Rob Papen has unleashed SubBoomBass on the Reason Rack! When I first heard about Papen releasing Rack Extensions this was the one I was hoping for:
"SubBoomBass RE has been carefully crafted to provide you with the tools to create fresh new bass lines. It includes unique tuned drum percussion samples which are great for Hip Hop and RnB basses but can also be used to add rhythm flavour to your tracks.
Also check out the innovative 'Wave-sequence' feature which will open up brand new sonic possibilities for your music.
Other features included are two effects slots which can be modulated using midi from any of the synthesizer parts."SubBoomBass is available thru 2012 at the introductory price of $79 USD!