I think the AKG K701 is the best dynamic headphone you can buy, and perhaps any electrostatic set up.
This assumes the AKG K701 is properly amped.
Go to:
http://www.enjoythemusic.com/superioraudio/
then go to archive reviews, and click on the one for Nov., 2006
The reveiwer compared the K1000 and UE Pro to the K701 and concluded:
"You have to admire the dedication of the engineers at Grado, Sennheiser and Stax, who continually polish and improve their designs, adding refinement over succeeding generations of phones. But I take my hat off to the AKG developers for thinking outside the box and coming up with radical innovations which challenge existing thinking and push the state of the art on so many levels."
"The AKG K701 is one beautifully rounded performer. Top shelf sound, superb ergonomics, a competitive price and no quirks. The new reference has arrived and I'm not letting it go. Anyone wanna buy my K1000s?"