Reference Subwoofer Performance Hits an All-Time Low. The breathtaking output and musicality of a world-class subwoofer from a 13-inch enclosure with state-of-the-art features. Shatters expectations with reference performance thats never before been available at this price. Featuring an all-new 12-inch high-excursion driver and reference amplifier technology used in flagship SVS subwoofers SB-1000 Pro is a well-balanced powerhouse with a legendary performance pedigree. 325 watts RMS 820+ watts peak power Sledge amplifier with fully discrete MOSFET output and sophisticated 50 MHz DSP load a room with chest-thumping and accurate bass you can feel that belies its compact cabinet. Also features the SVS subwoofer DSP smartphone app for advanced tuning and control. Unleash accurate bass down to 20Hz in audiophile stereo and home theater surround sound systems. SB-1000 Pro demolishes all performance benchmarks in its price range and features innovative technology for an unrivaled user experience. Simply put its in a class of its own. 12-inch SVS High-Excursion Driver - Room-shaking bass with subtlety and refinement Maximizing every available square inch of surface area SVS packed a high-excursion 12-inch driver and dual ferrite motor assembly into an acoustically inert 13-inch cabinet. Thermal management is critical when dealing with such a powerful amplifier and motor in a relatively compact sealed cabinet. SVS engineered a vented pole piece and efficient high-power voice coil to keep the SB-1000 Pro subwoofer cool without impacting performance. Multiple innovations enhance performance within a sealed cabinet enclosure all aimed at generating subterranean deep bass extension and seismic output while remaining accurate and controlled. Fiber composite cone with exceptional stiffness-to-mass ratio moves massive amounts of air while starting and stopping on a dime with crisp precision Proprietary injection-molded extreme-excursion surround ensures fl