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SVS SB-4000 - 13.5" 1200W Premium Subwoofer The SVS SB-4000 subwoofer delivers powerful, precise bass with deep low-frequency extension, perfect for home theatre and audiophile music systems. Featuring a high-excursion 13.5-inch driver and a 1,200 watts RMS amplifier with advanced DSP, it offers unmatched performance and control. Key Features 13.5-inch high-excursion driver with dual ferrite magnet motor assembly 1,200 watts RMS, 4,000+ watts peak power Sledge STA-1200D amplifier Fully discrete MOSFET output with Class D amplifier efficiency Advanced 50MHz Analog Devices high-resolution audio DSP for precise tuning Sealed box cabinet with rigid internal bracing and acoustic insulation Smartphone app control via Bluetooth for volume, EQ, phase, presets and more Edge-wound voice coil with eight-layer aluminium flat wire for minimal distortion Protective steel mesh grille and custom elastomer feet to reduce noise artefacts Active Power Factor Correction (PFC) and ground loop isolation for clean power Product Overview The SB-4000 sets a new benchmark for subwoofer performance with chest-thumping slam and ultra-low frequency extension below the threshold of human hearing. Its sealed cabinet design and sophisticated DSP amplifier master room gain, delivering deeper bass and higher output levels than typical subwoofers of this size. This subwoofer is ideal for reference-quality bass in audiophile music and home theatre systems, outperforming larger and more expensive models. Specifications Driver Size: 13.5 inches Amplifier Power: 1,200 watts RMS, 4,000+ watts peak Amplifier Type: Class D with fully discrete MOSFET output DSP: 50MHz Analog Devices high-resolution audio processor Cabinet: Sealed box with 2-inch MDF front baffle and internal bracing Connectivity: Bluetooth control via smartphone app (iOS and Android) What's in the Box Includes the SVS SB-4000 subwoofer, power cable, and user manual. Technical Specifications