SVS SB12-NSD - 12", 400-watt DSP Controlled, Sealed Box Subwoofer (Black Ash) 14" cube and only 35 pounds - easy to move and locate anywhere. Stylish curved metal grille. Perfect for college dorms, apartments and small home theaters, the SB12-NSD will satisfy your craving for that famous SVS sound in an attractive, lightweight and compact form factor. Small never had it so good - naturally from SVS. Barely cracking 14" on all sides and weighing a mere 35 pounds, this smallest SVS is easily portable and will fit almost anywhere in your listening room. But you won't want to hide a subwoofer this attractive; the SB12-NSD has the classy looks to match its remarkable performance. Our Sledge STA-400D amplifier sports technology and features simply not found anywhere else at this price point. Starting with a conservatively rated 400 watts of power - a perfect match for the rugged NSD-12 driver. 400 watts RMS continuous power (800 watts peak dynamic power). Efficient, cool-running Class D power with 'green' standby mode. Stereo line-level RCA input/output connections. You won't find old-fashioned analog pots on this amp - every control knob is actually a digital actuator for precise and noise-free adjustment. And comprehensive and flexible connectivity options allow for easy set-up and integration into any home theater or stereo system. Separate high-passed and unfiltered line level outputs. Continuously variable low pass filter. DSP control for optimized performance and refined behavior