SVS PB17-Ultra Subwoofer
Born from three decades of SVS design expertise, PB17-Ultra R|Evolution is the pinnacle of ported subwoofer performance. A massive 17-inch driver with first-ever dual 8-inch voice coils is driven by the most powerful amplifier ever deployed in a consumer subwoofer, with DSP intelligence far beyond anything available. All married to advanced power management and auto EQ room correction. The benchmark for reference subwoofer experiences has arrived. Breathtaking low frequencies with unerring accuracy, room-shaking output, and stop-on-a-dime control. The deep, chest-thumping slam of cinematic soundtracks and the delicate nuance of musical bass are always rendered truthfully. Whether heard or felt, low frequencies are handled effortlessly without sacrificing sonic fidelity and refinement. With extension to 12Hz, far below the threshold of human hearing, PB17-Ultra R|Evolution brings sound to life with convincing, visceral, and jaw-dropping impact. 17-inch SVS driver It was a ground-up process designing the largest, most formidable driver ever deployed in an SVS subwoofer. An all-new dual voice coil, suspension, basket, and extreme-excursion surround achieve chest-compressing sound pressure levels with flawless tonal accuracy. Lightweight and rigid 17-inch glass-fibre composite cone with optimal stiffness-to-mass ratio for maximum efficiency and acoustic linearity 55lb four-piece toroidal ferrite electromagnetic motor generates massive force with precise control, remaining authoritative yet detailed and controlled Extreme-excursion catenary SBR rubber surround maintains pure, long-throw pistonic driver motion Dual 8-inch voice coils Unprecedented dual 8-inch voice coils ensure stable transfer of electromagnetic current to the 17-inch driver for authoritative output and pinpoint driver control. 4-layer bi-filar dual voice coil conducts massive power from the dual-mono amplifier to the motor with maximum thermal efficiency, resulting in effortless acoustic output Copper-clad aluminium voice coil wire combines the best properties of both elements, yielding ideal thermal capacity and magnetic field strength Discrete MOSFET output The sonic muscle behind the most powerful and highest-fidelity SVS subwoofer amplifier ever developed. PB17-Ultra R|Evolution STA-2800D features technological breakthroughs never previously offered in a consumer subwoofer, ensuring refined behaviour and pristine response at any volume. Limitless headroom from dual monoblock Class D amplifiers with MOSFET output stages Each amplifier drives one of the dual voice coils within the motor to assert pinpoint control and maximise power fed to the driver Eight 60 Amp 200 Volt MOSFETs deliver extreme high current for reference-level output with maximum efficiency Switch mode power supply Regardless of the power coming from your household circuit, the PB17-Ultra R|Evolution always maintains peak performance and remains impervious to voltage fluctuations. Onboard AC line conditioner filters and stabilises incoming voltage, corrects waveform distortions, and eliminates electromagnetic and radio interference to optimise signal quality and audio performance Ensures clean and consistent 160V rail voltage and optimal power delivery from a standard 15-amp home circuit Power factor correction (PFC) time-aligns AC voltage to AC current, resulting in less heat, greater efficiency, reliable peak power output, and consistent performance across a wide voltage range FEA-optimised convection cooling system has no exterior heatsinks, an extraordinary feat for such a powerful amplifier Extreme subwoofer intelligence Orchestrating the cutting-edge amplifier, motor, and driver ecosystem is the most sophisticated DSP ever deployed in a consumer subwoofer. Accurately shapes in-room frequency response with absolute precision for faithful signal reproduction Monitors every function of the amplifier to stabilise AC voltage delivery and maintain consistent peak output Multi-point thermal, voltage, and current monitoring ensures maximum output and efficiency Advanced digital audio processing and DACs (Digital-to-Analog Converters) with 120dB signal-to-noise ratio provide greater headroom, lower noise, and pristine fidelity SVS subwoofer smartphone control Compatible with Apple iOS, Google Android, and Amazon Fire platforms, the SVS Subwoofer Control Smartphone app allows convenient subwoofer tuning and management. Controls for volume, low-pass filter, phase, polarity, six parametric equalisers, room gain compensation, tuning modes, and power management settings Includes three convenient memory presets for fast and easy system adjustments for music, movies, night mode, and more Variable port tuning modes with included port plugs enable Standard, Extended, and Sealed configurations for tailored performance Amplifier rear panel OLED and control interface provide direct control of key features and include a “Display Flip” function Auto room correction Achieves pristine fidelity by resolving acoustic issues caused by your room in a few simple steps. Automatically tunes subwoofer output using your smartphone microphone and the SVS subwoofer app Applies equalisation filters, capitalises on available room gain, and optimises in-room frequency response at main listening positions Simple process requires only a few steps for significant improvements in room response Specifications Frequency Response / Acoustic Data: 14Hz to 220Hz ±3dB (standard mode – all ports open) 12Hz to 220Hz ±3dB (extended mode – 2 ports open) 4Hz to 320Hz ±3dB (sealed mode – all ports sealed) Roll-off slope specifically optimised to take maximum advantage of available room gain. 2-metre ground plane away from reflective structures (quasi-anechoic). Subwoofer Specs: Piano Gloss Black and Black Oak real wood veneer finishes Front-firing 17-inch high-excursion driverTriple high-flow 4-inch portsRear-panel OLED amplifier control interface with fast access to key features and “Display Flip” function Protective non-resonant extra-thick ABS grille frame with fabric mesh coverRobust medium-density fibreboard (MDF) cabinet with internal bracing for resonance-free performance at high output levels Screw-in iso-elastomer feet for reduced noise artefacts and improved stability Dimensions & Weight: Dimensions (with grille): 25.0” (635mm) H x 21.7” (550mm) W x 29.3” (744mm) D Dimensions (without grille): 25.0” (635mm) H x 21.7” (550mm) W x 28.5” (723mm) D Shipped dimensions: 30.2” (767mm) H x 27.5” (698mm) W x 38.4” (976mm) D Weight (unboxed): 164.7lbs (74.7kg) Shipped weight: 186.1lbs (84.4kg) Driver Specs: Proprietary 17-inch long-throw driver with high-precision overhung motor Woofer mass: 63.76lb (28.92kg); motor mass: 54.17lb (24.57kg)48.9mm Xmax, 81.78mm Xmech excursion 8-inch voice coil with 4-layer bifilar copper-clad aluminium wire windings Dual voice coil design for maximum output Glass-fibre composite formerFour-piece Y35 ferrite magnet motor Dual shorting rings for reduced distortionNomex high-temperature leads Low-carbon 1010 steel top plate and T-yoke Dual Nomex extreme-excursion spiders SBR rubber surround for precise pistonic motionVented composite cone structure with glass-fibre laminate dust cap High-density 17-inch powder-coated cast aluminium basket (FEA optimised) Nickel-plated high-tension spring terminals Amplifier Specs: Sledge STA-2800D with 2800W RMS continuous power (6000W+ peak dynamic) 295MHz Analog Devices audio DSP with 56-bit filtering Advanced power management and thermal/voltage/current monitoring120dB signal-to-noise ratio DACs Dual-mono Class D amplification using eight 60A 200V MOSFETs Switch Mode Power Supply with active Power Factor Correction (100–240V) Stable 390V DC pre-regulation and 160V rail voltage Onboard AC line conditioning and waveform correction Convective cooling plate design eliminating need for external heatsinks RCA (10kΩ) and XLR (14kΩ) inputsUSB power for SVS SoundPath Wireless Audio Adapter support3.5mm trigger input (3–12V AC/DC) and IR inputUltra-low 0.5W standby power consumption RoHS compliant and globally certified SVS App Features: Compatible with iOS, Android, and Amazon Fire Full DSP control: volume, low-pass filter, phase, polarity, 6 PEQs, room gain compensation, tuning modes, power management Three memory presets for system adjustments Auto Room Equalisation (over-the-air update support) Microphone-based room measurement and automatic filter calculation Real-time bidirectional feedback between app and subwoofer Built-in tutorials for setup and calibration Included Accessories: Protective non-resonant ABS grille with fabric mesh cover Iso-elastomer feet Three foam port tuning plugs Extra heavy-duty 6ft (1.8m) high-current power cord Quick Start Guide
