SB17-Ultra R|Evolution

5.0
Rated 5.0 out of 5 stars
45 Reviews

SB17-Ultra R|Evolution

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A quantum leap forward in design and performance with multiple groundbreaking innovations - the most formidable and sophisticated sealed subwoofer ever developed.

All-new 17-inch driver with first-ever dual 8-inch voice coils. The most powerful amplifier ever deployed in a consumer subwoofer with unprecedented dual mono-block design married to the extreme intelligence of a 295MHz DSP. All managed by the most sophisticated subwoofer control app, now with auto EQ room correction (available soon via over-the-air update).

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  • 45 Day Risk-Free In-Home Trial
  • Fast & Free Shipping and Returns
  • 5-Year Unconditional Warranty

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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
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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
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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

Performance Enhancing Switch Mode Power Supply

Regardless of the power coming out of your household circuit, the SB17-Ultra R|Evolution always maintains peak performance and remains impervious to voltage fluctuations.

  • Onboard AC line conditioner filters and stabilizes incoming voltage, corrects waveform distortions, and eliminates electromagnetic and radio interferences to optimize 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 the AC voltage to the AC current resulting in less heat, greater efficiency, reliable peak power output, and the ability to maintain rated power over a wide-range of voltages
  • FEA optimized convection cooling system has no exterior heatsinks, an extraordinary feat for such a powerful amplifier
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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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Google App ITunes App Amazon App

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Frequency Response / Acoustic Data:

SB17-Ultra Frequency Response Chart* Frequency response graph does not denote maximum output capability
  • 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).

Subwoofer Specs:

  • 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)

Driver Specs:

  • 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

Amplifier Specs:

  • 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
  • User auto EQ and DSP limiter settings specifically for the 17-Ultra allow the subwoofer to take control of a room and pressurize it with accurate, heart-pounding, acoustically tuned bass
  • XLR and RCA stereo input/output with ultra-wide input voltage bandwidth compliant with consumer and professional audio applications up to 4V line level input
  • Unbalanced RCA 10kohm input impedance (compatible with consumer and professional audio up to 4Vrms inputs)
  • Balanced XLR 14kohm input impedance (compatible with consumer and professional audio up to 14Vrms / +24dBu inputs) OLED and control interface with easy control of the most important features
  • USB provides power for the SVS SoundPath Wireless Audio Adapter (sold separately) which eliminates the need for a cable run to the subwoofer from the source component.
  • Auto/On and Trigger options through App for maximum installation convenience (3.5mm trigger Input 3-12V AC/DC)
  • 3.5mm IR input for easy integration with control systems
  • Green 0.5-watt low standby power consumption
  • RoHS compliant, lead-free construction, world-wide safety certifications.

SVS App Features:

  • 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
  • Automatically calculates equalization filters to optimize the subwoofer and room combined performance at your listening position
  • Subwoofer Auto Room Equalization (available via over-the-air app update soon)
  • Easy-to-follow tutorial provides clear guidance for all functions

Included Accessories

  • 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
5.0
Rated 5.0 out of 5 stars
Based on 45 reviews
Total 5 star reviews: 44 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend these products
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Reviews Summary
Customers say these subwoofers deliver powerful, precise bass that transforms their listening experience. Many reviews mention the clean, tight sound quality for both music and movies. Users appreciate how the subwoofers handle deep frequencies with remarkable clarity and control. The compact design receives praise, despite the units' substantial weight. While most enjoy the companion app's features, some note they're awaiting promised room correction updates. Common feedback highlights the impressive performance in both small rooms and large open spaces, with many choosing to add a second unit for enhanced coverage.
45 reviews
  • JA
    Joseph A.
    Flag of United States
    Verified Buyer
    2 months ago
    Reviewing
    SB17-Ultra R|Evolution
    Rated 5 out of 5 stars
    Clean tight bass at any volume

    I bought two SB17 Ultras and they are amazing! Even right out of the box with the factory settings they play extremely well. I'm impressed with the new DSP. These subs do a fantastic job preventing you from pushing them beyond their limits. And believe me those limits are extremely high. I played some music tracks geared towards bass testing and it shook the entire house. Also played actual music across different genres and the listening experience was quite enjoyable. I backed the volume down to -10db to not drown out the vocals and other frequencies from my main speakers. Depending on how bass heavy the tracks are I'd say anywhere from -8 to -12 db is probably the sweet spot. For movies (still with a flat eq) it was a night and day change. I have the Polk R700s which have some decent bass for front tower speakers but there's a whole low end of the spectrum I was still missing. Blade Runner 2049 was extremely bass heavy right from the start. Had to dial it down to -15db to keep my house shaking. After that I decided to get the Dirac Bass Control license and recalibrate. I was already using Dirac so it made sense for me. Post calibration it really dialed the subs in nicely and turned the flutter of bass into a more tightly controlled purposeful punch at the right moments. Oh I should probably mention I have an open concept floor plan with 10ft ceilings so while the R5000 was enticing I spoke with the SVS customer service and they recommended I go with the SB17 Ultras to…

  • JH
    Jeff H.
    Flag of United States
    Verified Buyer
    2 months ago
    Reviewing
    SB17-Ultra R|Evolution
    Rated 5 out of 5 stars
    SB17 Ultra

    Hello Gary

    I have two SB16 Ultras and wanted to add more to my space. After adding the third SVS sub and especially the SB17 I am very pleased with the outcome. It provides another level of bass and really rounds out my sound space. I’m on the fence for a second SB17 but am very very happy with the result and the quality

  • DD
    Donald D.
    Flag of United States
    Verified Buyer
    2 months ago
    Reviewing
    Dual SB17-Ultra R|Evolution
    Rated 5 out of 5 stars
    4-SB-17’s

    Recently upgraded from PB -4000’s to sealed subs. Love the size and ease of use. Great sound as expected, love them. I do wish the room correction software was ready since that was a selling point, hopefully soon? Great customer service, another selling point.

  • GU
    Greg U.
    Flag of United States
    Verified Buyer
    3 months ago
    Reviewing
    Dual SB17-Ultra R|Evolution
    Rated 5 out of 5 stars
    Very pleased with SVS !

    I had a very good experience with SVS. I first purchased two SB-1000 pro placed then side by side up front flanking my EMOTIVA Xt2 towers and wow! Very good speakers and very good phone app. Not even pairing to the app was required. Punchy and go low to their proportionate size and power. I was so impressed that I wanted to upgrade to two SB17 ULTRAs. Nancy at SVS handled the upgrade with free returns of the SB1000s very efficiently. Now as a bass-head I can truly say WOW x2.!! Again the app works effortlessly and these SB17 rock! They are quick and go low.! They bring out so much detail in the lower register but also make my mains work more efficiently and have now MORE detail ! They are very heavy. 124 lbs. Glad I also purchased their ISOLATION FEET to get my hands underneath to adjust. I highly recommend using SVS ! Just do it. You won’t be disappointed. I cannot say anything negative about SVS. Thank you SVS. ( do you sell T-shirts,btw) Happy listening to all !

  • DC
    Dalton C.
    Flag of United States
    Verified Buyer
    3 months ago
    Reviewing
    Dual SB17-Ultra R|Evolution
    Rated 5 out of 5 stars
    Wow

    I've bought subwoofers from SVS as far back as 2001. Customer service is second to none. I've always been satisfied with every sub I have bought. I've also tried other brands over the years and some of them were pretty good. I recently purchased a pair of SB 17 Ultra subwoofers. And to say they are impressive is an understatement. The impact and clarity of the subwoofers is the best I've experienced in my home in my 30 years of home theater audio listening. These subwoofers make their presence known whether at low volume or high volume. They dig deep when they need to and provide excellent bass slam for home theater and music. I am extremely happy with my purchase and would give them my highest recommendation!

17-Ultra R|Evolution Series Technology

A Quantum Leap Forward in Subwoofer Design and Performance.

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High-Excursion 17-Ultra R|Evolution Driver
17-inch glass fiber composite cone with 55 lb toroidal ferrite magnet motor assembly render massive low frequency output down to 15Hz with pinpoint accuracy and control.
8-inch Dual Voice Coils
Dual voice coil design ensures stable and consistent transfer of motor electro-magnetic energy to the 17-inch cone to maintain precise driver control with maximum efficiency.
Dual Mono Amplifier
Each of the two Class-D mono-block amplifiers with MOSFET output stages drives one of the dual voice coils to double the amount of current being fed to the driver achieving effortless output with lower continuous current demand from a home’s AC circuit.
Switch Mode Power Supply
Time aligns the AC voltage to the AC current while filtering and stabilizing incoming voltage to optimize signal quality and audio performance.
295 MHz Analog Devices DSP
The most advanced processor ever used in a consumer subwoofer optimizes every aspect of subwoofer output and usability to maintain flawless performance and intuitive control.
SVS Subwoofer Control Smartphone App
Most convenient way to control all DSP functions, including: volume, 6-band parametric equalizer, low pass filter, phase, polarity, room gain, port tuning, system settings, custom presets, and auto room EQ.
Acoustically Tuned Sealed Cabinet Design
Sealed cabinet with double thick MDF and rigid internal bracing creates a resonance-free environment for pitch-perfect accuracy free from resonances and coloration.