I am putting up my TH900 for sale. It has been very rarely used at all and has been stored mostly in its box. Cosmetically it is excellent, no scratches on the ear cups however there is a tiny (less than 0.1mm) chip on one of the ear cup holders, and this is how I received it straight from the Fostex factory.. Please check the pictures.
I approximate my total usage at about 10 hours. I am the first owner.
-Original Fostex box