dexter, you made a great point that i was starting to hit on but missed; if i can't hear the highs as well i tend to turn the volume up higher so that i can hear them. i also have this problem with the hd650s...because of the veil over the vocals, i turn the volume up much higher so that i can hear them comfortably, and this probably results in the rest of the sounds becoming far more damaging to hearing.
(just to note...those impressions are for unamped 650s...i'm sure with the right setup they can be an incredible headphone.)
and to jinx, as far as shure knowing about the high roll-off and it being intentional, i'm sure they do know it, but then again, if you look at the marketing material on their website, they have the se530s listed like this:
lows: ****
mids: ****
highs:****
so...isn't that kind of deceptive?