I read earlier in this thread (or maybe another thread) that there are versions that have black drivers as seen through the grills...those are the old versions apparently darker sounding with less bass. And then there are the silver drivers as seen through the grills which are apparently the new, (better sounding?) version of HD650. Others could confirm this...
I have the silver version and the highs can get up there on rare occasions, such as music with violins, but not even remotely close to the highs as my K702 or K550...and the it definitely doesn't lack bass.
edit: I'm also curious if the black driver version is more susceptible to the veil effect, because I have yet to notice it, except on really poorly recorded/encoded MP3 files
Edited by dxanex - 12/8/12 at 10:30am