[squarewave]

Hi,

My Sennheiser 595 turned bad the other day, naturally 5 weeks past warranty expiration.
The right cup has sound, no bass. No distortion, just like a sharp HP filter at 300Hz or so.

I think my 6yo used them as loudspeakers when gaming or something. Came home and found the Denon turned up loud - could hear music from the 595's clearly across the room. Nevermind.

Thanks to several posts w/images in this forum I managed to open them, and find the element as below.
As you can see, there's a big 4-5 mm deep dent in in the plastic, ribbed membrane bubble, which I guess might be the cause. Looks like it got whacked good, or prodded hard by eager fingers, but all the external parts are pristine.

So my question is: what's my best option to repair this?
No way short of finding another half HD 555/595 and scavenging the element I guess?

Would Sennheiser repair this? From what I see on their US site it would cost me about half the price of a new set to ship it to them and back. But if they guess that I fiddled with them myself, could they refuse?

Thanks,

|squarewave|