{"product_id":"svs-sb17-ultra-r-evolution-ported-box-subwoofer","title":"SVS SB17 Ultra R|EVolution Ported Box Subwoofer","description":"\u003ch2\u003eSB17-Ultra R|Evolution\u003c\/h2\u003e\n\u003cp\u003eA quantum leap forward in design and performance with multiple groundbreaking innovations - the most formidable and sophisticated sealed subwoofer ever developed.\u003c\/p\u003e\n\u003cp\u003eAll-new 17-inch driver with first-ever dual 8-inch voice coils. The most powerful amplifier ever deployed in a consumer subwoofer with unprecedented dual mono-block design married to the extreme intelligence of a 295MHz DSP. All managed by the most sophisticated subwoofer control app, now with SVS Auto EQ room correction.\u003c\/p\u003e\n\u003cp\u003eBorn from three decades of SVS design expertise, SB17-Ultra R|Evolution is the pinnacle of subwoofer performance. A massive 17-inch driver with first ever dual 8-in voice coils driven by the most powerful amplifier ever deployed in a consumer subwoofer with DSP intelligence far beyond anything available. All married to advanced power management and SVS Auto EQ room correction. The benchmark for reference subwoofer experiences has arrived.\u003c\/p\u003e\n\u003cp\u003eBreathtaking 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.\u003c\/p\u003e\n\u003cp\u003eWhether 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.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/sb17-lifestyle.jpg?v=1788576735\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eEffortless Output from High-Excursion 17-inch SVS Driver\u003c\/h4\u003e\n\u003cp\u003eIt was a ground-up process designing the largest, most formidable driver ever deployed in an SVS subwoofer. An all-new dual voice coil, suspension, basket, and extreme-excursion surround achieve chest-compressing sound pressure levels with flawless tonal accuracy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight and rigid 17-inch glass fiber composite cone with optimal stiffness-to-mass ratio for maximum efficiency and acoustic linearity\u003c\/li\u003e\n\u003cli\u003e55lb four-piece toroidal ferrite electromagnetic motor generates massive force with precise control, remaining authoritative yet detailed and controlled\u003c\/li\u003e\n\u003cli\u003eExtreme-excursion catenary SBR rubber surround maintains pure, long-throw pistonic driver motion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/17-ultradriverexplode_1.jpg?v=1788576736\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eUnerring Control from Revolutionary Dual 8-inch Voice Coils\u003c\/h4\u003e\n\u003cp\u003eUnprecedented dual 8-inch voice coils ensure stable transfer of electro-magnetic current to the 17-inch driver for authoritative output and pinpoint driver control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4-layer bi-filar dual voice coils conduct the massive power from the dual-mono amplifier to the motor with maximum thermal efficiency, resulting in effortless acoustic output\u003c\/li\u003e\n\u003cli\u003eCopper clad aluminum voice coil wire combines the best properties of both elements, yielding ideal thermal capacity and magnetic field strength\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFirst Ever Dual Mono STA-2800D Amplifier Design with Discrete MOSFET Output\u003c\/h4\u003e\n\u003cp\u003eThe sonic muscle behind the most powerful and highest fidelity SVS subwoofer amplifier ever developed. SB17-Ultra R|Evolution STA-2800D features technological innovations never offered before in a consumer subwoofer amplifier with breakthroughs to ensure refined behavior and pristine response at any volume.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimitless headroom from dual mono-block Class-D amplifiers with MOSFET output stages\u003c\/li\u003e\n\u003cli\u003eEach amp drives one of the dual 8-inch voice coils within the motor to assert pinpoint control and maximize power fed to the driver\u003c\/li\u003e\n\u003cli\u003eEight 60 Amp 200 Volt MOSFETs deliver extreme high current for reference-level output with maximum efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/17-ultra-amp_1.jpg?v=1788576736\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003ePerformance Enhancing Switch Mode Power Supply\u003c\/h4\u003e\n\u003cp\u003eRegardless of the power coming out of your household circuit, the SB17-Ultra R|Evolution always maintains peak performance and remains impervious to voltage fluctuations.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnboard AC line conditioner filters and stabilizes incoming voltage, corrects waveform distortions, and eliminates electromagnetic and radio interferences to optimize signal quality and audio performance\u003c\/li\u003e\n\u003cli\u003eEnsures clean and consistent 160V rail voltage and optimal power delivery from a standard 15-amp home circuit\u003c\/li\u003e\n\u003cli\u003ePower-Factor-Correction (PFC) time aligns the AC voltage to the AC current resulting in less heat, greater efficiency, reliable peak power output, and the ability to maintain rated power over a wide-range of voltages\u003c\/li\u003e\n\u003cli\u003eFEA optimized convection cooling system has no exterior heatsinks, an extraordinary feat for such a powerful amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/svs_dsp_1_1_d1595897-7bdb-449a-ae23-bab1143a1b76.jpg?v=1788577090\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eExtreme Subwoofer Intelligence – 295 MHz Analog Devices DSP\u003c\/h4\u003e\n\u003cp\u003eOrchestrating the cutting-edge amplifier, motor, and driver ecosystem is the most sophisticated DSP ever deployed in a consumer subwoofer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurately shapes in-room frequency response with absolute precision for faithful signal reproduction\u003c\/li\u003e\n\u003cli\u003eMonitors every function of the amplifier to stabilize AC voltage delivery to the power supply to maintain consistent peak output\u003c\/li\u003e\n\u003cli\u003eMulti-point thermal, voltage, and current monitoring systems ensures maximum output and efficiency\u003c\/li\u003e\n\u003cli\u003eAdvanced digital audio processing and DACs (Digital-to-Analog Converters) with 120 dB Signal-to-Noise Ratio provide greater headroom, lower noise, and pristine fidelity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/o_R_Evolution_Compact_Subwoofer_with_Deep_Musical_Bass.jpg?v=1788564090\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eSVS Subwoofer Smartphone Control App Now with Auto EQ Room Correction\u003c\/h4\u003e\n\u003cp\u003eCompatible with Apple iOS, Google Android, and Amazon Fire platforms, the SVS Subwoofer Control Smartphone app allows convenient subwoofer tuning and management.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControls for volume, low pass filter, phase, polarity, six parametric equalizers, room gain compensation, tuning modes, power management settings, and more\u003c\/li\u003e\n\u003cli\u003eIncludes three convenient memory presets for fast and easy system adjustments to match your listening preferences – music, movies, night mode, and more\u003c\/li\u003e\n\u003cli\u003eAmplifier Rear Panel OLED and control interface provide fast and direct control of the most important features and includes a convenient “Display Flip” function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/auto-eq-phone-1_1.jpg?v=1788563940\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eSubwoofer Output Tuned to Your Room - SVS Auto EQ\u003c\/h4\u003e\n\u003cp\u003eRooms have a major impact on subwoofer performance. SVS Auto EQ analyzes your listening environment and optimizes subwoofer output for your specific space using the SVS Subwoofer Control App and a smartphone microphone or optional external microphone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple over-the-air update and guided setup in minutes\u003c\/li\u003e\n\u003cli\u003eOptimized performance across multiple listening positions\u003c\/li\u003e\n\u003cli\u003eSmoother, more balanced and musical bass\u003c\/li\u003e\n\u003cli\u003eImproved frequency response and tonal accuracy\u003c\/li\u003e\n\u003cli\u003eAcoustically optimized room gain for deeper extension and greater impact\u003c\/li\u003e\n\u003cli\u003eReduces localization, peaks, and nulls caused by room acoustics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e17-Ultra R|Evolution Series Technology\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA Quantum Leap Forward in Subwoofer Design and Performance.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/Screenshot_2026-09-05_at_10-50-35_SVS_SB17-Ultra_R_Evolution_Subwoofer.png?v=1788576736\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-Excursion 17-Ultra R|Evolution Driver\u003c\/li\u003e\n\u003cli\u003e8-inch Dual Voice Coils\u003c\/li\u003e\n\u003cli\u003eDual Mono Amplifier\u003c\/li\u003e\n\u003cli\u003eSwitch Mode Power Supply\u003c\/li\u003e\n\u003cli\u003e295 MHz Analog Devices DSP\u003c\/li\u003e\n\u003cli\u003eSVS Subwoofer Control Smartphone App\u003c\/li\u003e\n\u003cli\u003eAcoustically Tuned Sealed Cabinet Design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAwards\u003c\/h4\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/audioholics-POY2025_100x_23823fb9-3a73-4ae8-aa98-585778e16901.jpg?v=1788577290\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"694\" height=\"390\" src=\"https:\/\/www.youtube.com\/embed\/FgVKsuzaSzk\" title=\"SVS 17-Ultra R|Evolution Subwoofers - A Quantum Leap Forward in Subwoofer Design.\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003eTech Specs\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency Response \/ Acoustic Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e* Frequency response graph does not denote maximum output capability\u003c\/small\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15Hz to 320Hz +\/-3dB\u003c\/li\u003e\n\u003cli\u003eRoll-off slope specifically optimized to take maximum advantage of available room gain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e2-meter ground plane away from reflective structures (quasi-anechoic).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSubwoofer Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePiano Gloss Black and Black Oak Real Wood Veneer finishes\u003c\/li\u003e\n\u003cli\u003eFront Firing 17-inch high-excursion SVS driver\u003c\/li\u003e\n\u003cli\u003eProtective non-resonant extra-thick ABS grille frame with fabric mesh cover to shield driver\u003c\/li\u003e\n\u003cli\u003eRobust Medium Density Fiberboard (MDF) cabinet construction with internal bracing for resonance free performance at highest drive levels\u003c\/li\u003e\n\u003cli\u003eScrew-in Iso-elastomer feet reduce noise artifacts and improve stability\u003c\/li\u003e\n\u003cli\u003eAmplifier 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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (with grille): 20.0” (507mm) H x 19.5” (495mm) W x 21.2” (537mm) D\u003c\/li\u003e\n\u003cli\u003eDimensions (without grille): 20.0” (507mm) H x 19.5” (495mm) W x 20.3” (516mm) D    \u003c\/li\u003e\n\u003cli\u003eShipped Dimensions: 24.8” (630mm) H X 24.9” (633mm) W X 29.8” (757mm) D\u003c\/li\u003e\n\u003cli\u003eWeight (unboxed): 124.0lbs (56.25kg)\u003c\/li\u003e\n\u003cli\u003eShipped Weight: 136.0lbs (61.7kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDriver Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProprietary SVS 17-inch long-throw driver with high-precision tuned overhung motor configuration\u003c\/li\u003e\n\u003cli\u003e63.76lb (28.92kg) pound Woofer with 54.17lb (24.57kg) pounds motor\u003c\/li\u003e\n\u003cli\u003e48.9mm Xmax, 81.78mm Xmech precision aligned excursion\u003c\/li\u003e\n\u003cli\u003e8” diameter Voice Coil with high current 4-layer bifilar copper-clad aluminum wire windings\u003c\/li\u003e\n\u003cli\u003eDual Voice coil design captures power delivery from dual-mono amplifier outputs into a single voice coil for maximum acoustic output\u003c\/li\u003e\n\u003cli\u003eHigh Temperature glass-fiber composite former\/bobbing\u003c\/li\u003e\n\u003cli\u003eFour-piece high-grade oversized Y35 Ferrite magnet motor produces effortless on-demand driving-force for subtle and over-the-top low frequency sonics\u003c\/li\u003e\n\u003cli\u003eDual shorting rings reduce gap inductance and lower distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDual 25-strand copper-alloy and Nomex composite high-temperature leads woven through the spider provide a pristine electrical connection from the amplifiers to the voice coils\u003c\/li\u003e\n\u003cli\u003ePrecision machined and narrow tolerance low carbon 1010 steel top-plate and oversized T-yoke with integrated pole-piece extension for optimal magnetics and thermal capacity\u003c\/li\u003e\n\u003cli\u003eDual Nomex extreme excursion linear suspension spiders\u003c\/li\u003e\n\u003cli\u003eCustom injection-molded extreme-excursion catenary SBR rubber surround ensures flawless pistonic motion for pinpoint control and accuracy without distortion at reference drive levels\u003c\/li\u003e\n\u003cli\u003ePremium glass-fiber laminated dustcap and vented composite cone sub-structure with exceptional stiffness-to-mass ratio ensures a light, ridged, and neutral radiating surface about to move massive amounts of air with crisp precision\u003c\/li\u003e\n\u003cli\u003eHigh-density 17” Powder-coated cast aluminum basket FEA optimized for maximum rigidity, tensile strength, and energy transference\u003c\/li\u003e\n\u003cli\u003eNickel-plated high-tension spring terminals provide secure connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAmplifier Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSledge STA-2800D with 2800 watts RMS continuous power (6000+ watts peak dynamic power)\u003c\/li\u003e\n\u003cli\u003eDual-mono discrete Class D amplifiers generate endless power from eight massive 60A 200V MOSFETs, resulting in lower EMI and highest efficiency\u003c\/li\u003e\n\u003cli\u003eHigh resolution 295Mhz Analog Devices Audio DSP with double precision 56bit filtering. Over 5x the processing power of previous subwoofers, the most advanced subwoofer processor available for flawless low frequency audio reproduction\u003c\/li\u003e\n\u003cli\u003eMonitors every function of the amplifier ensuring precisely regulated clean voltage is delivered to and from the switch mode power supply and maximum current is pushed to the driver’s voice coils\u003c\/li\u003e\n\u003cli\u003eDSP Continuously runs complex power management algorithms and multi-point thermal, voltage, and current monitoring systems to optimize AC voltage delivery to the power supply for continuous peak performance with maximum performance and greatest efficiency\u003c\/li\u003e\n\u003cli\u003eAdvanced digital audio processing and DACs (Digital-to-Analog Converters) with 120 dB Signal-to-Noise Ratio provide greater headroom, lower noise, and flawless fidelity\u003c\/li\u003e\n\u003cli\u003eAll new Switch Mode Power Supply (SMPS) includes a two-stage 100v-240v full range active Power Factor Correction (PFC) to pre-regulate mains to solid 390V DC regardless of mains voltage or quality. Ensures a consistent 160V rail voltage for dual-mono amplifiers over a wide-range of AC voltages\u003c\/li\u003e\n\u003cli\u003eOnboard AC line conditioner filters and stabilizes incoming voltage, corrects waveform distortions, and eliminates electromagnetic and radio interferences to optimize signal quality\u003c\/li\u003e\n\u003cli\u003ePioneering convective cooling plate design pulls cool outside air through vents at the bottom of the amplifier plate, flowing over the amplifier components and internal heat sinks, eliminating the need for an external heatsinks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eUser auto EQ and DSP limiter settings specifically for the 17-Ultra allow the subwoofer to take control of a room and pressurize it with accurate, heart-pounding, acoustically tuned bass\u003c\/li\u003e\n\u003cli\u003eXLR and RCA stereo input\/output with ultra-wide input voltage bandwidth compliant with consumer and professional audio applications up to 4V line level input\u003c\/li\u003e\n\u003cli\u003eUnbalanced RCA 10kohm input impedance (compatible with consumer and professional audio up to 4Vrms inputs)\u003c\/li\u003e\n\u003cli\u003eBalanced XLR 14kohm input impedance (compatible with consumer and professional audio up to 14Vrms \/ +24dBu inputs) OLED and control interface with easy control of the most important features\u003c\/li\u003e\n\u003cli\u003eUSB provides power for the SVS SoundPath Wireless Audio Adapter (sold separately) which eliminates the need for a cable run to the subwoofer from the source component.\u003c\/li\u003e\n\u003cli\u003eAuto\/On and Trigger options through App for maximum installation convenience (3.5mm trigger Input 3-12V AC\/DC)\u003c\/li\u003e\n\u003cli\u003e3.5mm IR input for easy integration with control systems\u003c\/li\u003e\n\u003cli\u003eGreen 0.5-watt low standby power consumption\u003c\/li\u003e\n\u003cli\u003eRoHS compliant, lead-free construction, world-wide safety certifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSVS App Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with Apple iOS, Google Android, and Amazon Fire platforms, the industry leading SVS Subwoofer Control Smartphone app allows convenient and intuitive management of all subwoofer controls.\u003c\/li\u003e\n\u003cli\u003eThe Analog Devices DSP supports a comprehensive menu of functions, including volume, fully adjustable low pass filter, phase, polarity, six PEQs, room gain compensation, tuning modes, power management settings, and more.\u003c\/li\u003e\n\u003cli\u003eIncludes three convenient memory presets for fast and easy global system adjustments to match listener preferences.\u003c\/li\u003e\n\u003cli\u003eSVS Auto EQ room correction\u003c\/li\u003e\n\u003cli\u003eUses your mobile device’s built-in microphone to measure the acoustic performance of your subwoofer in your room\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically calculates equalization filters to optimize the subwoofer and room combined performance at your listening position\u003c\/li\u003e\n\u003cli\u003eEasy-to-follow tutorial provides clear guidance for all functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtective non-resonant extra-thick ABS grille frame with fabric mesh cover\u003c\/li\u003e\n\u003cli\u003eIso-elastomer feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eExtra heavy-duty, high current 6’ power cord\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVS","offers":[{"title":"Black Oak","offer_id":50932121993459,"sku":"SVS-SB17UL-XX-SUB-BLO","price":5399.0,"currency_code":"AUD","in_stock":true},{"title":"Glossy Black","offer_id":50932122026227,"sku":"SVS-SB17UL-XX-SUB-GBL","price":5399.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0429\/5301\/5446\/files\/1727776075_IMG_2347207.jpg?v=1788577430","url":"https:\/\/www.heynowhifi.com.au\/products\/svs-sb17-ultra-r-evolution-ported-box-subwoofer","provider":"HeyNow Hi-Fi","version":"1.0","type":"link"}