With 325 watts RMS and 820+ watts peak power, the Sledge STA-325D amplifier combines the massive high current power of discrete MOSFETs with Class D efficiency. The unique design features vanishingly low distortion and allows for virtually unlimited performance on demand while maintaining driver control. The 30.5 cm (12") large SVS subwoofer driver features a dual ferrite magnet motor with a wide parabolic diaphragm for extreme deflection and delivers massive performance with finesse and precision even at the highest levels. Analog devices with 50MHz audio DSP deliver precise frequency response through advanced in-room tuning and powerful controls, while the subwoofer takes control of a room with room-filling bass. The groundbreaking SVS subwoofer DSP smartphone app is the easiest way to control volume, manage custom presets, and fine-tune performance in your system. The acoustically inert and rigidly braced, sealed subwoofer enclosure features an extra thick MDF front panel and rigid interior bracing to create a resonance-free environment for uncompromising performance. Compact enough to fit in almost any room or system.