It is a sound engineer student that made me test, I agreed on. This is an audiophile or studio (can be seen DJ ergonomics).
After doing to listen to a number of people, I think it requires a certain maturity to be valued at fair value: There is nothing "big", it is just right and neutral without lack bass. Thus the neophyte may think that the record is good, without knowing why, and this is where the key: nothing stands out, restitution is perfect! At first I just thought the treble was a little too present, I feel that it fades a little with lapping. That said, I have rarely heard so much detail in the top of the spectrum.
The sennheiser I've tested can go to bed, they always gave me the impression of being in a box and not be straight. Other AKG seemed soft. I had the AKG K271 MK II (which began to let me go) for 4 years before taking this one, and he was precise and clear ... but sorely lacking serious, and finesse in the treble, that is, I never knew how to mix effectively with. My K450 which I use on the move among others, is very powerful and quite right but lacks detail, especially in the treble. Anyway, there I take more pleasure than my Prodipe Pro 8 + box to listen to music, and mixing control is real ... I would say that given my speakers a little entry level, I could mix straighter with the headset. Anyway there's the reserve volume, and the reserve in the lower spectrum.
It fits comfortably on the head without miracles, but not annoying, one feels the hoop on top, but we do not have the plague helmet. Isolation is not bad at all, although sufficient for the average person, it would be more caps, and unpleasant! The spiral cable, one likes or dislikes, I'm not a fan, but I can live with. It still keeps me from rolling over it with the chair, for cons I have less in length with the K271, but ditto, I prefer this disadvantage where those of AKG. Even with the preamp my laptop (Galaxy S) so good.
In short, if you can test it before buying, you may be like me dazzled by its quality of restoration, otherwise if you are in an optical neutrality without concessions within 200, indulge, I trouble conceiving disappointment. Do not expect to get better for cheaper, for about 40 helmets tested under the 200 (including in a shop in Paris), I have never been so seduced ...