Reference Subwoofer Performance Hits an All-Time Low. Room-shaking low-frequency output well below the threshold of audibility where bass can be felt as well as heard with pinpoint control and accuracy that obliterates any subwoofer in its class and beyond. Never has this level of subwoofer performance been available anywhere near the price. All-new 12-inch 1000 Pro Series SVS driver and stunning acoustically tuned dual-port cabinet design married to reference amplifier platform establish PB-1000 Pro as a truly groundbreaking subwoofer that defies expectations in every way while delivering truly world-class performance. Features all-new 12-inch SVS driver 325+ watts RMS 820+ watts peak power Sledge amplifier with fully discreet MOSFET output and SVS subwoofer DSP smartphone app. Optimized with dual-port cabinet design for effortless bass with vanishingly low distortion. PB-1000 Pro stands alone in its excellence with massive output down to a thrilling 17Hz where the bass is only felt with flawless tonal accuracy and precise control. The deepest most effortless and refined bass at a truly breakthrough price PB-1000 Pro defies expectations at every level with performance-driven innovation. 12-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 composite cone with exceptional stiffness-to-mass-ratio generates huge SPLs while starting and stopping on a dime with crisp precision Proprietary injection molded extreme.