Product Description
SVS SB17-Ultra R|Evolution Subwoofer
We’ve never heard bass like this before. The SB17-Ultra R|Evolution redefines what a sealed cabinet subwoofer can do, delivering breathtaking low frequencies with both brute force and finesse. It digs all the way down to 15Hz, giving movies a chest-thumping slam and music an honesty and nuance that feels truly alive.
The new 17-inch driver with dual 8-inch voice coils, driven by dual monoblock Class-D amplifiers (2,800W RMS), handles everything effortlessly — from subtle textures to jaw-dropping impact — always with absolute control. Backed by SVS’s most powerful DSP to date and automatic room calibration, performance is precise, balanced, and perfectly tailored to any space.
The SB17-Ultra is easy to live with too. The SVS app gives full control over EQ, presets, filters, and tuning, while the acoustically tuned sealed cabinet ensures resonance-free, natural bass.
For us, this is the new reference standard in subwoofers: uncompromising, visceral, and built to thrill.
- 15Hz to 320Hz +/-3dB
- Roll-off slope specifically optimised to take maximum advantage of available room gain.
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 Fibreboard (MDF) cabinet construction with internal bracing for resonance free performance at highest drive levels
- 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): 507mm H x 495mm W x 537mm D
- Dimensions (without grille): 507mm H x 495mm W x 516mm D    
- Weight: 56.25kg
Full specs here: https://www.svsound.com/products/sb17-ultra-revolution-subwoofer
