I recently purchased a whole new set up. Onkyo receiver, Z3 projector, Graywolf screen, OPPO dvd player, JBL Speakers. But after all of that there was not much left for a good sub so I ended up purchasing the JBL 12" sub. I believe it is the 250P, it is the 12" model. It seems to hit one ( and only one) note very well, everything else is to be desired. I plan on getting a new sub next time ( another svs or possibly IB) the tax man comes around but until I need to make the most of this one. ANy tips or tricks of what I can do? I had thought about dropping in a new driver, would that work? If so, what would work? Thanks in advance.