Heh, flat's kind of subjective and very relative to the source (the recording). Everything's mixed to certain perception, there can't be completely flat presentation.
My view is that they're not overly emphasized anywhere. There are no clear transition problems within the spectrum of an individual instrument, or so I hear...
I'm not one to "preach" about burn-in, but they're actually quite a lot smoother than when I first received them. This could be that I've gotten deaf in the treble region, but not so much that I've gotten used to it since I do have a lot of reference around me to check. I say this because initially, while they weren't overly bright, they did have a bit of a peak at the top. Bit brittle with especially crash cymbals and hi-hat. The response is much smoother and dynamic now, allowing me to distinguish differences in tone, volume and pitch of a high FR instrument, such as cymbals. This was somewhat fatiguing, but is no longer.
Edited by electropop - 12/15/11 at 7:38am