I've got to say I was a bit nervous about spending the money I did on these (especially without hearing them first), but I'm practically in shock right now. Even straight from my MBP, these are magnitudes better than my old HD650s in every way.
The soundstage is just massive. Separation is outstanding. They're so much faster, the bass is so much more precise and full, voices are so much more forward. Ain't no Senn veil here! The new Led Zeppelin remasters sound absolutely amazing. I can't wait to explore the rest of my library.
My Schiit stack arrives on Wednesday. I can't imagine what it'll all sound like then. This makes me feel like a total noob again! Weeeeeeeeeeee... back to the candy store!