SVS SB17 Ultra R|Evolution Sealed Subwoofer

SVS SB17-Ultra R|Evolution Subwoofer

The SVS SB17-Ultra R|Evolution Subwoofer is a reference-grade sealed subwoofer engineered for chest-thumping movie impact and fast, textured musical bass—without boom or overhang. At its core is a massive front-firing 17-inch high-excursion driver with a groundbreaking dual 8-inch voice coil motor system, powered by the formidable Sledge STA-2800D amplifier delivering 2,800W RMS (6,000+W peak). The result is deep, pressurizing low-end with the speed and control sealed subwoofers are known for, reaching a stunning 15Hz to 320Hz (+/-3dB).

Dial in bass exactly for your room and system using the SVS Subwoofer Control App (iOS/Android/Amazon Fire) with advanced DSP tools—including six parametric EQ bands, phase, polarity, low-pass control, and presets—plus Auto EQ room correction (available via over-the-air app update soon). With both RCA and balanced XLR stereo I/O, flexible power management, trigger/IR integration, and an OLED rear-panel interface, the SB17-Ultra R|Evolution is built to anchor elite home theaters and uncompromising two-channel setups alike. The SVS SB17 Ultra R is part of ListenUp's SVS Sealed Subwoofers Collection.

What It's Good At:

• Delivering reference-level, sealed-subwoofer bass that hits hard and stops fast for tight musicality
• Reaching ultra-deep low frequencies down to 15Hz for cinematic rumble you feel as much as hear
• Providing massive headroom with 2,800W RMS / 6,000+W peak power for large rooms and demanding content
• Offering pro-grade connectivity with RCA + balanced XLR input/output for consumer or professional systems
• Making setup and tuning easy with the SVS App, including PEQ, presets, phase/polarity, and more
• Integrating cleanly into smart systems via 3.5mm trigger, IR input, USB power, and low standby consumption

SVS SB17-Ultra R Full Specifications:

• Frequency response: 15Hz to 320Hz +/-3dB
• Roll-off tuning: Optimized to maximize available room gain
• Measurement method: 2-meter ground plane away from reflective structures (quasi-anechoic)
• Subwoofer type: Sealed
• Driver orientation: Front-firing
• Driver: Front Firing 17-inch high-excursion SVS driver
• Finishes: Piano Gloss Black; Black Oak Real Wood Veneer
• Grille: Protective non-resonant extra-thick ABS grille frame with fabric mesh cover
• Cabinet: Robust MDF with internal bracing
• Feet: Screw-in iso-elastomer feet
• Rear interface: Amplifier rear panel OLED + control interface; “Display Flip” function
• 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)
• Amplifier: Sledge STA-2800D
• Amplifier power: 2800W RMS continuous (6000+W peak dynamic)
• Amplifier topology: Dual-mono discrete Class D; eight 60A 200V MOSFETs
• DSP: 295Mhz Analog Devices Audio DSP; 56bit filtering
• DAC performance: 120 dB Signal-to-Noise Ratio
• Power supply: SMPS with two-stage 100v–240v full range active PFC; pre-regulates to 390V DC
• Rail voltage: Consistent 160V rail voltage for dual-mono amps
• Power conditioning: Onboard AC line conditioner; EMI/RFI reduction
• Cooling: Convective cooling plate design (no external heatsinks)
• Auto EQ & limiter: User auto EQ and DSP limiter settings specific to 17-Ultra
• AC power requirement: 100V–240V ~ 50–60Hz, 2000W
• Standby power: 0.5W low standby
• Compliance: RoHS compliant, lead-free construction, worldwide safety certifications
• Analog I/O: XLR and RCA stereo input/output; ultra-wide input voltage bandwidth (up to 4V line level input)
• RCA input impedance: 10kohm (compatible up to 4Vrms inputs)
• XLR input impedance: 14kohm (compatible up to 14Vrms / +24dBu inputs)
• USB: Type-A for firmware updates and power for SVS SoundPath Wireless Audio Adapter (sold separately)
• Power modes: Auto/On; Trigger options through app
• Trigger input: 3.5mm trigger input 3–12V AC/DC
• IR input: 3.5mm IR input
• LFE mode: LFE On/Off
• SVS App platforms: Apple iOS; Google Android; Amazon Fire
• SVS App controls: Volume; adjustable low pass filter; phase; polarity; six PEQs; room gain compensation; tuning modes; power management; more
• Presets: Three memory presets
• Auto room EQ: Subwoofer Auto Room Equalization (available via over-the-air app update soon)
• Measurement method for EQ: Uses mobile device built-in microphone
• EQ creation: Automatically calculates EQ filters for listening position
• Guidance: App tutorial for functions
• Included accessories: ABS grille frame with fabric mesh cover; iso-elastomer feet; heavy-duty 6’ power cord; Quick Start Guide
• Driver motor/structure: Overhung motor configuration; 63.76lb woofer; 54.17lb motor; Y35 ferrite magnet motor
• Excursion: 48.9mm Xmax; 81.78mm Xmech
• Voice coil: 8” diameter; 4-layer bifilar copper-clad aluminum windings; dual voice coil design
• Distortion reduction: Dual shorting rings
• Leads: Dual 25-strand copper-alloy and Nomex composite high-temperature leads
• Motor steelwork: 1010 steel top-plate; oversized T-yoke with pole-piece extension
• Suspension: Dual Nomex extreme excursion linear suspension spiders
• Surround: Extreme-excursion catenary SBR rubber surround
• Radiating structure: Glass-fiber laminated dustcap; vented composite cone sub-structure
• Basket: High-density 17” powder-coated cast aluminum basket (FEA optimized)
• Terminals: Nickel-plated high-tension spring terminals

SVS SB17-Ultra R Q&A:

Will the SB17-Ultra R|Evolution work well for both movies and music?

Yes. Its sealed design and powerful DSP deliver fast, controlled bass for music while still producing room-pressurizing impact for movie soundtracks down to 15Hz.

How deep does this subwoofer play?

The rated frequency response is 15Hz to 320Hz (+/-3dB), delivering ultra-deep low-frequency extension well into infrasonic territory.

What connections does it support—RCA, XLR, or both?

It supports both RCA and balanced XLR, including stereo input/output so it can integrate into consumer home theaters and higher-voltage/pro audio-style setups.

Can I control it from my phone?

Yes. The SVS Subwoofer Control App (iOS/Android/Amazon Fire) lets you adjust volume, low pass, phase, polarity, room gain compensation, tuning modes, power settings, and six parametric EQ bands, plus presets.

Is Auto EQ room correction included?

Auto EQ room correction is designed for the platform and is noted as available via an over-the-air app update soon, allowing guided in-room measurement and EQ filter creation.

Does it support a 12V trigger and IR control systems?

Yes. It includes a 3.5mm trigger input (3–12V AC/DC) and a 3.5mm IR input for easier integration with control systems.

How big and heavy is it?

With the grille installed it measures 20.0” H x 19.5” W x 21.2” D and weighs 124.0 lbs unboxed (136.0 lbs shipped), so plan for a sturdy placement and a careful unboxing.

Can I run dual SB17-Ultra R|Evolution subwoofers or daisy-chain multiple subs?

Yes. Using the RCA/XLR outputs, you can pass signal to additional subs for dual (or more) subwoofer setups, helping smooth bass response across more seats.

SVS SB17-Ultra R Downloads:

SVS SB17 Ultra R Owner's Manual
SVS SB17 Ultra R Quick Start Guide