I suck at describing things yo.
Airy is about as far as my thought process can think up of. Vocals are pulled back, seem to be v-shaped (that thing where treble and bass are moar forward right?), and then idkhowduhfrig to say it, it's like dull? Like the sound is a lot less rich or more of whatever the opposite of a rich sound would be. I don't mind listening to them though, especially casually. I also haven't heard anything better than a hd558/ath m-50/hfi-780 so yeah.