I own the D7000 from Denon and they are incredible for dance/electronica/trance. Also great for rock. If you like bass, you'll love them. As for the HD600/650 argument, it's really all opinion. My friend and I own each (me the 600 and him the 650). We agree the 600 sound better (more neutral and direct). However, just an opinion. As for the extra bass on the 650...well that's why I have the Denon cans.