I haven't listened to my HD600's for quite a while, been listening to the HD650 and HD700's. I put them on again last night and I hate to say this but I really don't like them much any more. The mids and treble are okay but the bass...where did it go? Anyway I don't need this many phones so I think when I have my clearance sale the 600's will be going. I even like my HD580's more which I didn't think I'd ever say.
Yeah, I came to the same conclusion while testing both out. I think if you're looking for a more reference sound without the 'cold' and 'analytical' nature of reference headphones, then the HD600 is the answer to that. They're generally more revealing, IMO.
Same here. It is coming down like there's no tomorrow out here.