I do like the neutral sound and soundstage that they offer for a closed set.
Sadly, I will need to send my K550 in for a repair but don't want to be left with a pair of crappy headphones for awhile so i'm looking for something.
My source is a Audinst HUD-MX2
I'll consider open options as well but closed is better for my use.
Edited by pclov3r - 1/17/14 at 12:27pm