"initial reaction: i had to burn in my hd-650s for 50 hours but putting these on straight out the box they are sounding good. the bass is less heavy and more balanced, i think more accurate. the stereo field sounds very nice especially on the highs. they definitely weigh a lot more than the seinnheisers which will take getting used to."more
Between these and my Focal Twins/Sub I always get a good mixdown that translates. They reveal everything and don't sound harsh while doing it. The only downside is they're heavy, so I can only wear them for an hour or so before needing to take a break. Perfectly balanced across the spectrum though, from 20Hz to 52Khz, with ample dynamics (so long as you have a good headphone amp or your audio interface does).