I haven't been as passionate about hifi as I once was in recent years, so I'm looking to sell off a few of my headphones that haven't been seeing much use. I do not have the original packaging or paperwork for any of these. Paypal service fees and USPS Priority Mail shipping are both included in my asking prices.

Audio Technica ATH-AD2000: Note that this is the original AD2000, not the AD2000X. Headphone is in good condition, the only wear I see is some small white blemishes on the right cup (see pictures). Includes the original 1/4" adapter.
AKG K701: This is an early production model with a fairly low serial number (#2887). Condition of the headphone is good, elastics are still ok. There is some discoloration on the pads (this was present when I received them and seems to be pretty common with the K701's pads for whatever reason) but the pads seem fine otherwise.
Beyerdynamic DT-150: 250 Ohm version. Good condition with only some minor wear to the pleather earpads and headband, both are still perfectly usable. Note that the cable terminates with a 1/8" plug and I no longer have the 1/4" adapter for these.

I'm not interested in trades at this time. Feel free to PM me if you want more pictures or have any questions.