They've been on my list for AGES. I was posting in this thread a while back. There was just something about them that really appealed to me, and I can't figure out why. Maybe it's the way they look like a baby HD800, or that reviews were absolutely everywhere with what they sounded like. Some called them a bigger HD650, others a small HD800, some said they were bassy and dynamic, others said thin and piercing. Maybe because it felt like they were the ignored step in the line. Everyone either called the 650's the overall best in the world, or the 800s the king of the hill. I really don't think they're nearly as sharp as they're made out to be. Maybe on a solid state amp or something, but I've been sitting here trying out a bunch of metal albums that I know can get painful to listen to if the headphones are sibilant and it just ain't there. Maybe there were quiet revisions like the HD650? Dunno. I just really like 'em.