OK - so I've caught the head-fi fever and bought too many headphones in the past several weeks, and now I unfortunately have to give up some of them.
I've decided to keep my HD580's since I have an amp for them and I'm selling my brand new Audio-Technica A900 - they are only a week old and have no more than 5 hours of play time on them. They are in perfect brand-new condition, hardly used at all. I have the original box and everything that came with it (the warranty slip and the 1/4''-1/8'' adapter). If you want to get pretty much brand new A900's for a lower than $211 shipped Audiocubes price, this is your chance!
Price: $195 /w US shipping included
I'll take PayPal and I'll absorb the PayPal fee.