I realize this is a bit of a long shot, but can't hurt to try nonetheless.
I want to trade my Grado SR-80 phones for a some Sennheiser HD-580's in decent condition (7.5+/10). I will include the bowls and the yellow senn pads that already have a hole cut out in the center. The phones themselves are in almost immaculate condition (around 9.5/10). I will include all the papers, the warranty card and the adapter.
The main reason being, I want to try something other than the Grado's for once. Further experimentation to find my ideal sound.
I'm looking for someone that has already bought or sold on this forum at least once or twice - to ensure I'm not giving my headphones away.
U.S. only because shipping charges are too high otherwise. P.M. if your interested.
Note - I realized this whole thing is a bit unrealistic. The HD-580 are much greater in price. I would, however, still trade for some AKG K401's which seem to go around the same price at this forum. If you by any chance have these and want to get rid of them P.M. me