To this end, I have to say that I have long been a Sennheiser HD600 Reference Headphone use and am enjoying my small but nice audiophile system every day anew. Such selected products there is not the space market, but you have yet to high-end studio.
To so enthusiastic I was when I tried these headphones: it sounded really good and completely stress-free, very "round" with pleasant bass, no distortion, no. Never thought that there are so cheap (33 euros!) A so outstanding headphones. Safe direction is audiophile even an increase possible, but it sounds just as comfortable as a HD600, this is more than amazing.
The shelf life is like everything cost be today: quite limited. But of all tested headphones sound by far the best!