2016 at 05:36:50
FYI:
1) One of my Martin-Logan CLS exhibited nearly identical corner wrinkling in one diaphragm. It was due to localized failure of the adhesive that holds the stator/film "sandwich" together.
2) I have seen similar wrinkling in the treble dust covers in my QUAD 57s when I release the panel clamps to remove a bass panel.
My guess is that your clamping system or frames are mechanically distorting the failed panel's planarity.
In my experience direct sunlight is bad for just about everything...
Follow Ups:
Early model Maggies eventually became damaged by continued exposure to the sky-light UV which passed through windows, direct exposure to sunlight not being required. I owned Tympani 1C's which became damaged by this indirect exposure to light. I suppose Magnepan themselves were unaware of this, otherwise they would have advised accordingly. Of course later model Maggies did not contain using UV sensitive material. Nonetheless my T IV-As receive very minimal exposure to window light.
I believe that I had the same problem on my 1.7i's and ended up sending them in because they were still under warranty.I think user "shoey" had the same problem and did a DIY solution.
Here's his thread:
Edits: 07/31/16
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