So yeah, after messing around with the dsps I found that a custom wave sample(with looking for a bass sound) coupled with a lowpass filter behind a lofi-mat creates that "yah" sound in dubstep.
I've already auto assigned the macros so that you don't get the undesirable harmonics in the filter past 0.77k.
I've made it manual since it's fun to assign with knobs, of course you can easily give it an LFO specifically tailored to your bpm.
I added a key tracker attributed to distortion in order give it a little more texture, Have fun!