The HD600 could be a huge step forwards or "backwards" depending on your prefence. It will undoubtedly be superior to your retired Sr-80 in detail, soundstage, and fidelity but is also considerably more "laidback," something that you might not like coming from your Grado that you loved.
I'd recommend that you give the Senn a listen before buying.
Originally Posted by fewtch
That's quite a bold statement... how many of the Sony models have you heard? (just wondering... I assume you must have heard quite a few).
Fanboys base most opinions on assumption
I have the same problem as you, especially when I listen to Oasis or the Pumpkins, etc. with a Sony = major headache after a few songs even at medium volume.
The 580/6XX series has more than enough brightness and highs for me - and I'm more of a treble-head - yet I've not experienced any fatigue after hours of listening.