Up for sale is a USA version of the Stax Omega II, Mark 2 in pristine condition. I purchased them in late 2009 from the original buyer who barely used them, and I myself have used them less than a dozen times. They'll come with the cool metal box, which is also in excellent condition. The sound is terrific, particularly with a Headamp KGSS amp (which I'm selling in a separate classified), and I'm only selling my electrostatic system to devote more time and money to wildlife photography. Anyway, these phones have been treated extremely gently and have never left my non-smoking home or been touched by children's grubby hands. I'm looking for $1,800 (which includes basic shipping CONUS and Paypal fees using the gift option) -- these phones currently go for $2,600 at Elusive Disc and even $2,350 at PriceJapan.
My feedback (both old and new) here at Head-fi is immaculate, as is my feedback under "electrathecat" at Audiogon, eBay, Nikonians, and Fred Miranda.