OrpheusI realy don't get what the big deal about the Orpheus is, besides the delectable-looking amp that comes with them, and of course the price tag, which I find to be silly. I suspect that most of the hype comes from people who haven't heard or even *seen* them.
I've heard them at length at an audio store in Berlin, Germany (don't remember the name exactly, but they were right off Ku'damm near U1/U15 Uhlandstr. on the opposite side of the road from the BMW dealer, and they carried Acapella speakers) and I also had an opportunity to compare them to my '580s on their X-cans. For the types of music I listened to, the '580s were just plain better. In comparison, the Orpheus sounded slightly thin and reedy. (I listed to Bela Fleck's "Live Art", Gardiner's rendition of Holst's "Planets", Dave Matthews and Tim Reynolds "Live at Luther College", and probably a Mahler or Shostakovich symphony.) They did have a snappier midrange, but I found myself more disenchanted by the things they didn't do well on the highs and lows to really enjoy their splendid midrange.
The image I could not get out of my head was, the Orpheus is designed for a professional oboe or clarinet player, to hear *all* of the nuances of others' play.
For me, the choice is pretty clear: for the same money as the Orpheus costs, I'd take the 580s, a Total AirHead, and a custom-tailored Kiton K-series suit!