There's this too:
Found the K550 kind of thin sounding out of any amp and not clear enough for a $300 headphone.
Seemed to have this weird tonality that I remember hearing on the Creative Aurvana Live and ZX700. Kind of hard to describe. Sort of as if instruments sound a bit "off".
I disliked it enough to not give it 200 hours of burn-in, so I was hardly fair with it..BTW I did like it's bass a lot.
Can't say it enough, but it does a few things so much better than any other closed headphone. I just have no use for it.
It's mids were kind of lacking for me..somehow.
It actually sounds closer to a DT-880 than a Q701 or K702. Seems like it's focus was bass and treble and mids not as much.
Weird thinking that the SRH-940 and Q701 was actually much warmer and had fuller sounding mids