After 7 months of long and many hours of listening, I can confirm and tell you without risks or fears that this helmet is a supreme reference in the world of audiophiles. Ergonomics, through the finishes up to her, this headset is a perfection to which it will offer decent sound sources excellence ...
And after use with a suitable source, nobody can say that he has no ears! And the return to a lower product quality may be very painful. From bottom to top in the spectrum, it is difficult to take if the K702. The bass is present just right, but still very deep. Of course, no question of audio puree or boomy bass is clean, dry and free. In short, a real little monitoring headphones !! In the middle of the spectrum, again the helmet hit home. The sounds are present, robust, without creating stifling mass. The voices take the opportunity to be very busy, living without much prevail over the rest. Finally, the highs are probably the most attractive part of the K701. Slightly pushed, they make music much more lively, more recording on live stage.
The K702 is clearly a reference headphone for all types of sedentary uses besides being cheaper than the K701 version, it comes with a detachable cable. you will find that I am not even talking about the Q701 is a scam overpriced, nothing other than the K702 with a colorful logo Quincy Jones (famous jazz man who worked on Michael Jackson's Thriller) sold 200 250 more expensive!
Good to know: Although it works best with well-adapted sources (dedicated sound cards, headphones amps), he only little compared to its competitors, thanks to a limited impedance, which gives it a certain mobility ( it will run on your ipod, psp, vita eg serte has a moderate volume, but it will be usable.)