The Sennheiser HD-590 is one of the headphones with the best representation of the audio spectrum in the world.
Type "open", it provides an exceptional cost of comfort even for long hours without tiring (dot trslger and foam protective thick and comfortable). Also it never gives the impression of swelling of the ears (with a lot of other frquents headphones).
I have 2 years now and this is by far the best headphones I've used. (More pro than the HD-570 and far more comfortable than raliste AKG)
I have these headphones for almost a year. Previously I was using an HD-500. The HD-590 uses the same style as the latter, it is also flexible (it can bend in all directions and let it fall to the ground without worry), it gives an impression more upscale than the HD-500. It is quite light, (I spent hundreds of nights with the headphones on without gene), its velvet cushions are very comfortable (much better than the leatherette of HD-500 but they are a little warmer) . Where the HD-590 is the greater the difference in sound quality. It is very accurate and very balanced (on the HD-500 bass were a little too pronounced). Mediums are very active, the highs do not saturate and bassent profondent (although I would have liked it to be even more). He made me rediscover some songs. The only complaints I have with him is missing for my taste a bit of spatial and volume level before saturation is not important although it should still push for the well saturates. Quality / Special Price. I am very satisfied.