SVS SB17-Ultra R|Evolution Subwoofer

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).

Frequency Response / Acoustic Data

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 interferen








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).

Frequency Response / Acoustic Data

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 interferen