This is a signature sound of the brilliant Julio Bashmore. It could be created using an 808 kick drum, but I have set about recreating it in Ableton with the 'Analog' Synth and some Compression.
It is an Instrument Rack. Please Download the attachment above.
Following a request, I'm also attaching a midi file of the bassline (Bashmore_Bassline.mid)
Here is the whole track on YouTube..