What High end cans are there anyway? The HE-500 is too bright, same goes for hd800 unless you spend alot on the amp, T1 is too bright, Denons are closed.
The only thing left is the audeze but i've heard mixed things about them. I didn't spend enough time with them to really know. (plus they don't fit on my head/feel awkward)
The HE-500s really aren't too bright. They are quite neutral, and with some pad modifications it gets even better.