I purchased this cable a few months ago from Double Helix Cables (Scootermafia on Head-Fi).
My Sennheiser HD650s have been sold to audio-hunter, so I no longer have use for this.
It uses 6N UPOCC copper wire, it has nylon multifilament sleeving, and terminated in a Neutrik 4-pin XLR.
I'm looking for for SOLD inc. P+P within the UK, pay via Paypal.
Double Helix Cables charge £155 for these new.
(This should also be compatible with the HD25 series, please correct me if I am mistaken).
Thanks for looking,
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Edited by P4Z - 10/6/10 at 3:48am