subfreak is a very simple 2 Osc synth for creating low down and dirty sub bass
It's designed for those who don't want or need lots of controls, hence only 3 things to change
Just play your notes a couple of octaves below middle C for that deep subby hum change the waveform of Osc 2 to add a little grit
http://www.delamancha.co.uk/subfreak.htm
http://www.delamancha.co.uk/plugins/subfreak.zip