I would wager most of the quality transducers out there (specifically headphones) cannot reproduce sounds outside the audible range with accuracy. What is the point if the data cannot even be reproduced?
and same goes for the "In The Court Of the King Crimson" HDCD, which sounds miles away from the CDDA track or any older copy I had...or these HDCD Beatles bootlegs, damn the reverb trails sound SO natural and not "quantized"(don't shoot!) like on the CDDA tracks.
and same goes for my Cubase mixouts...whether this is a projection of my brain is something I can live w/
anyway, thanks to Piccolo's tutorial I've managed to lower the treble resonances of my 770 to very acceptable levels, this is a far cry from no EQ I can tell you that
I'd love to kill all these resonances, but as long as they don't come in the way in an outrageous way(as they did before)...I'll learn to live w/ them
all headphones have resonances anyway, as I understand it...you can't expect to put drivers in a closed plastic can and not resonate