Beyer Dynamic DT 990 Premium 600 OHM Headphones

First off, these aren't nearly as hard to drive as you'd assume from their impedance. I was able to get decent volume out of everything I connected it to form a proper desktop amp, to straight out of the onboard sound from my netbook. They are of course, not being driven properly from something without an adequate voltage swing, but neither are they useless without a beefy amp.

On to the meat of the review. "How do they sound," I hear you asking. In one word, bright, or in two, very bright. Their metaphorical albedo is off the charts. The highs are quite pronounced, but in a very smooth and simultaneously crisp manner. Hardly peaky at all, without transient spikes leaving you constantly fiddling with the volume. On the opposite end of the spectrum, the bass is simply amazing for an open headphone. Its deep, plentiful, and tightly controlled, with the kind of snap you'd expect from a small sealed subwoofer. It doesn't have the same quantity, but the quality is...Read more

Hi all, Zombie_X from Head-Fi here with another review! This won't be as in depth as the T1's review but I will give you all the needed info.

The Beyerdynamic DT990 sound can be classified as being very treble oriented with slightly recessed mids (will get to that later) and having throbbing bass.

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GEAR USED:
- Source: PC via Pop-Pulse SPDIF-II (to Optical), Marantz VC6001 CD Player
- Amp: Woo Audio WA3+, Audio-GD ROC
- DAC: Music Hall DAC25.2 (with NOS Mullard E88CC tube)
- IC's : ZXAC custom made RCA and XLR cables

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TREBLE:
I find the treble on the DT990/600Ohm to be slightly smoother than the 250Ohm model. In comparison the...Read more

First off I don't work for any company even remotely associated with this product. This is an independent review. For years I've been a loyal fan of the Sennheiser audiophile series but when my hd595's started going under, I started looking for a replacement. With exception of the sennheiser 800's, all of their other models seem to emphasize too little bass (595's and under), or too much (HD 650) but the BD 990's are the perfect balance I've been looking for, even when I didn't know I was looking for it. I've never noticed the potential beauty of sound until I put these on for the first few hours during the burn in period. It was like listening to a flower bloom. If your still not convinced, go to [...]. These babies are at the top of their recommended list. I don't think I'll ever listen to headphones with the same expectations again.