I wish I could demo a pair of those. I used to own hd598s. I know they are kind of far off, but senns do feel nice.
Edit: I remember them being being pretty tough to drive as well. Even harder than the LCD-2s which I actually found aren't so bad. Maybe I'm wrong. It's been a while since I've owned the 598s
Edited by j14mp - 3/23/14 at 8:25pm