i love koss prota pro, the sound is really nice and is very comfortable to wear it, but my n1 drive it not well, but for ej2000 it's nice , you can get from hung brother
i also have sony mdr888, mx 500, ex70 lp, sony mdr 847sp, px200, i love 888 the most , i love the way it sounds (i like the vocal music and soft music), mx500 is really nice for its price.
i am not really like my px200 because it sounds too real.