A top choice for home theater and audiophile music systems, the SB-4000 subwoofer delivers massive SPLs and extreme low frequency extension that will astonish even the most discerning listeners. A high-excursion 13.5-inch driver unleashes immense sonic energy while maintaining pinpoint control and accuracy from a 1,200 watts RMS, 4,000+ watts peak power amplifier featuring fully discrete MOSFET output and Analog Devices most advanced audio DSP. Precise tuning for the SB-4000 is enabled from a subwoofer DSP smartphone app with custom presets.

• Unparalleled low-frequency depth, power and detail:  The SVS SB-4000 powered subwoofer demolishes all preconceived notions about subwoofer performance and technology by taking command of any room with deep, effortless bass and adding visceral energy to every listening experience. With trickle down technology from the 16-Ultra Series, named top subwoofers in the world by nearly every audio publication and industry group in 2017, the SB-4000 obliterates expectations and delivers a level of unrivaled subwoofer performance only available from SVS.
• High-Excursion SVS Driver:  Known for the legendary SVS Output and Control, the SB-4000 subwoofer delivers on the full potential of the Sledge STA-1200D amplifier’s power with precision and control to produce room energizing SPLs and effortless low-frequency extension with pinpoint accuracy at all drive levels.
• Sledge amplifier for massive output:  Rated conservatively at 1,200 watts RMS, and 4,000+ watts peak power, the SB-4000 Sledge STA-1200D amplifier uses an efficient Class D design combined with fully discrete MOSFET output and a sophisticated Analog Devices DSP engine. The result is a level of effortless power and advanced processing not available from any other powered subwoofer manufacturer.
• SB-4000 Smartphone App:  This is the easiest way to manage subwoofer DSP and control.  Groundbreaking smartphone app works with Apple iOS® and Android® devices to unleash the full depth, force and nuance of the SB-4000 powered subwoofer by controlling all DSP functions including: volume, parametric EQ, low pass filter, phase, polarity, room gain, port tuning, custom presets and system settings.

Product Highlights

• Frequency response: 19-310 Hz (±3 dB)
• Built-in Class D amplifier delivers 1200 watts RMS of continuous power (4000 watts peak dynamic power)
• Front-firing 13-1/2" composite paper/fiberglass cone with a die-cast aluminum basket for extreme performance and reliability
• Acoustic suspension (sealed) cabinet design
• Front-mounted Intelligent Feature Control (IFC) panel with blue dimmable/defeatable 8-digit LED display
• In-depth control via Bluetooth® for Apple® and Android™ devices
• App-based control of crossover frequencies, parametric EQ, polarity, and other bass management functions
• Bi-directional feedback shows adjustments in real-time in both the app and the subwoofer's display
• Selectable room gain compensation control with adjustable frequency and slope to better match bass to room size
• Three digital Parametric EQ filters with adjustable frequency, cut/boost, and Q values
• Variable low-pass crossover, variable phase control (0-180°)
• Line-level/LFE RCA and balanced (XLR) inputs, RCA and XLR outputs
• Main power on/off switch plus auto standby/on mode
• Infrared (IR) remote control included
• Detachable high-current 6-foot power cord
• Non-resonant steel mesh grille
• Piano gloss black finish

Dimensions and Warranty

• 17-13/16""W x 18-5/16""H x 20-15/16""D
• Weight: 102.3 lbs.
• Warranty: 5 years
• Our 30-day money-back guarantee
• MFR # SB-4000-PBG