Modular Synth - Create low frequency sounds

Development Audio
1

Im implementing a motion platform that supports haptic feedback and Im trying to use the modular synth to generate low frequency sounds that rumbles the platform.
Im trying to get a specifik sound (around 30-33hz) like this: http://szynalski.com/tone#31

Im normaly a gameplay guy so working with sounds is something unfamiliar to me.

Can anyone here give some pointers?

Thanks,
Sebastian

2

This came up on a thread elsewhere and I tweeted about it – check it out.