For sell is a HD540 Gold Reference (HD540G) 600 Ohm version. The condition is very good for a headphone that is almost 30 years ago. HD540G is famous for its unique sound that is turned to be very close to an electrostatic headphone like Orpheus. In the meantime it has better resolution and soundstage to the 6XX series. HD540G has 2 versions, one is 600 Ohm and another is 300 Ohm. The general consensus is that 600 Ohm version is significantly better than 300 Ohm version. The price is 400 with PP fee and I will cover shipping fee.