Hmm, well after listening to these for a while I'm noticing something. The bass impact does not compare to my HD 650's. It's detailed (but so is the HD 650) but simply cannot produce that deep deep impactful sub-bass of explosions in video games, movies, etc.
Using an equalizer I've realized that my HD 650 is just toned down in the treble which makes some things (voices, gun shots) sound less crisp unless corrected with EQ.
Sadly, boosting bass on the AD2000 does not make it impactful, while boosting treble on my HD 650 does retain the impactful bass so I get the best of both worlds.
I originally bought the AD2000's to be an open headphone that sounded like my SRH-940. Ultimately they do not sound nearly as detailed and crisp as the SRH-940, even after being equalized.
Edited by ac500 - 9/23/11 at 4:38pm