What would you use to drive the new woofer. The klipsch sub may do it. I run a 8" with no problem, but you are talking about a lot more than one 8". If you or a freind has a 8" of 10" sub in a car. Connect that to your klipsch sub amp. See if you get the hit you want. I get all the bass I want with the 8". My room is 12'x12'. Good luck