Excellent, very precise headphones for mobile devices

For a long time I was looking for good-quality to high-quality headphones. After several bad buys and the disappointing Try various models I landed at the Beyerdynamic DT 990. I opted for the 32 Ohm version because I want to run the headphones to my iPod.
After several days of use, I am very happy with the headset.

The workmanship is very good. The headset is light and wears comfortably. The ears are completely enclosed by the external ears. Since I use the headphones at home, I can get over the length of the cable and the absence of a plug which the cable separates from the headphones at excessive train.

When music playback is striking that the headphones extremely precise working: all tonal ranges are cleanly, not blurred. Bass is available and is also very good, but not mushy, as with many effect headphones, reproduced. The precision is given, of course, with votes. A "hissing" I can not tell. Overall, the playback is very spatially and airy with a rather strict precision over all tone ranges away.