For sale is the Koss ESP 950.
I owned this unit for approximately 2 months with most of the time running in, but found electrostatic not my cup of tea.
So there is goes for sale.
Koss provide lifetime warranty.
Original box and leather case.
For customer in Europe I will supply an extra set of 230 volt adaptor.
Item located in Hong Kong, shipping cost to USA adds $25 and I shall borne the rest.
Other countries please inquire.
Check my feedback.