SKU: 43583566332

SVS SB17-Ultra R|Evolution Sealed Box Subwoofer

Sale price$2699.55 Regular price$2999.50
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

SVS SB17-Ultra R|Evolution Sealed Box SubwooferThe ultimate reference standard for low frequency excellence from a sealed cabinet subwoofer design. Born from three decades of SVS design expertise, the pinnacle of subwoofer performance is here with the SB17 Ultra R Evolution. Reimagined dual mono block STA 2800 amplifier technology, first ever 17 in driver with dual 8 in voice coils, and the most powerful DSP ever used in a consumer subwoofer married to advanced power management and auto EQ room


The ultimate reference standard for low frequency excellence from a sealed cabinet subwoofer design.

Born from three decades of SVS design expertise, the pinnacle of subwoofer performance is here with the SB17-Ultra R|Evolution. Reimagined dual mono-block STA-2800 amplifier technology, first ever 17-in driver with dual 8-in voice coils, and the most powerful DSP ever used in a consumer subwoofer married to advanced power management and auto EQ room calibration. 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.

Whether heard or felt, low frequencies are handled effortlessly without sacrificing sonic fidelity and refinement. With extension to 15 Hz, far below the threshold of human hearing SB17-Ultra R|Evolution brings sound to life with convincing, visceral, and jaw-dropping impact.

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 Coil

  • 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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43583566332

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Amazon Customer
Pawtucket, US
★★★★★ 3
Ok
Not bad not great. Quality feels cheap.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
M
Verified Purchase
Mike H
Draper, US
★★★★★ 5
Lower unit water pump
Worked fine
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Reviewed in the United States on October 16, 2025
R
Verified Purchase
ray whit
Battle Creek, US
★★★★★ 5
Water impeller Johnson
Size: 85-300 HP
Worked perfect for my 1988 Johnson 88 spl already been on the water, no issues.
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Reviewed in the United States on April 15, 2026
B
Verified Purchase
Brent Fuhrmann
Belleville, US
★★★★★ 5
Great product
Size: 75-250 HP
Great product would purchase again
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Reviewed in the United States on May 25, 2026
Y
Verified Purchase
YouDon'tKnowMe
Boise, US
★★★★★ 5
1991 Evinrude 40 hp
Size: 40-50 HP
2nd time purchasing this item. The 1st one lasted 2 years, but my boat hasn't been used a lot either. The marine mechanic who replaced it for me said it was definitely time to replace it. He said it fits and works just fine. Has good water flow. As for quality and value, I'd say decent. The price is better than an OMC OEM pump. I plan on using my boat more this year, so we'll see how it holds up. I'll get it replaced at the end of the year. Ease of installation, NOT EASY. The lower unit has to be completely removed from the outboard. Some outboard are easier than others and as old as this one is, it's probably easier than some of the newer ones. I've watched a couple of videos on YouTube on how to do it and I might try to do it myself next time. It cost $360 to have it done and that's with me supplying the pump. He said it took him about 1½hours to do the job, but I was charged for 3 hours labor. Probably what the book shows. I'd buy it again and I'll try to do the job myself.
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Reviewed in the United States on March 18, 2026

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