DnB How to make this style of reese bass in reason (see link)

[The Stockbomb]

http://www.youtube.com/watch?v=ypInk0am0vQ

I have been trying to recreate this sound for a while but with no sucess, i am relatively new to reason, anyone out there who can offer up some tips???
Original Sin tends to use this style of sound quite often too....


Thanks in advance