Song Name: Short, low and dirty
Link to the song: http://soundcloud.com/lame_duck/short-low-and-dirty
http://soundcloud.com/lame_duck/short-low-and-dirty
Tutorial-ette:
1. The initial bass hit is nothing special, though I have modified it at 21secs, 47secs and 1min43 by editing automation on the LFO1 waveform. This was done with the pencil tool and purely by experimentation - see pic for a snippet of the waveform and the notes:

2. The buzzy bass that kicks in at 1min8secs is achieved through setting Thor's shaper to Soft Clip ( a few other settings work well) and maxing the drive. Amp env sustain on full, and a compressor as well - see screenshot for full details:
