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sooo..it is confirmed that the diaphragm material on the HE-5LE is mylar..isn't polyimide supposed to be a better material to use?
Good question. It's more costly, always seemed less elastic (ie, stiffer for a given thickness) than Mylar, has a jawdroppingly high tolerance for heat (400 degrees Celsius). I suppose if you were afraid someone would actually put 15w 20dB beyond clipping through the voice coil and the expectation was the diaphragm would melt before the adhesive let go, you might well reach for the Kapton.
So no, I don't think it's necessarily better in this case. Now, if you built a stupidly-inefficient isodynamic tweeter... and I used to have a collection of KLH isodynamic tweeters with heat-rippled Kapton diaphragms... but speakers are another matter entirely.
Take a look. I almost fell over when I saw an old darkroom chemical, paraphenylene diamine, being used to increase the stiffness of Kapton.
http://www2.dupont.com/Kapton/en_US/assets/downloads/pdf/fpc-tab.pdf
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Ortho cookie hamster? Cookie ortho hamster?
Cookie the Orthohamster! perfect. He'd be like Rhino in
Bolt, except he'd be a headphone geek.
And anytime someone took a good photo or successfully explained a puzzling headphone phenomenon, Cookie would show up to
give that person his cookie.
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Hey, I'm wanting to replace the headband on my Pro 30. Does anyone know of a folding, metal-framed headphone set that's cheapish? The Pro 30's got a 2" diameter yoke.
You just need something that folds? or does it have to be metal for a different reason? Since the thing was in all probability an Audio-Technica OEM, take a look through their catalog. I'm thinking FC700?