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Overview

SVS SB17-Ultra R|Evolution – 17-Inch Sealed Powered Subwoofer in Gloss Black


Seismic impact. Extraordinary control. Reference-level bass without compromise.

The SVS SB17-Ultra R|Evolution brings flagship subwoofer engineering to high-performance music systems and dedicated home theaters. A massive 17-inch driver, dual 8-inch voice coils, and an extraordinary 2,800-watt RMS amplifier deliver deep, authoritative bass with the speed and precision expected from a premium sealed design.

With low-frequency extension reaching 15Hz, the SB17-Ultra R|Evolution reproduces the deepest notes of music and the physical impact of cinematic soundtracks with remarkable authority. Its sealed enclosure combines substantial output with controlled response, making it equally compelling for serious two-channel listening and reference home theater applications.

At the heart of the system is SVS's Sledge STA-2800D amplifier, featuring two independent Class D monoblock amplifier sections. Each drives one of the driver's dual voice coils, providing exceptional power delivery and control.

A 295MHz Analog Devices DSP, advanced power management, and SVS Auto EQ room correction complete a subwoofer designed to deliver extraordinary performance in real-world listening environments.



Key Features

  • 17-inch high-excursion driver: Glass-fiber composite cone and a massive ferrite magnet motor assembly.

  • Dual 8-inch voice coils: Each voice coil is driven by its own dedicated amplifier section.

  • 2,800W RMS / 6,000+W peak: Sledge STA-2800D dual-monoblock amplifier.

  • 15Hz bass extension: Exceptionally deep low-frequency reproduction from a sealed enclosure.

  • 295MHz Analog Devices DSP: Advanced processing with 56-bit filtering.

  • SVS Auto EQ: App-guided room correction using a smartphone microphone or compatible external microphone.

  • Six-band parametric EQ: Extensive control over in-room bass response.

  • Three custom presets: Save settings for music, movies, or other listening preferences.

  • Balanced XLR and RCA connections: Flexible integration with high-end stereo and home theater systems.

  • OLED control interface: Rear-panel display for convenient setup and adjustments.

  • Two premium finishes: Piano Gloss Black and real Black Oak Veneer.

  • Five-year manufacturer warranty.



A 17-Inch Driver Engineered for Extraordinary Output

The SB17-Ultra R|Evolution features a proprietary 17-inch driver built around a glass-fiber composite cone and an enormous ferrite magnet motor assembly.

Its dual 8-inch voice coils represent a particularly important engineering advancement. Rather than relying on a conventional single amplifier output, SVS uses two dedicated amplifier sections, each driving an individual voice coil.

This architecture allows the driver to receive substantial power while maintaining precise control over cone movement.

The result is a subwoofer capable of reproducing the most demanding low-frequency passages, from subtle acoustic bass recordings to the immense dynamic demands of modern cinema.

2,800 Watts of Dual-Monoblock Power

The Sledge STA-2800D amplifier is a central part of what makes the SB17-Ultra R|Evolution different.

Two independent Class D monoblock amplifier sections deliver a combined 2,800 watts RMS and more than 6,000 watts of peak power.

Each amplifier drives one of the driver's dual voice coils, providing exceptional current delivery and control.

The advanced switch-mode power supply incorporates active power-factor correction and onboard AC line conditioning to stabilize power delivery.

This is serious amplification designed to maintain performance when a soundtrack demands enormous low-frequency energy.


Deep Bass With Sealed-Cabinet Precision

The SB17-Ultra R|Evolution achieves a published frequency response of 15–320Hz ±3dB.

Its sealed enclosure is constructed from heavily braced MDF to minimize unwanted cabinet resonance. The design prioritizes accurate bass reproduction while providing the output necessary for reference-level home theater applications.

For music, the SB17-Ultra R|Evolution reveals the weight and texture of bass instruments without sacrificing detail.

For movies, it reproduces deep low-frequency effects with the physical presence that makes a dedicated theater feel truly immersive.

The sealed design also makes it an appealing choice for systems where precise bass integration is just as important as sheer output.

Advanced Room Correction With SVS Auto EQ

Even an extraordinary subwoofer needs to work with the room around it.

The SB17-Ultra R|Evolution incorporates a 295MHz Analog Devices DSP with 56-bit filtering, providing extensive processing power for bass management and optimization.

Through the SVS Subwoofer Control App, you can adjust volume, crossover, phase, polarity, room gain compensation, and six bands of parametric equalization.

SVS Auto EQ uses measurements from a smartphone microphone or compatible external microphone to analyze the listening environment and calculate correction filters.

Three memory presets allow you to store preferred settings for different listening situations.

A rear-panel OLED display provides convenient access to essential controls without requiring the app.



 

Built for High-End Audio Systems

The SB17-Ultra R|Evolution offers both balanced XLR and unbalanced RCA stereo inputs and outputs.

This makes it suitable for integration with premium two-channel preamplifiers, surround processors, and sophisticated home theater installations.

A 12V trigger input and IR connectivity provide additional installation flexibility, while the USB port can power an optional SVS SoundPath Wireless Audio Adapter.

For dedicated theaters and larger listening rooms, multiple SB17-Ultra R|Evolution subwoofers can also be used to improve bass consistency across listening positions.



Technical Specifications

Specification

Details

Subwoofer Type

Sealed, powered

Driver

17-inch front-firing, high-excursion

Cone Material

Glass-fiber composite

Voice Coils

Dual 8-inch

Amplifier

Sledge STA-2800D

Amplifier Configuration

Dual-monoblock Class D

Continuous Power

2,800 watts RMS

Peak Power

6,000+ watts

Frequency Response

15–320Hz ±3dB

DSP

295MHz Analog Devices

DSP Filtering

56-bit

Parametric EQ

6-band

Room Correction

SVS Auto EQ

Custom Presets

3

Inputs

Stereo RCA and balanced XLR

Outputs

Stereo RCA and balanced XLR

Additional Connectivity

12V trigger, IR input, USB power

Rear Controls

OLED display and control interface

Dimensions With Grille

20" H × 19.5" W × 21.2" D

Dimensions Without Grille

20" H × 19.5" W × 20.3" D

Weight

124 lbs

Finishes

Piano Gloss Black, Black Oak Veneer

Warranty

5 years


Experience the SVS SB17-Ultra R|Evolution at The Grid HiFi

The SB17-Ultra R|Evolution is designed for listeners who demand exceptional bass performance from their music and home theater systems.

Its combination of a massive 17-inch driver, 2,800 watts of amplification, sophisticated room correction, and sealed-cabinet engineering delivers an extraordinary foundation for premium audio.

At The Grid HiFi in Houston, our team can help you determine the ideal subwoofer configuration, optimize placement, and integrate the SB17-Ultra R|Evolution with your existing loudspeakers and electronics.

Contact us for pricing, availability, and system recommendations.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.