Couple of words about metal music + Beyerdynamic DT250. (Summary on impressions on metal for 47 headphones is here http://www.head-fi.org/t/715478/headphones-for-metal-music-ultimate-solution)
Beyerdynamic DT250
Professional cans with very special, extremely flat character. It was interesting to try such a device on metal.
When I listen to 250, I can not shake the feeling that I listen to E-MU 0404 (regardless of amp/DAC I used). Unforgettable dry taste.
Bass at 250 is quite good, not elevated, in general, sufficient for metal. Mids are nice and smooth. Tops with a slight touch of "darkness". Chamber soundstage. On high-speed genres tend to smooth out attacks - perhaps the most conspicuous of technical problems.
Positive:
Black: Wow, this is something there. Does not involves as Beyerdynamic 770 or V-Moda M-100, but detached, mechanistic, darkish interpretation makes the horror to move somewhere in the depths of the body. Impressive.
Death: Shivers the size of a mouse are crawling on my back...
Negative:
Alternative: It is acceptable in terms of tonal balance (admittable bass volume, mids and hight are okay). But comrades 250 are very detached. No emotional response. All the time I want to add volume, but does not help anyway.
Industrial: No core competence - 250 does not have distinct sub-bass. Bass thumps, but to no avail.
Power: Genre is supposed to be funny, entertaining. And here, as if the school teacher of music is back. With the same zeal and drive.
Heavy Metal: Stressed, radically anti-involving performance. Highs and mids are gray, no fun on bass.
Grindcore: Soft attacks, as if the sounds are rounded. Not a problem for a slower subgenres, but here it is really disturbing.
Grand total. Cans for fans of a specific "professional", "flat" sound. Either you like them and then it's possible to throw on them any genre you can think about. Or do not like, so behold the results of my review.