Summary: This is a highly recommended choice and one of the most favorable cans for people looking for an open headphone that provide great sound stage/SQ for movies/gaming. It may not be the best to suit for all types of music but it does fairly well for its distinctive sound signature. Strong and proper amping is required for the 600ohm to sound its best.
Pros: 600ohm version provides smoother sounding but requires proper amplification to drive it proper and to its true potential. Excellent sound reproduction across the spectrum with slight boost in bass/treble frequencies. Dynamic and engaging sounding. Very good sound stage, clarity, detail, and it's most suitable for genre that favors in bass/treble. Fairly comfortable
Cons: Recessed mid (laid back vocal). Initial headphone clamp is a bit tight but it will get back over time once the paddings settles in and headband stretched out.
Summary: First let me say that I own many great headphones including the ATH-M50 and AH-D2000. I also use a Grace m903 for most of my headphone testing as I find it a neutral sounding amp. I was looking for a headphone to compliment my AH-D2000's both in design and sound signature. The D2000 being dark, slightly bass heavy, and closed made me want something not as dark, more imaging based, and open. I tried Grado SR225i's, Grado RS-1i's, and the Beyerdynamic DT990.
Summary: Last year I bought Beyerdynamics DT990 Premium with 250 Ohm in a custom design:
I really love their design (Of cause, I also designed them in some way :p)!
The opportunity to create your own, unique style for these high end cans is pretty cool.
You can do this on beyerdynamic's website, but it's probably a bit more expensive than in other shops.
(besides the cost for your design).
I love the not-so-neutral sound, with slightly more highs and bass.
Summary: I reviewed the 32 ohm version of the DT990 Premium Open headphones and I have to tell you it was a joy.
I'll touch on the major points here but if you want to see my full video review or read my written review, you can head over to the link below....
Briefly, here's what I loved about the DT990 Premiums.
Pros: Accurate Bass, Lush Midrange, Comfort, Build Quality, Nice Soundstage
Summary: I have only just started using the headphones a few days ago but I really recommend them. The sound quality has been excellent out of the box, as I am still wearing them in, but so far very impressive.
The sound stage is considerably wider and easier to distinguish different instruments or 'layers' to the music. They are also great for gaming, detailing the exact locations of enemies and allowing me to hear echoes and high pitched sounds that i never heard before.
Pros: High and detailed sound quality, Large soundstage, Good bass, Comfortable open headphones
Cons: Quite strong treble for some people, slight issues with build
Summary: The new and improved Beyerdynamic DT990, complete with shiny metal grilles, tackles the high-end headphone world with a fun sound that is yet relatively less compromised by coloration than the most commonly known "fun/rockin'" headphones, Grados. They retain the typical high standards of comfort and build quality for a moderate price, that Beyer users have come to expect over the years.
Summary: I bought these a few years after my MB Quarts finally died [sad day], for late night listening and /or TV. I auditioned the DT931s as well [through a Creek w/NAIM front] and found them way too bright. I looked for some time for new MBs, but no one had them and the US rep in Mass was incredibly rude and unhelpful. I find the 990s to be somewhat recessed and on the dark side of the spectrum.