that sounds like its done by using fm synths with some lfo hi / band frequency shiz going on for cuttoff, i'll make a patch for this sound soon if i get time as everyone likes it... but theres probably a shit load of units that can make this sound with a bit of playing around. thing is - it isnt just the generator usually.
you will need fx to help it thicken out, like ohms delay work / HD chords / Chorus etc. Then, units ship with loads of fx built in.
-sub bass is nearly always generally two sines in octave from eachother to cover octave shifting in nu school.