I have one used, but in greatcondition Fixup cable for the Etys ER4 line of headphones. These are designed to replace the stock cable, and are less microphonic than the stock cable. Also, the ends of the cable are shorter, meaning the etys don't stick out of your ears as much. Here's a link to the site:
The ones I'm selling are the "super-light enhancement cord w/ gold-plated plug" that go for $44.99 on his site. These cords have an impedance that's between the ER4P and ER4S. I think it's like 50 Ohms or somewhere in that ballpark. Selling because I l prefer the slight bass kick of the ER4Ps, so have switched back to the stock cable.
Asking $35 shipped obo for the cable. PM me if interested. Thanks!