i listen to all music, but if i had to narrow it down..... id say more leaning towards 70s rock along with house/electro.
When i bought these i guess i was expecting this endless perfect deep profound bass when i chucked on a electro but also had clarity with the rock.
I dont think im going to get a very good balance with these cans. I dont to be able to get that massive thump from a drum kick but also get the gradual deep beats of a rnb song. The problem ive got at the moment is that ive adjusted my levels for everything pretty well, the i put something like this on (please dont attack the song... old favourite, love the bass line) http://www.youtube.com/watch?v=GsyJVv-9ygM, the cans just distort and i find myself either turning down or adjusting it.
In the back of my mind of got the idea that an amp would help that but theres also an element of doubt.
I think there is something wrong with your system. I get zero distortion even if I EQ bass quite heavily. Mayby you could try different source (mp3 player maybe?) or turn off all EQ settings. (like someone said, EQ only when you really know what you are doing).