SVS PB-1000 Pro 12" Subwoofer12 inch SVS High Excursion Driver Room shaking bass with subtlety and refinement. Substantially upgraded from the previous 10 inch 1000 Series driver design, the PB 1000 Pro features a reimagined 12 inch high excursion driver with dual ferrite motor assembly. Capable of moving massive amounts of air with crisp precision, the added surface area provides a major performance upgrade over the previous model and features multiple enhancements. Fiber