Peak Time Trance in Ableton Live / 395

Phil, thank you very much for this great detailed tutorial! It's really amazing work, I've written down lots of tips and suggestions to try and learn.

I tried to reconstruct the off bass (PTT_OFFBASS sample) you used in the project, but to my shame I didn't manage to do it. It seems that I miss something in modulation part. Could you please give a hint on synth structure which could produce such a sound?