How is this Bass-Sound made?

The Moog Forum Little Phatty & Slim Phatty Forum
1

Hi i´m questioning how this nice bass sound is made?
As i think it´s a Minimoog it should be possible to emulate this on the Little Phatty to! Just click on the link to listen a short sample (real player needed)
Best - Ewa

http://www.music2license.de/music2license%20-%20short%20versions%20for%20web/CHICAGO%2017%20-%20PLEASE%20HOLD%20ON%2001.ram