SVS SB17-Ultra R|Evolution Subwoofer (Black Gloss)
Taxes included.
Shipping calculated at checkout.
Standard delivery within 2–5 business days
This product is not available for purchase online. Please call to enquire.
Request Quote
Ask for a price, product details or a supply-and-install quote. We'll reply with the details for this exact product.
SVS SB17-Ultra R|Evolution Subwoofer (Black Gloss)
SVS's flagship sealed subwoofer for reference home cinema and hi-fi. The SB17-Ultra R|Evolution pairs a 17-inch driver with dual 8-inch voice coils, a 2,800-watt RMS dual-mono amplifier and a 295MHz DSP, extending to 15Hz with SVS Auto EQ room calibration and full smartphone app control.
The 17-Ultra R|Evolution Series is a ground-up redesign with multiple SVS firsts, including the first dual-mono SVS amplifier and 8-inch dual voice coils. The sealed SB17-Ultra delivers enormous, effortless output with the speed, control and tonal accuracy demanded by the most discerning listeners.
Key Features
High-Excursion 17-inch Driver
- Light, rigid 17-inch glass-fibre composite cone
- 55 lb four-piece toroidal ferrite motor
- Extreme-excursion catenary SBR rubber surround for long, pistonic travel
Dual 8-inch Voice Coils
- 4-layer bi-filar dual voice coils with high thermal efficiency
- Copper-clad aluminium voice coil wire for stable energy transfer and precise driver control
STA-2800D Dual-Mono Amplifier
- 2,800 watts RMS continuous, 6,000+ watts peak dynamic
- SVS's first dual-mono design: two Class D monoblocks with discrete MOSFET outputs, each driving one voice coil
- Eight 60A / 200V MOSFETs
Switch Mode Power Supply with PFC
- Onboard AC line conditioning stabilises voltage and filters interference
- Maintains a stable 160V rail from a standard 15A household circuit
- Power factor correction for efficiency and consistent peak output
- Convection cooling with no exterior heatsinks
295MHz Analog Devices DSP
Shapes in-room frequency response with precision, stabilises power delivery and runs multi-point thermal, voltage and current monitoring, with 120dB signal-to-noise DACs.
SVS Subwoofer App and Auto EQ
- Bluetooth control on iOS, Android and Amazon Fire: volume, low-pass filter, phase, polarity, six parametric EQs, room gain compensation, tuning modes and power management
- Three memory presets; rear-panel OLED with display-flip function
- SVS Auto EQ uses your phone or the optional SVS Auto EQ Mic to smooth response across seats and reduce peaks, nulls and localisation
Specifications
| Specification | Details |
|---|---|
| Model | SB17-Ultra R|Evolution |
| Cabinet Configuration | Sealed |
| Driver | 17" high-excursion driver with dual 8" voice coils |
| Amplifier | 2800 watts RMS (6000+ watts peak), STA-2800D dual-mono discrete Class D |
| Frequency Response | 15 Hz to 320 Hz +/- 3 dB |
| DSP | 295 MHz Analog Devices audio DSP, 56-bit filtering |
| DAC Signal-to-Noise Ratio | 120 dB |
| Inputs | Unbalanced RCA (10 kohm, up to 4 Vrms), Balanced XLR (14 kohm, up to 14 Vrms / +24 dBu) |
| Control & Integration | 3.5 mm trigger (3-12 V AC/DC), 3.5 mm IR input, Auto/On, USB power for SVS SoundPath Wireless Audio Adapter |
| Standby Power | 0.5 W |
| Dimensions (with grille) | 20.0" (507 mm) H x 19.5" (495 mm) W x 21.2" (537 mm) D |
| Dimensions (without grille) | 20.0" (507 mm) H x 19.5" (495 mm) W x 20.3" (516 mm) D |
| Shipped Dimensions | 24.8" (630 mm) H x 24.9" (633 mm) W x 29.8" (757 mm) D |
| Weight (unboxed) | 124.0 lb (56.25 kg) |
| Shipped Weight | 136.0 lb (61.7 kg) |
| Colour | Black Gloss |
Driver Specifications
| Specification | Details |
|---|---|
| Driver Weight | 63.76 lb (28.92 kg) woofer with 54.17 lb (24.57 kg) motor |
| Excursion | 48.9 mm Xmax, 81.78 mm Xmech |
| Voice Coil | 8" diameter, 4-layer bifilar copper-clad aluminium windings |
| Motor | Four-piece Y35 ferrite magnet, 1010 steel top plate, oversized T-yoke, dual shorting rings |
| Suspension | Dual Nomex extreme-excursion linear spiders |
| Surround | Custom SBR rubber catenary |
| Cone | Vented composite sub-structure with glass-fibre laminated dustcap |
| Basket | 17" powder-coated cast aluminium |
In the Box
- SB17-Ultra R|Evolution subwoofer
- Extra-thick ABS grille frame with fabric mesh cover
- Iso-elastomer feet
- Heavy-duty 6' power cord
- Quick Start Guide
Downloads
- SB17-Ultra R|Evolution Owner's Manual (PDF, svsound.com)
- SB17-Ultra R|Evolution Quick Start Guide (PDF, svsound.com)
Specifications sourced from the manufacturer, SVS (svsound.com). Prices are recommended retail including 15% VAT.
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.