And thanks for the great feedback so far!

My mistake; I've already changed it. I meant the K267 Tiestos, not the K271s.

And anyway, for your purposes, I'd imagine the K550s would get the job done pretty well—although you should check out the PSB M4U 2; it's pretty new, but has gotten rave reviews from most folks here as well as various highly-regarded outside reviewers—just won Sound and Vision Magazine product...

I'm also looking to get a pair of closed over-the-ear cans in the nearly immediate future, maybe slightly under $500 but still same ballpark. Here's the list of the choices I'm considering—I figure this might help you, and if not, I might be able to get some feedback on it for my own. I'm going...

Also adding to consideration: AKG K267 Tiesto

Hey,   To add another headphone to the list, how does the Philips Fidelio L1 stack up against the K550s, the M4U2s, and the Momentums?

Hey all,   I'm relatively new to the audiophile headphone market.   I currently own:   AKG Q701 Sennheiser HD 555 Sennheiser PX 200 II   Right now the only headphones I bother to amplify are the Q701s. My amp is a cMoyBB v2.03 from JDS Labs, and it makes the Q701s sound a bit...