SVS Sound SB17-Ultra R | Evolution
Born from three decades of SVS design expertise, SB17-Ultra R|Evolution is the pinnacle of subwoofer performance. A massive 17-inch driver with first ever dual 8-in voice coils 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, musicality, and stop-on-a-dime control. The deep, chest-thumping slam of cinematic soundtracks and the delicate nuance of musical bass always rendered truthfully.
SVS Sound SB17-Ultra R | Evolution Active Subwoofers
- 17" Fiberglass Composite Cone Woofer
- Sealed Cabinet Design
- Class-D Mono-Block STA-2800 Amplifier
- Amp Features 8 x 60A/200V MOSFET Stages
- Dual 8" Voice Coils
- 55 lb 4-Piece Toroidal Ferrite Motor
- 295 MHz Analog Devices DSP
- Switch Mode Power Supply
- Auto Room Correction
- Manage via SVS Mobile Control App
- 15Hz to 320Hz +/-3dB
- Roll-off slope specifically optimized to take maximum advantage of available room gain.
- 2-meter ground plane away from reflective structures (quasi-anechoic).
- Piano Gloss Black and Black Oak Real Wood Veneer finishes
- Front Firing 17-inch high-excursion SVS driver
- Protective non-resonant extra-thick ABS grille frame with fabric mesh cover to shield driver
- Robust Medium Density Fiberboard (MDF) cabinet construction with internal bracing for resonance free performance at highest drive levels
- Screw-in Iso-elastomer feet reduce noise artifacts and improve stability
- Amplifier Rear Panel OLED and control interface provide fast and direct control of the most important features. Includes “Display Flip” function for viewing upside down from behind
- Dimensions (with grille): 20.0” (507mm) H x 19.5” (495mm) W x 21.2” (537mm) D
- Dimensions (without grille): 20.0” (507mm) H x 19.5” (495mm) W x 20.3” (516mm) D
- Shipped Dimensions: 24.8” (630mm) H X 24.9” (633mm) W X 29.8” (757mm) D
- Weight (unboxed): 124.0lbs (56.25kg)
- Shipped Weight: 136.0lbs (61.7kg)
- Proprietary SVS 17-inch long-throw driver with high-precision tuned overhung motor configuration
- 63.76lb (28.92kg) pound Woofer with 54.17lb (24.57kg) pounds motor
- 48.9mm Xmax, 81.78mm Xmech precision aligned excursion
- 8” diameter Voice Coil with high current 4-layer bifilar copper-clad aluminum wire windings
- Dual Voice coil design captures power delivery from dual-mono amplifier outputs into a single voice coil for maximum acoustic output
- High Temperature glass-fiber composite former/bobbing
- Four-piece high-grade oversized Y35 Ferrite magnet motor produces effortless on-demand driving-force for subtle and over-the-top low frequency sonics
- Dual shorting rings reduce gap inductance and lower distortion
- Dual 25-strand copper-alloy and Nomex composite high-temperature leads woven through the spider provide a pristine electrical connection from the amplifiers to the voice coils
- Precision machined and narrow tolerance low carbon 1010 steel top-plate and oversized T-yoke with integrated pole-piece extension for optimal magnetics and thermal capacity
- Dual Nomex extreme excursion linear suspension spiders
- Custom injection-molded extreme-excursion catenary SBR rubber surround ensures flawless pistonic motion for pinpoint control and accuracy without distortion at reference drive levels
- Premium glass-fiber laminated dustcap and vented composite cone sub-structure with exceptional stiffness-to-mass ratio ensures a light, ridged, and neutral radiating surface about to move massive amounts of air with crisp precision
- High-density 17” Powder-coated cast aluminum basket FEA optimized for maximum rigidity, tensile strength, and energy transference
- Nickel-plated high-tension spring terminals provide secure connections
- Sledge STA-2800D with 2800 watts RMS continuous power (6000+ watts peak dynamic power)
- Dual-mono discrete Class D amplifiers generate endless power from eight massive 60A 200V MOSFETs, resulting in lower EMI and highest efficiency
- High resolution 295Mhz Analog Devices Audio DSP with double precision 56bit filtering. Over 5x the processing power of previous subwoofers, the most advanced subwoofer processor available for flawless low frequency audio reproduction
- Monitors every function of the amplifier ensuring precisely regulated clean voltage is delivered to and from the switch mode power supply and maximum current is pushed to the driver’s voice coils
- DSP Continuously runs complex power management algorithms and multi-point thermal, voltage, and current monitoring systems to optimize AC voltage delivery to the power supply for continuous peak performance with maximum performance and greatest efficiency
- Advanced digital audio processing and DACs (Digital-to-Analog Converters) with 120 dB Signal-to-Noise Ratio provide greater headroom, lower noise, and flawless fidelity
- All new Switch Mode Power Supply (SMPS) includes a two-stage 100v-240v full range active Power Factor Correction (PFC) to pre-regulate mains to solid 390V DC regardless of mains voltage or quality. Ensures a consistent 160V rail voltage for dual-mono amplifiers over a wide-range of AC voltages
- Onboard AC line conditioner filters and stabilizes incoming voltage, corrects waveform distortions, and eliminates electromagnetic and radio interferences to optimize signal quality
- Pioneering convective cooling plate design pulls cool outside air through vents at the bottom of the amplifier plate, flowing over the amplifier components and internal heat sinks, eliminating the need for an external heatsinks
- Compatible with Apple iOS, Google Android, and Amazon Fire platforms, the industry leading SVS Subwoofer Control Smartphone app allows convenient and intuitive management of all subwoofer controls.
- The Analog Devices DSP supports a comprehensive menu of functions, including volume, fully adjustable low pass filter, phase, polarity, six PEQs, room gain compensation, tuning modes, power management settings, and more.
- Includes three convenient memory presets for fast and easy global system adjustments to match listener preferences.
- Subwoofer Auto Room Equalization (available via over-the-air app update soon)
- Uses your mobile device’s built-in microphone to measure the acoustic performance of your subwoofer in your room
- Protective non-resonant extra-thick ABS grille frame with fabric mesh cover
- Iso-elastomer feet
- Extra heavy-duty, high current 6’ power cord
- Quick Start Guide
17-Ultra Series Technology
A Quantum Leap Forward in Subwoofer Design and Performance.
Effortless Output from High-Excursion 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 fiber 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
Unerring Control from Revolutionary Dual 8-inch Voice Coils
Unprecedented dual 8-inch voice coils ensure stable transfer of electro-magnetic current to the 17-inch driver for authoritative output and pinpoint driver control.
- 4-layer bi-filar dual voice coils conduct the massive power from the dual-mono amplifier to the motor with maximum thermal efficiency, resulting in effortless acoustic output
- Copper clad aluminum voice coil wire combines the best properties of both elements, yielding ideal thermal capacity and magnetic field strength
First Ever Dual Mono STA-2800D Amplifier Design with Discrete MOSFET Output
The sonic muscle behind the most powerful and highest fidelity SVS subwoofer amplifier ever developed. SB17-Ultra R|Evolution STA-2800D features technological innovations never offered before in a consumer subwoofer amplifier with breakthroughs to ensure refined behavior and pristine response at any volume.
- Limitless headroom from dual mono-block Class-D amplifiers with MOSFET output stages
- Each amp drives one of the dual 8-inch voice coils within the motor to assert pinpoint control and maximize power fed to the driver
- Eight 60 Amp 200 Volt MOSFETs deliver extreme high current for reference-level output with maximum efficiency
Extreme Subwoofer Intelligence – 295 MHz Analog Devices DSP
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 stabilize AC voltage delivery to the power supply to maintain consistent peak output
- Multi-point thermal, voltage, and current monitoring systems ensures maximum output and efficiency
- Advanced digital audio processing and DACs (Digital-to-Analog Converters) with 120 dB Signal-to-Noise Ratio provide greater headroom, lower noise, and pristine fidelity
SVS Subwoofer Smartphone Control App Now with Auto EQ Room Correction
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 equalizers, room gain compensation, tuning modes, power management settings, and more
- Includes three convenient memory presets for fast and easy system adjustments to match your listening preferences – music, movies, night mode, and more
- Amplifier Rear Panel OLED and control interface provide fast and direct control of the most important features and includes a convenient “Display Flip” function
SVS Subwoofer Auto EQ Room Correction
Achieves pristine fidelity by resolving all the acoustic issues caused by your room in a few easy steps.
- Automatically tunes subwoofer output using your smartphone microphone or an external microphone and the SVS subwoofer app
- Applies equalization, capitalizes on available room gain, and hones in-room frequency response at main listening positions for optimal in-room performance
- Will be available soon via an over-the-air SVS Subwoofer Control App update
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