SVS - PB17-Ultra R|Evolution - Subwoofer Review at The Audio Tailor explores the most formidable sealed subwoofer we’ve ever encountered. With a groundbreaking 17-inch driver, dual 8-inch voice coils, and the most powerful amplifier ever deployed in a consumer subwoofer, this reference-grade marvel redefines what deep bass can achieve.

Design & Build: A Solid Foundation for Earth-Shaking Bass

The PB17-Ultra R|Evolution’s cabinet is a masterclass in rigidity and resonance control. Built from thick, braced MDF and finished in piano gloss black or Black Oak real wood veneer, its medium-density construction ensures every decibel of low-frequency energy is delivered without panel flex or unwanted coloration. Triple high-flow 4-inch ports remain sealed in sealed-mode for 14Hz–320Hz extension, or partially open for extended room gain down to 12Hz.

Driver & Amplification: Unprecedented Power and Control

At its heart lies an all-new 17-inch glass-fibre composite cone with an SBR rubber surround, engineered for 48.9mm X_max and 81.78mm X_mech excursion. Dual 8-inch bi-filar voice coils conduct immense current from the STA-2800D dual mono-block Class-D amplifier, each powered by eight 60A/200V MOSFETs. The toroidal ferrite motor assembly, weighing over 25kg, yields chest-compressing SPL with pinpoint piston-like control.

Power Management & DSP Intelligence

Voltage fluctuations are neutralised by an onboard AC line conditioner and power-factor-correction circuit, guaranteeing a clean, stable 160V rail. Orchestrating this powerhouse is a 295MHz Analog Devices DSP with 56-bit filtering, monitoring thermal, voltage, and current parameters to maintain consistent peak output and 120dB signal-to-noise ratio. The result? Reference-level dynamics at any volume, without sacrifice.

Performance: Reference-Level Output with Pristine Accuracy

The PB17-Ultra R|Evolution unleashes visceral impact with effortless extension to 12Hz, delivering both the thunderous slam of cinematic soundtracks and the delicate nuance of musical bass. Whether you’re listening to organ pedal tones or feeling the rumble of an on-screen explosion, every note is rendered with unerring accuracy. To explore how this subwoofer transforms your space, speak with our experts on 1300 308 711 or email us.

Subwoofer Control App & Auto EQ

Fine-tune volume, low-pass filter, phase, polarity, and six parametric EQ bands via the SVS Subwoofer Control app (iOS/Android). Three memory presets let you switch between music, movies, and night-mode instantly. The forthcoming Auto EQ room-correction feature will automatically calibrate the PB17-Ultra’s output to your listening position—seamless optimisation via over-the-air update.

Who Should Consider the PB17-Ultra R|Evolution?

Ideal for dedicated audiophiles, home-theatre enthusiasts, and music lovers with large rooms seeking reference-grade low frequencies. If you demand cavern-shaking SPL without distortion, surgical accuracy below 20Hz, and the intelligence of DSP and auto EQ, this is your subwoofer.

Pros & Cons

• Pros: Industry-leading 17-inch driver, dual 8-inch voice coils, dual mono-block STA-2800D amplifier, 295 MHz DSP, extension to 12 Hz, app control with upcoming Auto EQ.
• Pros: Powerful Class-D MOSFET output, clean SMPS with PFC, robust MDF cabinet, refined finishes, OLED rear panel interface.
• Pros: Unrivalled headroom and accuracy for both music and movies, easy smartphone control, Australian support from our team.
• Cons: Substantial size and weight (74.7 kg), premium investment for reference-level performance.

Elevate Your Low-Frequency Experience

Ready to feel the seismic impact of the SVS PB17-Ultra R|Evolution? Visit the product page for full details, or call our knowledgeable team at The Audio Tailor on 1300 308 711. Discover why this sealed subwoofer sets the new benchmark for deep, accurate bass.