Thanks, billybob, Hope it would be possible before purchasing. I will compare it. with my active Psb - they are Great.

Hello, grado PS1- what is so extraordinary ? Its possible that I with my 70 years Old German ears can hear it? I have had Bose qc3, qc15- good for Noise cancelling - but Not for HiFi. AKG 701 ( very good), newest psb m4u 2- best in active Mode. Now I can get ca. 5 years old ps1- very...