Frequency Response / Acoustic Data: – 16-200 Hz +/- 3 dB (standard mode) – 13-200 Hz +/- 3 dB (extended mode) – 18-200 Hz +/- 3 dB (sealed mode) – Roll-off slope specifically optimized to take maximum advantage of available room gain. – 2-meter ground plane away from reflective structures (quasi-anechoic). Subwoofer Specs: – Premium Black Ash and Piano Gloss Black finish options – Protective non-resonant steel mesh grille – Front-firing 13.5″ driver – Rear-mounted amplifier – Screw-in rubber feet – Robust Medium Density Fiberboard (MDF) cabinet construction Cabinet Dimensions (without grille): 23.4” (595mm) H X 20.5” (520mm) W X 27.7” (704mm) D – Cabinet Dimensions (with grille): 23.4” (595mm) H X 20.5” (520mm) W X 30” (763mm) D – Shipped Dimensions: 29.1” (738mm) H X 26” (661mm) W X 36” (915mm) D – Weight (unboxed): 153.2 lbs. (69.5 kg) – Shipped Weight: 172.4lbs (78.2kg) Driver Specs – High-performance SVS 4000 Series Subwoofer Driver – optimized for ported cabinet design. – Proprietary 13.5” Driver with finely tuned Underhung Motor Configuration – 49.6lb (22.5kg) pound Woofer with 44.3lb (20.1kg) pounds for the motor – Underhung 53mm Xmax, 91.6mm Xmech precision aligned excursion – 8-layer aluminum flat wire edge wound 3” voice coil for ultra-low distortion, efficient heat dissipation, exceptional linearity, and nearly zero power compression. – Two massive, dedicated toroidal ferrite magnets generate unparalleled levels of magnetic force to drive the highest levels of excursion, SPL, and start/go power for the deepest and most authoritative bass possible. – All-new High-density FEA-optimized cast aluminum basket provides unequaled levels of rigidity, tensile strength, and energy transference available from a subwoofer. – Dual 24-strand copper and Nomex composite high-temperature leads woven through the suspension provide a pristine electrical connection from the amplifier to the voice coil. – Premium glass fiber laminated dust cap and reinforced and vented paper-composite cone sub-structure ensure a light, ridged, and neutral radiating surface. – Precision machined motor elements and narrow tolerance suspension parts produce unmatched linearity at full excursion for exceptionally tight and fast output, even at reference volumes. – Extreme oversized low carbon vented steel U-yoke and top plate provide superior cooling and improved magnetics for maximum performance and efficiency. – Copper ring shorting sleeve reduces gap induction and distortion, enhances thermal conductivity – Nickle-plated high-tension spring terminals – Proprietary injection molded gasket and parabolic SBR extreme-excursion surround maintains ideal -pistonic motion for pinpoint accuracy and control – Low carbon 1008 steel components with black electrophoresis plating Amplifier Specs – Massively powerful Sledge 1,200-watt continuous Class D design with 4,000+ watts of Peak Power. – Unmatched intelligence from user adjustable low pass, phase, polarity and room gain compensation with three parametric EQs and port tuning (Ported models only) for absolute best alignment with speakers and optimized performance in any room. – Groundbreaking SVS Bluetooth DSP control app for iOS and -Android devices with three user presets allow custom tuning for every room and system. – High-efficiency cool-running Class D switching topology with massive 32 Amp 600 Volt MOSFET’s result in lower EMI and highest efficiency while providing effortless power to produce SPLs and low frequency output with pristine clarity well beyond reference listening levels. – High-resolution 50Mhz Analog Devices Audio DSP with double precision 56bit filtering is most advanced subwoofer processor available for perfect audio reproduction. 100v-240v full range input active Power Factor Correction (PFC) pre-regulates mains to solid 360V DC regardless of mains voltage or quality so the sound quality never falters no matter what’s coming out of the wall – Active PFC lowers average current and smooths mains input current allowing for 1200W output from a standard 15A mains circuit. – XLR and RCA stereo input/output with ultra-wide input voltage for consumer and professional audio applications. – Convenient front-mounted display featuring new Intelligent -Feature Control (IFC) with bright blue dimmable/defeatable 8-digit LED front display. – Custom EQ and DSP limiter settings tuned specifically for the PB-4000 ported cabinet design. – Auto/On and 3-30V AC/DC trigger for Maximum Installation Convenience. – Input impedance 22kohm (unbalanced RCA)/ 22kohm (balanced XLR). – Green 0.5-watt low standby power consumption – RoHS compliant, lead-free construction, world-wide safety certifications