I find the C3 to be bit of a strange one, it didn't like my FXD80's but gets on very well with my EPH-100's
The biggest surprise for me, it adores my thermaltake isurus, my least liked iem has now turned into one of my favourites.
It's such a natural sound, you have to hear it to believe it, the two pair together so very well.
I Would say audio technica phones would pair very well with this unit.
I find your claims exactly the same, I think there's a lot more to it then just the IEM's signature as well, such as impedance and other technical things I don't know. Because my Sony MDREX600 completely transformed into something wonderful with C3. Very natural, vocals were upfront taking advantage of the slight mid focus. And others in my collection wouldn't grab hold like that. But the H-100 is a sure thing for C3.
Edited by H20Fidelity - 11/11/12 at 3:36pm