I like to think that I imagine (mainly in a bassline btw) there are a bunch of frequencies, and I almost want to have the essentials of those frequencies in a sense. I end of up with hollow basslines because of this, just loads of filtering, possibly distorting them again would bring back that kind of hole that's missing I guess, but I'm not sure. I constantly think of those resonant peaks when I am doing processing, imagining the unwanted frequencies being exaggerated further with a chorus or such things. It's why I like graphic eq's so much, I can just kind of get a general improvement of tone real quickly in between each effect. http://soundcloud.com/tatilla/dnbforum-example Look like here (oh and that snare doesn't sound as punchy as the kick, hmm) Does that bassline seem hollow?