Product Description
SVS PB17-Ultra R|Evolution Subwoofer
The PB17-Ultra R|Evolution is the most powerful ported subwoofer we’ve ever experienced. It reaches an astonishing 12Hz — lower than the threshold of human hearing — with bass that you don’t just hear, but feel in your chest and throughout the room.
From delicate musical detail to earth-shaking cinematic impact, the 17-inch driver with dual 8-inch voice coils delivers it all with accuracy, control, and seemingly endless headroom. Powered by dual monoblock Class-D amplifiers and guided by SVS’s most advanced DSP with auto room calibration, it adapts flawlessly to any space while keeping every note tight and precise.
The acoustically tuned, ported cabinet with triple flared ports unleashes deep, thunderous output without distortion, while the SVS app puts complete control of EQ, presets, and system settings right at your fingertips.
For us, the PB17-Ultra R|Evolution sets the ultimate benchmark in subwoofer design — massive, musical, and uncompromising in every way.
- 14Hz to 220Hz +/-3dB (standard mode – all ports open)
- 12Hz to 220Hz +/-3dB (extended mode – 2 ports open)
- 14Hz to 320Hz +/-3dB (sealed mode – all ports sealed)
- Roll-off slope specifically optimised 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 driver
- Triple High-flow 4-inch ports
- Amplifier Rear Panel OLED and control interface provide fast and direct control of the most important features and includes a convenient “Display Flip” function.
- Protective non-resonant extra-thick ABS grille frame with fabric mesh cover shields driver to prevent damage while ensuring longevity.
- Robust Medium Density Fibreboard (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
- Dimensions (with grille): 635mm H x 550mm W x 744mm D
- Dimensions (without grille): 635mm H x 550mm W x 723mm D    
- Weight: 74.7kg
Full specs here: https://www.svsound.com/products/pb17-ultra-revolution-subwoofer
