Up for your consideration is a pair of middle production AKG K501 headphones (V1 as described here: http://www.head-fi.org/forum/thread/227052/official-akg-k501-version-count). I would honestly describe the K501 as one of the most magical headphones I've ever heard - it just does everything so... right. The sound signature is one of the best I've heard in all of the full-size headphones I've listened to, which says a lot for something that was supposed to sit in under the K601 and 701.
This pair is in almost-new condition - I can't find any blemishes, scratches or scuffs on the exterior at all. Sonically they are perfect. The elastics are extremely strong and stretchy and will serve you well for years to come. The only issue is that I don't have the 1/8-1/4" screw-on adapter, which are pretty cheap to come by if you need one. Regular adapters will also work. The main reason I'm selling this pair is I'm trying to find room for another Stax setup at my listening station, so some of my auxiliary full-size headphones need to go.
I'm asking $SOLD plus PayPal fees to the CONUS, International pays extra for USPS Priority/Express International. Please send me a PM if you're interested or have questions and we can work things out. Thanks!