I purchase a pair of the mdr-v600 about 4 year ago and have be really happy with they . they be very comfortable and I often wear they for hour at a time . I have be really happy with the quality of the sound . I have never have another pair of good studio headphone like these , but I would guess they sound as good as comparable brand and model . even after year of use I have not notice any loss of sound quality . I highly recommend these headphone .