Hmph....I have Hypersonic 2....as far as bass synths I've got Trilogy and Novation...i've gotten tons of bass out of those (trilogy's got some pretty good sines) but nothing like that one right there.
I run my synth through a Hartke bass amp which has tube and/or solid state, and when using just tube, my drums sound almost identical to that song. Anyone else ever use a bass amp w/ their keyboard? I don't hear of a lot of hip hop producers using one - it really adds punch to your sound - try it. You might try that. Its definitely an analog sound that makes it so warm and clean. As for the bass and kick hitting together, thats not very unique. A lot of bass plays on the kicks. I actually thought that synth bass was too syrupy when I first heard that song. My fav. synth bass in rap was on "Sideways" by E-40/B-Legit. p>http://youtube.com/watch?v=-4shZzbpWXw