Well then ... then I am out of ideas :-( ... These are my sources and I have no further suggestions ... Good luck in finding what you need. Jesper

Hi ... I'm not sure I know of a source of wider mylar but I would guess that longer lengths are available from here - and still 0.5 micron: https://www.ebay.com/itm/Polyester-Mylar-film-5-microns-thin/113169978510 Best regards, Jesper

Hi ... 0.5 micron is available here in quite low quantities and from the UK: https://www.freeflightsupplies.co.uk/index.php/products/lightweight-covering-materials Best regards, Jesper

Hi Ed ... Well, I won't add much other than a bit of additional information that I personally find interesting: The free air "band-width" of a 1 um mylar membrane is 97 kHz and it derates linearly with thickness. Thus, a 3.5 um membrane will have a roll off frequency of ~28 kHz. Personally, I...

Hi all, Just wanted to link to this article which covers HF phenomena related to ESL design - although written mainly with loudspeakers in mind I would say that it is also relevant for headphones. I find it to be very practically oriented, yet also with theoretical sections that shed some light...

Hi again ... Hmmm, so noone knows about this ... ? Hope somebody here may know about this - possibly which company may be able to make such membranes. Cheers, Jesper

Hi ... There are quite some USB-to-I2S boards but some of the "well-known" ones may be: - Amanero: https://amanero.com/ - JLSounds: http://jlsounds.com/i2soverusb.html - diyinhk ... e.g. this one...

Hi Head-Fi'ers, I hope you may be able to help with this "challenge" of mine ... As it is I have for some time now been considering a magnestatic headphone, however, making/cutting a thin membrane is a challenge. So I wonder if somebody here knows which company makes ultra-thin membranes that...

Hi headphone people,   I have a question that I hope one of you may be able to "shed some light on".   As it is I am curious as to whether one of you have tried to use one of Audeze's (or hifiman's for that sake) headphones as a microphone? And if so - did you then by any chance notice what...

Hi again,   ... thank you for your reply and suggestions. I've looked at the link you posted and it could be interesting .. I may choose to cut out the foam between the driver unit and the ear but apart from that they look very interesting. I've also noticed elsewhere here on head-fi that - if...

 Quote:   Hi ... An approximate estimate of the size is that it is an oval and has a horisontal inner opening of ~ 65 mm and then appr. 105 mm on the outside. Vertical dimensions would be appr. 95 mm inner opening & 135 mm on the outside. It looks very similar to the pad on the image...

Hi Head-fi'ers    I have a question that I hope one of you may be able to help with ...    As it is I'm in the process of completing a pair of headphones which has a size similar to the Sennheiser HE90. To this end I am looking for some quality ear pads which resemble those of the HE90...

Hi again,   Just tried out the headphone this evening, yet it is conspicuously quiet. Just a very low sound in the right channel ...  ... It might of course be defective but otherwise I wonder if I've interpreted this connector drawing correctly:     I would say that this is the...

Hi NamelessPFG,   Thank you also for clarifying. It says "Signature" on top of the earcups and no signs of rebuilds - so altogether it looks like a Pro bias version ...    So off to listening (soon) ;-)   Jesper

Hi both,   & thanks for replying ... The plug is a 5 pin type so from what you write I need to make 580 VDC for this version.   Thanks again for replying    Jesper

Hi all,   I've been so fortunate to be able to borrow a couple of Stax Lambda SRs which I'll shortly be listening to with my new headphone amp. However, I don't know the pin configuration of the connector - any of you can help with this?   Greetings from Denmark,   Jesper   Hi...