Selling my ESP950, don't have a need for it anymore due to O2s and so many other headphones. It is fresh back from Koss, good condition. Hasnt squealed for me out of the E90, NB jack of my SRM-1/mk2, or pro jack of the SRM007ta I had here, but does out of the pro bias jack of my SRM-1/mk2. The E/90 shows some marks on the face where I had to peal it back to analyze the bias circuit. You could certainly use the warranty to get koss to do further work on it if you had issues with squealing on your amp. I would like to get $435 shipped ConUS for it. I will be leaving town for a week starting this weekend, so if it is bought before then I can ship right away, but otherwise it will have to wait for me to get back.









