SVS PB-4000 - Ported Box Home Subwoofer


Thunderous low-frequency output and extremely deep bass extension, with accuracy and control, the PB-4000 is a benchmark-setting subwoofer on every level with unheard-of performance and features for even double the price. The sophisticated DSP amplifier creates three port tuning modes, each with individual response curves to achieve the most accurate in-room frequency response possible. With the PB-4000, it’s like having three subwoofers in one. Effortlessly powerful with bass that extends far below the threshold of human hearing, the PB-4000 creates a revelatory experience with every movie and music listening session.

Type: Subwoofer

  • Jaw-Dropping Bass Extension and Output with Pinpoint Control and Accuracy

    The SVS PB-4000 combines seismic power and fathomless low-frequency extension you can feel with refinement and musicality that suspends your sense of disbelief. 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 PB-4000 crushes expectations and delivers a level of unrivalled subwoofer performance only available from SVS.

    High-Excursion SVS Driver – Legendary SVS Output and Control

    The PB-4000 subwoofer driver delivers on the full potential of the Sledge STA-1200D amplifier’s immense power with precision and control to produce room energising SPLs and effortless low-frequency extension with pinpoint accuracy at all drive levels

    Dual ferrite magnet motor assembly weighing nearly 40lbs generates immense magnetic force and excursion of the 13.5-inch driver to produce massive low-frequency output well below the limits of human hearing.

    Edge wound voice coil with eight-layer aluminium flat wire minimizes distortion and power compression while providing excellent heat dissipation and linearity ensuring precise control.

    Lightweight and rigid composite cone with premium glass fibre dust cap generates massive output with pinpoint accurate frequency response.

    Proprietary injection moulded gasket and long-throw parabolic surround ensure longevity and allow extreme excursion and SPLs.

    Sledge Amplifier – Massive Output, Sophisticated DSP, Advanced Power Management

    Rated conservatively at 1,200 watts RMS, and 4,000+ watts peak power, the PB-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.

    High Current Output of Fully Discrete MOSFETs with Efficiency of Class D Amplifier

    The efficiency of a Class D amplifier with the ability to move massive amounts of current through the fully discrete MOSFETs enabling immense output and precise control for outstanding real-world subwoofer performance at all drive levels.

    Sophisticated 50Mhz High-Resolution Analog Devices Audio DSP

    Most advanced digital processor ever used in a subwoofer maintains pinpoint accuracy and pristine sound quality through advanced in-room tuning, optimized frequency response curves, powerful DSP controls and more.

    Variable Port Tuning Modes

    Foam port plugs come standard with the PB-4000 and allow for variable tuning. Each response curve for the three port tuning modes; standard, extended and sealed, is fully configured to the respective mode to achieve balanced and accurate low-frequency response with all tuning preferences.

    Active Power Factor Correction (PFC) & Ground Loop Isolation

    Serves as a line conditioner, surge suppressor and voltage regulator letting the amplifier deal with wide voltage fluctuations and ensuring the subwoofers operate flawlessly on any household circuit no matter how unstable the incoming current. An isolated circuit creates a vanishingly low noise floor by eliminating the potential for ground loop hums from outside components resulting in absolute sonic transparency.

    PB-4000 Smartphone App – Easiest Way Ever 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 PB-4000 subwoofer by controlling all DSP functions including volume, parametric EQ, low pass filter, phase, polarity, room gain, port tuning, custom presets and system settings.

    Connects via Bluetooth for convenient control even when the subwoofer is out of sight.

    3-band parametric EQ controller allows precise adjustments for frequency slope and Q factor down to the single Hz level with four different slopes, so users can improve performance by eliminating peaks, nulls and other room issues.

    Stores 3 custom presets for movies, music and other listening experiences such as sports or gaming.

    2-way feedback shows updates in real time on both the app and subwoofer interface

    Acoustically Inert and Rigidly Braced Ported Box Cabinet Design

    Inlaid front panel display, three front-firing, high-flow bass ports, rounded edges and a curved metal grille on the PB-4000 cabinet give it a refined yet commanding look that blends visually with home theatres and high-end audio systems.

    Double thick 2-inch MDF front baffle and rigid internal bracing to support the massive drive unit and to ensure an acoustically inert environment.

    Highly reinforced internal design and acoustic insulation eliminates all colouration or resonance from the cabinet, even when the deepest low frequencies are played at reference volume.

    Protective, non-resonant steel mesh grille and custom elastomer feet for reducing noise artefacts within a room.

    2-way feedback shows updates in real time on both the app and subwoofer interface