After a long search for a very good headphones that could make my cd and mp3 collection shine, I'm FINALLY very satisfied! After testing and owning several different headphones from renowned brands and despite having some doubts about this brand; I have to say that HIFIMAN's Edition XS are great headphones! They have non fatiguing, realistic midrange, are not veiled in high frequency range (but still are not harsh to listen at all) and have very linear bass that reaches very low (especially for opened back headphones). Bass in not boomy, but linear which might NOT be prefered by boosted bass lovers. This pair of headphones are very nice for music enjoyment and after pressing ''play'' I can just listen them for hours. As everything has and some bad points, these headphones have two in my opinion: headstrap could be more comfortable (some people after some time might find it not so comfortable) and headphone cable could be a little longer. But fortunately, both problems can be solved by buying additional headstrap and longer cables. All in all - very satisfied with this product and I'm seriously considering to buy another set (or maybe even a more expensive headphone set from HIFIMAN).