SVS SB4000 subwoofer

The SVS SB-4000 powered subwoofer breaks down preconceptions about subwoofer performance and technology by dominating any room with deep, effortless bass and adding visceral energy to any listening experience. With the trickle-down technology of the 16-Ultra top range, the SVS SB-4000 lives up to expectations and delivers a level of unparalleled subwoofer performance only possible from SVS.
Thanks to the built-in Sledge STA-1200D amplifier, the SVS SB-4000 woofer is able to produce room-filling SPLs and effortless bass reproduction with great precision and control, with pinpoint accuracy at all sound levels.
A dual ferrite magnet motor that weighs nearly 40 lbs generates immense magnetic force and excursion from the 13.5-inch driver to produce a massive low-frequency output that far below the limits of human hearing.
Edge vortex coil with eight-ply aluminum flat wire minimizes distortion and power compression while providing excellent heat dissipation and linearity for precise control.
The lightweight and stiff composite cone with premium fiberglass dust cap generates massive output with an extremely accurate frequency response.
 A patented nozzle packing and parabolic long throw provide long life and provide extreme deflection and SPL
SVS SB-400 Sledge STA-1200D amplifier
Delivering a conservative 1,200 watts RMS and 4,000 watts peak power, the SVS SB-4000 Sledge STA-1200D amplifier utilizes an efficient Class D design combined with fully discrete MOSFET output and an advanced Analog Devices DSP engine. The result is a level of effortless power and advanced processing not available from most other subwoofer manufacturers.
High current output from fully discrete MOSFETs with Class D amplifier efficiency
Efficiency of a Class D amplifier with the ability to move massive amounts of current through the fully discrete MOSFETs, providing immense output and precise control for
Excellent subwoofer performance is possible in practice at all sound levels.
Advanced 50MHz high resolution analog audio DSP
SVS SB-4000 built-in DSP
The most advanced digital processor ever used in a subwoofer maintains absolute accuracy and pristine sound quality through advanced in-room tuning, optimized frequency response curves, powerful DSP controls and more.
SVS SB-4000 Active Power Factor Correction (PFC) and ground loop isolation
Serves as a line conditioner, surge suppressor and voltage regulator when the amplifier experiences large voltage fluctuations. This ensures that the subwoofer will operate flawlessly on any household circuit, no matter how unstable the incoming power is.