I have a pair of Koss Porta Pros I purchased a few months ago. I haven't used them in the while because there is something wrong with the wire going into the driver. Update: I just used the headphones after a while and remembered it's the wire at the plug that needs to be held in place. The wires going into the drivers are fine :) I have to hold the wire in place in order for it to work so I'm guessing it's just a wiring issue.
I just upgraded to I'm selling these incase someone is interested in fixing them up or using them for parts.
$25 Shipped CONUS
Edited by MuZI - 11/6/12 at 3:42pm