How to Make The Best Dubstep Bass Sound

There are a few synths that can get a great dubstep bass.
Roland Juno 60

The Juno 60 is especially useful for getting the wobble sound that so many dustup producers are seeking. The LFO can be routed to the filter. With out midi to DCB controller, we can also sync the LFO to midi clock, allowing for rhythmic, beat synced wobbles. There is a character in the filtered square wave of the Juno 60 that I recognize in many dubstep tunes. Juno 60 Dubstep Wobble by deepsignal
Korg Prophecy

The Prophecy has a great sub bass patch called Jungle Bass that we have used in many tunes that just rattles your teeth when played through the right system. Prophecy JungleBass dubstep bassline by deepsignal
Roland SH-101

This synth has a flatter character compared to the other two, but it hit the right sub frequencies. You can even set it up to make a nice punchy kick drum sound.

I recommend an infinity to 1 compression ration for sub bass parts. You should also be careful with your overall mix compression settings when dealing with sub bass so that when it comes in it does not suck the volume out of the rest of the tracks.