Sennheiser HD 600 Open Dynamic Wired Headphones with Adapter

I got these wonderfull headphones after searching for a worthy replacement of my first serious pair of Sennheisers, the vintage HD480 classic II from 1989. I still have them, and besides the replacement of earcushions, I really like how they sound -still- after almost 40 years! Back to the HD600: As a serious music lover and owner of a small project recording studio, I appreciate their transparant and balanced charmanter. I wanted a pair of headphones that translate the music honest and clear. And that's what they do. I can use these to mix on, albeit with some room correction plugin, but the main purpose is to listen to music. They are very comfortable, not too heavy and the build quality seems decent! I also like that they are made in Ireland, just like my HD480 classics. At first, I wasn't sure if open back headphones are something I would like: (majority of my other headphones are studiograde closed ones), but: the open back design makes them breath more, withouts sounding thin. Well done again, Sennheiser!