<3 I cheated, it's actually two basslines layered on top of eachother.
Thanks, I'm happy with the mix too - yeah, mastering my own stuff. I do it all with stock plugins in Reaper, my DAW of choice. I'll do a writeup of my process when I get home.
A Kramer bass, of the red persuasion. All I remember off the top of my head. Really happy with it, oodles of sustain.