Originally Posted by briancl
I also love my Senns, but they are a studio headphone and their sound doesn't lend itself well to casual listening.
Everything else you've written is a matter of taste, though I'd urge you to listen to the Koss KSC-75's, which are now only $15 at amazon.com, before dismissing them out of hand. A quick survey of head-fi.org suggests I'm far from alone in this assessment. But beyond that, this sentence makes no sense to me. I'm not a studio guy, I've always thought that isolation/lack of leakage would be important in headphone studio monitoring, and closed cans such as Sony MDR-7506's would be far preferable to something that's basically wide open like the Senns.
Indeed, the super silky liquid smooth and lush sound of the HD-600's would, I think, be a very bad thing for people mixing music. You might get a feel for how it'll sound to people with Quads at the end of their stereos, but it will tell you nothing as to how music will sound on boomboxes or car stereos. Or boom-tizz machines like iPod earbuds or Grados...
Then again, maybe my tastes are off because except for the Gradient Preludes on my desk at work speaker I've ever really loved has been a midfield studio monitor or dressed up version thereof.
Originally Posted by =briancl
And, with all of that said, I use my Ety ER-4s's more than anything..
Right now, I'd say that I actually use the cheap Kosses the most. My division of labor is Sony MDR-EX71's for commuting (hopefully to be replaced by the Altec IEM's I just ordered), Koss KSC-35 for exercise. Etys for air travel, and Senns for home listening. Rarely does a set of headphones see use outside the above parameters.