I can't believe you don't have enough bass from that set up!I am assuming you have calibrated and re-calibrated trying to get the ooomph you are looking for. What processor/reciever are you using?In my opinion, I would probably stick with Def Tech and try out the reference sub as a fellow Def Tech owner.I would be suprised if your local dealer would not let you audition at home, mine did.let us know what you decide.