I have an Ampeg SVT610HLF driven by a SVT4 amp. Very happy except I really want deep sub bass and I'm not getting it. Was looking through Ampeg's website and saw a series called PN. Is this to be used in a setup like mine, kind of like adding a subwoofer to a home system? If so, can both cabs be driven by my amp? Would I need some sort of crossover system? Not looking for super volume; just deep deep bass to be added.