As this appears to be the only thread thus far on the subject, let me add this for those searching..
Ive been looking as well, refuse to pay above prices and do not wish to completely make one of my own..
On the famous auction website, there is a seller called "sunricky" (*no affiliation whatsoever*)
For the AKG K450 K480 and Q460 .. 4 braided silver plated wires, gold connectors. They call it the "White Angel"..(perform a search)
It is $40 ..which is very reasonable. Would this not work, even if a bit of coaxing is required?
The connector on the other end may need to be modified or replaced, nevertheless, a good deal for a custom cable in my limited experience.
I don't know if that outer sheath on the 2.5mm end will need to be removed, and also it is a 3 phase end, not a two phase as on the P5 as the AKG headphones above are sound canceling and I believe it has to do with this..it may be simply ignored and still be usable... or again, the entire jack simply replaced.
Nevertheless, the cable gauge is about the same as the P5 and I feel confident going for it.....thoughts?
Preparing as I await the P5...Im still thinking...will update if I choose to go that route which I very well may...
There ARE also other cables made for MP3 use I have fond available that are the same type as that which come with the P%, flimsy and simple, with the elusive 3.5 to 2.5mm ends, gold plated, at 60-70cm which can be had for a song if i a bind.
Sennheiser has one that would be ideal (if a non custom option is what yo want) for, I believe, the HD 200 (an older model apparently) ...though it seems only to be available at 6ft length.
Most of these sellers seem to be from HongKong. Sometimes one needs to perform a search on eb@y.uk or eb@ay.de as they do not list directly on the US site. I seem to have gone the gamut with most of them asking questions, and they all were very genuine, helpful, responded to questions immediately, and shipped internationally. For some reason, some were not listed on the US site. (These were all the generic MP3 2.5 to 3.5mm cables at about 60-70cm length)
Anyway, that's all I know..
Thoughts appreciated. Hope others can contribute to this and it's helpful to someone.
I need to research more, but will update should I go this route or with what I choose (fwiw).
Best