Reply to Looking to make a certain kind of sound in dubstep

Right now this is my favorite track, I want my bass to sound something like how the bass sounds at 56 seconds in:

http://www.youtube.com/watch?v=vbZ1IyMocsc


I'm new to making dubstep, and ive been trying to read up on producing it. I did one track, but the bass in that is just a regular sine wave so it's really smooth. A dirtier bass sound is what im after. I've tried messing with the simpler, sampler, and Operator in ableton and just cant seem to get it how I want it to sound. So does anyone have tips for getting my sound closer to that in the video?