I purchased this headphones about a month and they sound just great.Best this is the clarity , which is must for studio monetring.They are not bass heavy but still good to listen.Whereas M50x are good on bass.It has 40 mm drivers which produces very rich mids and highs with great clarity.Cables are tangle free and not detachable.Build quality is good too.Earcups are rotatable uptp 90 degrees