I have a set of DT770 and the sibilance can get quite annoying on certain tracks. Guess the treble peak doesn't help either. This lead me to spend 500 dollars on the Sennheiser HD-650s.
Just about every audiophile headphone besides the real bass monsters and the HD-650 and LCD-2 are the only ones without this sibilance. Or was there a cheaper option I overlooked? Even modifying my DT770 drivers with felt only helped a little bit.