The R Series The R11 is the largest model in the new R Series from UK-based innovators, KEF. It comes before the R7 and R5 floorstanding speakers in terms of size and specification and makes a great accompaniment to the R3 bookshelf speakers and R6 or R2 centre speakers. The R Series is packed full of the latest and greatest innovations from KEF; such features as the trailblazing Metamaterial Absorption Technology (MAT) and Uni-Q® drivers, found in their flagship Reference series and LSX II respectively, are an indicator of great performance. Uni-Q® Across all seven models of the R series, there features the Uni-Q® driver array, consisting of a high-frequency tweeter at the centre of a mid-range driver. On the R11 speaker, this combined unit is found located between four bass drivers—two above and two below. The purpose of such a driver unit is to extend the ‘sweet spot’, thereby yielding optimal listening over a larger area of your room. Now in its twelfth generation, this driver design is the outcome of many technological advancements and in-house modifications. This newest iteration has been designed to perfectly complement the Metamaterial Absorption Technology (MAT) at the centre of KEF’s R series, resulting in incredible sonic detail. A flexible decoupled chassis is one factor contributing to this; such support around the mid-range driver of the R11 speakers minimises midrange vibration to promote ultimate clarity. Metamaterial Absorption Technology The key performance feature of the R11 floorstanding speakers—and the R series more broadly—is the incorporation of Metamaterial Absorption Technology (MAT). It sounds impressive, but what is this exactly? Metamaterial Absorption Technology is a What Hi-Fi? award-winning innovation by KEF in collaboration with the Acoustic Metamaterials Group. It is an absorption solution for speaker drivers which successfully diminishes 99 of unwanted sound. This is approximately 40 better absorption than other loudspeakers, leading to a noticeable difference in sonic clarity and naturalism. Quadruple Bass Definition With a fantastic four bass drivers, the R11 is extremely well-equipped to meet your low-frequency demands. However, with greater bass comes the challenge of control, something KEF has tackled with a two-part structure consisting of a shallow concave aluminium skin and paper cone. The former delivers the stiffness needed to manage resonance and enforces smooth piston movement. Unwanted resonance is further limited by a sophisticated suspension, keeping everything agile for punchy, yet precise bass. Rear-Ported Power Despite having a rear port, the R11 speakers manage to avoid any unwelcome resonance and turbulence through the application of computational fluid dynamics. The results of such calculations are flexible port walls and a strategically sized port flare and profile. Sounds are ultimately untouched by distortive colouration and vibration. Stereo and Home Theatre The R11 Meta floorstanding speakers work great in both stereo or home theatre configurations; for music or film and television. Regardless of room size, the R11 speakers will perform their high-fidelity duties and serve up true-to-recording music or realistic and cinematic sounds. Due to the consistency in driver design and placement across the R series, a full home theatre using R series speakers offers uniformity that’s hard to come by. Features Twelfth generation Uni-Q driver array has been refined over time for next-level clarity Metamaterial Absorption Technology (MAT) diminishes the chance of high-frequency distortion Flexible decoupling chassis helps prevent vibration and noise colouration in the midrange Frequencies meet and mix with an enhanced crossover, resulting in an unspoiled signal delivery Ideal for both stereo and home theatre setups Hybrid aluminium bass drivers with improved stiffness and suspension eliminates unwanted resonance Flexible rear port optimised for minimal sound colouration with computational fluid dynamics A ‘Constrained Layer Damping’ bracing system keeps cabinetry inert Microfibre grilles are included for sleek protection of your speakers’ drivers without inhibiting performance What’s in the Box? Two R11 Meta Floorstanding Speakers Microfibre grilles Plinth and spike accessories Port bungs User manual and warranty information Dimensions with terminal (H x W x D) 1249 x 200 x 384 mm Dimensions with terminal and plinth (H x W x D) 1296 x 311 x 384 mm Weight 36.5 kg Drive Units High frequency 25mm vented aluminium dome Uni-Q Driver with MAT Mid-range 125mm aluminium cone Uni-Q Driver Low frequency 4 x 165mm hybrid aluminium cone bass drivers General Crossover frequency 330Hz, 2.5kHz Frequency range (-6dB) 30Hz – 50kHz Typical in-room bass response (-6dB) 26Hz Frequency response 46Hz – 28kHz Harmonic distortion <1 33 Hz and above <0.5 80Hz – 20kHz Maximum output 113 dB Amplifier requirements 15-300 Watts Nominal impedance 4 Ohms (min. 3.2 Ohms) Sensitivity 90 dB

ProAc DT8 Speakers (Pair) is the brand's new entry-level floor stander that is designed to revolutionise what an entry-level floor stander can achieve. This accessible model punches well above its weight by delivering an exceptional sound performance, within a sleekly crafted and compact cabinet. The DT8 breaks the mould from other floor standers in its price range by utilising more than one type of driver unit material. This means that the materials have been selected that excel at certain frequencies so you can be assured of a solid sound landscape across the frequencies. The DT8 comes in a range of sophisticated finishes such as black aska, cherry, mahogany, maple, oak and silk white, alongside the premium finishes of rosewood and ebony. Intuitive Design The Pagina Mica cone unit utilises 2 x 6.5 inch drivers, and showcases an outstanding bass performance. An intricately detailed and unblemished midrange is delivered by the ported cabinet with side vents and crafted from polypropylene. ProAc's emblematic natural sounding midrange quality and pinpoint detail are delivered thanks to both drivers working together and offering a low-frequency response. A new designed crossover by Stewart Tyler then overlaps the frequency ranges and combines with the brand's inch soft dome tweeter. Innovative Two-Way Design Unlike other speakers that utilise the same driver cone material across their ranges, ProAc has for the first time ever used two different types of mid/bass unit in a two way design. The mixing and matching of driver unit cone materials brilliantly covers different types of music, making this a versatile and flexible design. Tech Specs - Nominal Impedance: 4 Ohms - Recommended Amplifiers: 20 to 180 watts - Frequency Response: 38Hz-30kHz - Sensitivity: 90db linear for 1 watt at 1 metre - Bass/Midrange Drivers: 2 x 6.5 inch bass/mid units - 1 unit featuring Pagina Mica cone and open weave dust cap - 1 unit featuring polypropylene cone and soft polypropylene dust cap, both units working in tandem - Tweeter: ProAc 1 inch unit with silk dome - Crossover: Specially designed to accommodate different types of mid/bass cone materials. Glass fibre board with finest components using - multistrand copper cable. Split crossover allows for bi-amping. - Mode: Floor Standing - Grille: Acoustically Transparent Crimplene - Dimensions (H x W x D): 978mm x 193mm x 229mm - Weight: 26Kg each

Nothing looks, or sounds, quite like Nautilus. A revolution when it launched and still an icon today. Its ethos informs everything we do. Nautilus comes in three standard colors: midnight blue, black, and silver. We also offer a special service that can match any color from a sample or color reference. Redefining sound The long, tapered damping tubes were a revolution, allowing the drive units to work optimally by gently absorbing stray energy. Shaped by sound At a glance, you can see Nautilus is no ordinary speaker, and after nearly three decades it still defines high-end audio. Making magic Constructing the complex shapes and precision drive units demands decades of experience and exacting attention to detail. Crafting a classic Nautilus speakers are hand-built to order, alongside the 800 Series Diamond™, by a dedicated specialist team in the Worthing factory. Infinite colors Nautilus comes in three standard colors: silver, black and midnight blue. But, as befits such a unique speaker, we also offer a special service that can match any color you specify. Setting the standard for the future The striking spirals and tubes of Nautilus came from our research into making speaker drive units behave as we wanted: this Nautilus Tube technology, for which we won a Queen's Award for Innovation, is now found in almost every speaker we make. Thinking beyond the box Nautilus is quite unlike a conventional box speaker: to package our unique Nautilus tubes for use in the home, our designers developed the striking, and space-efficient, spiral form from which the speaker takes its name. But why the Nautilus tube? We want to hear a speaker driver, not its side-effects – conventional boxes contain sound from the rear of the driver, but bring their own problems. Nautilus tapering tubes soak up wayward energy and reduce resonances to the point of insignificance. Specifications Nautilus™ tube loading Active crossover System 4-way tube-loaded loudspeaker system Drive Units 1x 300mm (12 in) aluminium cone bass 1x 100mm (4 in) aluminium/polymer sandwich cone lower midrange 1x 50mm (2 in) aluminium dome upper midrange 1x 25mm (1 in) aluminium dome high-frequency Frequency range -6dB at 10Hz and 25kHz Dispersion Within 2dB of response on reference axis Horizontal: over 60° arc Vertical: over 10° arc Crossover frequency 220Hz, 880Hz, 3.5kHz Power amplifier requirements 4 channels per speaker, rated100W-300W continuous into 8Ω on unclipped programme (each channel to have identical gain and phase) Dimensions Height: 1210mm (47.6 in) Width: 430mm (16.9in) Depth: 1105mm (43.5 in) Net weight Speaker: 44.5kg (98lb) Plinth: 42kg (92lb) Total: 86.5kg (190lb)

Product Description KEF Muon Flagship Speaker draws on the expertise of Ross Lovegrove to transform the finest acoustic engineering into the ultimate loudspeaker form with build integrity. It is sculpted from super-formed aluminium to produce a smooth-edged yet incredibly rigid shape using an evolutionary process to ensure it is perfectly suited to meet the purpose. Technology The powerful bass drivers grant superior bass reproduction and are complimented by key technologies driving the upper mid-range and treble such as Uni-Q driver array for seamless imaging across the entire listening area. ACE (Acoustic Compliance Enhancement) effectively doubles available volume using activated carbon to adsorb air molecules. Muon has succeeded in setting a major benchmark in acoustic transparency. Musical Form Ross Lovegrove's polished aluminium design creates the ideal environment for the drivers to deliver seamless, open sound. The curvaceous form reminiscent of a torso breaks up the aesthetic cabinet mass while providing a smooth, immaculate surface to radiate a field of pure audio. The result is an unprecedented 3D presence. Muon's 6mm thick aluminium shell grants a completely rigid structure for lowest sound-distorting vibrations. Strengthening braces and a damping-compound coating within makes the entire speaker fully inert even at loud volumes. Uni-Q drive array KEF's proprietary 'sit anywhere' Uni-Q driver positions the tweeter in the sonic core of the midrange cone creating a sole, focused source of sound that is widely and evenly dispersed across the room. The smooth curved cabinet boosts the benefits of Uni-Q by eliminating sharp edges that cause diffraction and blur image. This produces truly remarkable sound quality with no obvious "sweet spot" effect experienced anywhere in the listening environment. Muon Story A genuinely stunning presentation of sound-engineering and ground-breaking design, Muon is built individually and meticulously measured in incredibly precise anechoic chambers to ensure top performance. The unique frequency response curve is presented on a supplied certificate signed by the expert craftsman behind it. Muon is an extraordinary sculpture piece as much as it is the ultimate sound system. Wide Bandwidth Muon's outstanding sonics are due to its unconventionally wide bandwidth which replicates incredible highs and lows in your audio that are perceived beyond just listening to adding an extra dimension of realism. Form is wrapped around sound proving that exceptional design and superior audio are not mutually exclusive. An exquisite exhibition of British engineering and design at its very best. DESIGN Four-way closed box floorstanding loudspeaker ACE enclosure DIMENSIONS H x W x D: 2000 x 600 x 380 mm WEIGHT 115kg DRIVE UNITS 6 x 250mm (10in.) LF, 1 x 250mm (10in.) LMF, Uni-Q driver array: MF: 1 x 125mm (5in.) Li-Mg-Al /LCP, hybrid cone HF: 1 x 25mm (1in.) vented aluminium dome, featuring KEF's unique 'Tangerine Waveguide' FREQUENCY RESPONSE 25Hz to 60kHz * (±3dB) CROSSOVER FREQUENCIES 120Hz, 300Hz, 2.3kHz AMPLIFIER REQUIREMENTS 100 to 400W (typical) SENSITIVITY 90dB (2.83V/1m) INPUT IMPEDANCE 4 Ohms LOW FREQUENCY EXTENSION 20Hz (-6dB) * HIGH FREQUENCY EXTENSION 100kHz (-10dB) * MAXIMUM OUTPUT 118dB

JBL 4312G The JBL 4312G is a 3-way, high-performance compact studio monitor in the iconic JBL configuration dating back to 1968. The latest in line of top-notch bookshelf speakers inspired by the legendary Model 4310 Control Monitor, the 4312G delivers thundering bass, with dynamic and clear highs for a thoroughly enjoyable audio experience. Low Frequency Transducer 12-inch (300mm) pure pulp cone woofer Mid Frequency Transducer 5-inch (125mm) polymer-coated pure pulp cone High Frequency Transducer 1-inch (25mm) Magnesium/Aluminum alloy dome tweeter with waveguide Recommended Amplifier Power 10~200 Watts RMS Frequency Response (-6dB) 44Hz~40kHz Sensitivity (2.83V@1m) 90dB Nominal Impedance 6 Ohm Crossover Frequencies 640Hz, 5kHz Enclosure Type Bass-reflex via front-firing port Inputs Five-way Binding Posts Finishes White Woodgrain with Black Cloth Grille Dimensions (H x W x D) 23.5 x 14.25 x 12 inches (597 x 362 x 305mm) Weight 52.4 lbs (23.8kg) each

Product Description ProAc’s Centre Voice speaker is designed to be a centre channel expansion on current 2.1 speakers systems to provide an enhanced and more natural speech sound for the centre channel in your home cinema system. Performs Perfectly ProAc’s Centre Voice speaker uses two 5” bass drivers with a Paganni Mika cone, which is similar to those used in ProAc’s stand-mount Tablette 10 speaker. The tweeter is a 1" silk dome from ProAc, which is also used in many other models. Along with its wide bandwidth and good power handling, the ProAc Centre Voice is a perfect fit when used in a system with other ProAc models, both in style and sound. Enhanced Centre Sound As well as clear dialogue, the Centre Voice also reproduces music exceedingly well, with an accurate and balanced performance. A good bass response is produced despite the compact cabinet design by using the finest components for the body and by installing an improved crossover network that integrates well with the drivers; all the frequencies are clear and precise. Seven Finishes The Centre Voice comes in five standard finishes, Black Ash, Mahogany, Cherry, Maple and Silk White. Two extra finishes are offered but at a premium price, they are Rosewood and Ebony. Tech Specs - Nominal Impedance: 4 ohms - Recommended Amps: 10 - 100 watts - Sensitivity: 88 dB linear for 1W at 1m - Bass Driver: ProAc 5" - Paganni Mika cone with acoustic coat Crossover - Finest components on dedicated circuit board - Multistrand oxygen free copper cable throughout - Split for optional Bi Wiring or Bi Amplification General - Dimensions (HWD): 431.8 x 190.5 x 203.2mm - Grille: Acoustically transparent crimplene

ProAc DT8 Speakers (Pair) is the brand's new entry-level floor stander that is designed to revolutionise what an entry-level floor stander can achieve. This accessible model punches well above its weight by delivering an exceptional sound performance, within a sleekly crafted and compact cabinet. The DT8 breaks the mould from other floor standers in its price range by utilising more than one type of driver unit material. This means that the materials have been selected that excel at certain frequencies so you can be assured of a solid sound landscape across the frequencies. The DT8 comes in a range of sophisticated finishes such as black aska, cherry, mahogany, maple, oak and silk white, alongside the premium finishes of rosewood and ebony. Intuitive Design The Pagina Mica cone unit utilises 2 x 6.5 inch drivers, and showcases an outstanding bass performance. An intricately detailed and unblemished midrange is delivered by the ported cabinet with side vents and crafted from polypropylene. ProAc's emblematic natural sounding midrange quality and pinpoint detail are delivered thanks to both drivers working together and offering a low-frequency response. A new designed crossover by Stewart Tyler then overlaps the frequency ranges and combines with the brand's inch soft dome tweeter. Innovative Two-Way Design Unlike other speakers that utilise the same driver cone material across their ranges, ProAc has for the first time ever used two different types of mid/bass unit in a two way design. The mixing and matching of driver unit cone materials brilliantly covers different types of music, making this a versatile and flexible design. Nominal Impedance: 4 Ohms - Recommended Amplifiers: 20 to 180 watts - Frequency Response: 38Hz-30kHz - Sensitivity: 90db linear for 1 watt at 1 metre - Bass/Midrange Drivers: 2 x 6.5 inch bass/mid units - 1 unit featuring Pagina Mica cone and open weave dust cap - 1 unit featuring polypropylene cone and soft polypropylene dust cap, both units working in tandem - Tweeter: ProAc 1 inch unit with silk dome - Crossover: Specially designed to accommodate different types of mid/bass cone materials. Glass fibre board with finest components using - multistrand copper cable. Split crossover allows for bi-amping. - Mode: Floor Standing - Grille: Acoustically Transparent Crimplene - Dimensions (H x W x D): 978mm x 193mm x 229mm - Weight: 26Kg each

More bass, less space Compact model packs a mighty punch. Controllable, dramatic bass from a subwoofer so small it fits almost anywhere: DB3D is a space-saving high-performance design. Nimble and powerful Solid, dramatic bass is delivered through the rigidity and lightness of the uniquely-shaped, variable thickness Aerofoil™ cone. A question of balance The back-to-back (opposed) drivers cancel out cabinet resonances, ensuring all that power is used to create room-shaking bass, not wasted vibrations. The digital advantage Digital amplification is cool-running and energy efficient, even when working hard, while Dynamic EQ and Room EQ ensure a precise sound for music and movies. Take control By placing control in the palm of your hand, our subwoofer app not only makes our DB Series subwoofers a snap to set up, it also helps maximize your sound quality. Completely belying its compact dimensions, the DB3D is a miniature powerhouse and plumbs depths of LF that no box of these dimensions has any right to. The performance is super-tight, very fast and carries a weighty punch with LFE and two-channel stereo music alike. essentialinstall.com 5 Stars Size & weight Dimensions Height: 360mm (14.1 in) Width: 320mm (12.6 in) Depth: 300mm (11.8 in) Net weight 25kg Technical details Technical features 1000w Class D Hypex amplifier 2 x 200mm (8 in) Aerofoil™ cone drive units in a balanced configuration Digital preamplifier with Dynamic EQ App-based set-up and BT-LE control Description DB Series Subwoofer Drive units 2 x 200mm (8 in) Aerofoil™ cone drive units in a balanced configuration Frequency range -6dB at 8.5Hz - 500Hz Frequency response 10Hz - 350 Hz -3dB (centered on level at 100Hz) Max power output 1000W Inputs 2 x XLR 2 x RCA 2 x 3.5mm 12V trigger RS-232 - 9-pin D connector

Smart Distortion Control Technology The KC62 also innovates with the patent-pending, sensorless Smart Distortion Control Technology. This ground-breaking motional feedback system helps correct any minute abnormalities that may occur. It does this by measuring the current in the voice coil and detecting and correcting any non-linear distortions. This reduces the total harmonic distortion (THD) by up to 75% and thus delivers a more accurate, less coloured bass performance. Music Integrity Engine KC62‘s performance is finetuned even further by a bespoke selection of in-house designed DSP (Digital Signal Processing) algorithms in the form of KEF’s Music Integrity Engine. Algorithms including iBX (Intelligent Bass Extension) and SmartLimiter, which constantly analyses the signal to prevent clipping, work together to ensure the perfect relationship between every component. Turn up the Power The final piece of the performance puzzle is amplification, which the KC62 has in abundance. The twin drivers are powered by 1,000W RMS (2 x 500W) of specially designed Class D amplification, providing exceptional levels of control and the ability to deliver sudden bursts of power when required, for example when enjoying your favourite high-octane action sequence. Well connected The KC62 is also incredibly versatile, with a collection of connection options that allow it to be used with almost any audio system. Line level/speaker level inputs mean it can be connected to any amplifier, line output with HPF allows for exceptional fine-tuned integration, while KEF SmartConnect eliminates any connection issues. The KC62 is also compatible with the KW1 for wireless compatibility with the minimum of fuss. Same performance, everywhere KC62 slips effortlessly into any environment or listening room, thanks to the five pre-set Room Placement Equalisation feature, which ensures you get the same performance from KC62 no matter where you decide to place it; in free space, next to the wall, in a corner, nestled within a cabinet or using the dedicated apartment mode. Design meets substance The KC62 is not just designed to work sonically within your home, but aesthetically as well. Crafted from extruded aluminium, the curved cabinet perfectly blends form and function, providing strength and beauty. Whilst diminutive enough to blend into the décor, the Carbon Black and Mineral White finishes also make KC62 an exceptionally attractive statement. Uni-Core™ Technology At the heart of KC62 is KEF’s innovative, patent-pending Uni-Core driver technology. A completely new take on traditional force cancelling arrangements, the Uni-Core design delivers ultra-compact size and big performance. In order to simultaneously deliver unprecedented performance and the benefits of force cancelling from a compact size, Uni-Core combines both drivers into a single magnet system, with the voice coils concentrically arranged. This allows the cabinet size to be reduced by over a third, while equalling or exceeding the driver excursion of a much larger subwoofer, unlocking more output and depth from less space. P-Flex Surround (aka Origami Surround) The second of the three new technologies in KC62 is a brand-new design of driver surround. The new, patent-pending P-Flex surround is engineered to better resist the acoustic pressure in the cabinet without limiting sensitivity in the same way traditional surround designs do. To achieve this, it uses a unique pleated design inspired by Origami, the Japanese art of paper folding, which resists the internal air pressure without adding excessive mass, allowing the driver to move precisely as required by the audio signal. The result is deeper bass extension and a more accurate and detailed bass reproduction. Twin 6.5-inch Uni-Core force cancelling driver array P-Flex pressure resistant surround design Smart Distortion Control Technology Music Integrity Engine with iBX, SmartLimiter and Room Placement settings 1000W (2 x 500W) RMS Class D amplification Compact sealed aluminium cabinet Exceptionally versatile controls for easy integration with any loudspeaker and any home environment KW1 wireless subwoofer adapter kit compatible for wireless operation Model KC62 Design Uni-Core Force Cancellation Drive units 2 x 6.5 in. drivers Frequency response (±3dB) 11Hz – 200Hz Max output 105dB Amplifier type Built-in Class D Amplifier power 1000W RMS (2 x 500W RMS) Variable low pass filter 40Hz – 140Hz, LFE Input RCA phono sockets Speaker level inputs Line output RCA phono sockets Line output high pass filter 40Hz – 120Hz, Bypass Power requirements 100-240 V ~ 50/60 Hz Power consumption 1000W Weight 14kg (30.9 lbs) Dimension (H x W x D) with rear panel and feet 246 x 256 x 248 mm

JBL Sound: A Heritage of Excellence JBL loudspeakers have been a top choice of music and movie professionals for more than 70 years. They provide incredible sound in movie theaters, concert venues, recording studios, and houses of worship worldwide. But you don’t need to be a professional to enjoy legendary JBL sound. Our home products and systems leverage the same cutting edge technology and acoustic advancements the pros rely on. JBL 4312G 3-way Studio Monitor Loudspeaker The 4312G honors JBL’s storied legacy with the iconic 12-inch (300mm) 3-way configuration that dates back all the way to 1968. Crafted in the mold of the legendary 4310/4311 family, and the more recent 70th Anniversary 4312SE, the 4312G delivers thundering, clear bass, with crystalline and precise highs, even at the highest listening levels. System Type: 3-way Bass-reflex Monitor Low Frequency Transducer: 12-inch (300mm) pure pulp cone woofer (JW3000SW-8) Mid Frequency Transducer: 5-inch (125mm) polymer-coated pure pulp cone (JM125PC-8) High Frequency Transducer: 1-inch (25mm) Magnesium/Aluminum alloy dome tweeter with waveguide (054ALMg-1) Recommended Amplifier Power: 10-200 Watts RMS Frequency Response (-6dB): 44Hz - 40kHz Sensitivity (2.83V@1m): 90dB Nominal Impedance: 6 Ohm Crossover Frequencies: 640Hz, 5kHz Enclosure Type: Bass-reflex via front-firing port Inputs: Five-way Binding Posts Finish: Special Edition White Dimensions (H x W x D): 23.5 x 14.25 x 12 inches (597 x 362 x 305mm) Weight: 52.4 lbs (23.8kg) each

The benchmark of benchmarks Since 1973, The Reference has continually set the benchmark for loudspeakers and sound reproduction. Pioneering the use of digital technologies to achieve the highest audio accuracy, every pair can be matched within 0.5dB to the laboratory-maintained reference standard. Always innovating Since the first Reference speaker, KEF engineers have continued to innovate using what is possible with The Reference. Ground-breaking in its first incarnation, each subsequent iteration of The Reference has added to the world’s knowledge of the science of acoustics. Designed, engineered and handcrafted in UK Since 1961, we have been creating remarkable award-winning loudspeakers at our UK home in Maidstone, Kent. As our flagship HiFi speakers, The Reference is still being designed, engineered, and handcrafted in Maidstone today. Design Three-way bass reflex Drive units Uni-Q driver array: HF: 25 mm (1 in.) aluminium dome with MAT MF: 125 mm (5 in.) aluminium cone Bass units: LF: 4 x 165 mm (6.5 in.) aluminium cone Frequency range free field (-6dB) Short port: 35Hz - 45kHz Long port: 32Hz - 45kHz Frequency range typical in room bass response (-6dB) 25Hz Frequency response (±3dB) 40Hz – 35kHz Crossover frequency 450 Hz, 2.1 kHz Amplifier requirements 50 - 400W Sensitivity (2.83V/1m) 88dB Harmonic distortion 2nd & 3rd harmonics (90dB, 1m) <0.5% 40Hz – 100kHz <0.2% 200Hz – 2kHz <0.1% 2kHz - 20kHz Maximum output (peak sound pressure level at 1m with pink noise) 116dB Impedance 4 Ω (min. 3.2 Ω) Weight 60.2 kg (132.7 lbs.) Dimensions (H x W x D)(with grille and terminal) 1350 x 205 x 462 mm(53.1 x 8.1 x 18.2 in.) Dimensions (H x W x D)(with grille, terminal & plinth) 1402 x 323 x 467 mm(55.2 x 12.7 x 18.4 in.) Downloads Information SheetManualWhite Paper

A tower of bass without peer across the world of audio, the PC4000 is an icon of SVS design innovation standing tall as the most sophisticated cylinder subwoofer SVS has ever developed. Room-energising output and deep bass extension below the threshold of human hearing with less than half the floor space required of comparable ported box subwoofers. An effortlessly powerful amplifier and driver combine with advanced DSP technology for a level of performance and user control not seen at this price before. The PC4000 also comes standard with the SoundPath Subwoofer Isolation System for cleaner sounding bass with increased definition and more punch without room rattle and reduced bass bleed to the rest of the house. Reference Calibre Bass Reference calibre bass with less floor space required, the SVS PC4000 powered subwoofer astounds with its ability to command a room with massive low frequency output and deep bass extension that can be heard and felt while maintaining accuracy and control, all from a cylinder cabinet measuring only 16” in diameter. With trickle down technology from the 16-Ultra Series, named top subwoofers in the world by nearly every audio publication and industry group in 2017, the PC4000 shatters expectations and delivers a level of unrivaled subwoofer performance only available from SVS. Sledge Amplifier Massive output, sophisticated DPS, advanced power management, rated conservatively at 1,200 watts RMS, and 4,000+ watts peak power, the PC4000 Sledge STA-1200D amplifier uses an efficient Class D design combined with fully discrete MOSFET output and a sophisticated Analog Devices DSP engine. The result is a level of effortless power and advanced processing not available from any other powered subwoofer manufacturer. Smartphone App Groundbreaking smartphone app works with Apple iOS® and Android® devices to unleash the full depth, force and nuance of the PC4000 powered subwoofer by controlling all DSP functions including: volume, parametric EQ, low pass filter, phase, polarity, room gain, port tuning, custom presets and system settings. Colour Finish Piano Gloss Black Grille Protective non-resonant steel mesh grille Driver Front-firing 13.5" driver Amplifier Rear-mounted amplifier SoundPath Screw-in Elastomer SoundPath Subwoofer Isolation System Cabinet Construction Robust Medium Density Fibreboard (MDF) Cabinet Construction Cabinet Dimensions 1190mm High x 419mm Diameter Shipped Dimensions 1292mm x 478mm x 487mm Weight Unboxed 41.9kg Shipped Weight 49.35kg Included Accessories Protective Non-Resonant Steel Mesh grill | IR Remote Control | High Current 6" Power Cord | SoundPath Suboofer Isolation System | 3 x Foam Port Tuning Plugs

Power and control The DB2D's digital signal processing ensures punch and control for scintillating home theater – and to make more of your music. Nimble and powerful Solid, dramatic bass is delivered through the rigidity and lightness of the uniquely-shaped, variable thickness Aerofoil™ cone. A question of balance The back-to-back (opposed) drivers cancel out cabinet resonances, ensuring all that power is used to create room-shaking bass, not wasted vibrations. The digital advantage Digital amplification is cool-running and energy efficient, even when working hard, while Dynamic EQ and Room EQ ensure a precise sound for music and movies. Take control By placing control in the palm of your hand, our subwoofer app not only makes our DB Series subwoofers a snap to set up, it also helps maximize your sound quality. Size & weight Dimensions Height: 430mm (16.9 in) Width: 377mm (14.8 in) Depth: 360mm (14.2 in) Net weight 36kg Technical details Technical features 1000w Class D Hypex amplifier 2 x 250mm (10 in) Aerofoil™ cone drive units in a balanced configuration Digital preamplifier with Dynamic EQ App-based set-up and BT-LE control Description DB Series Subwoofer Drive units 2 x 250mm (10 in) Aerofoil™ cone drive units in a balanced configuration Frequency range -6dB at 8.5Hz - 500Hz Frequency response 10Hz - 350 Hz -3dB (centered on level at 100Hz) Max power output 1000W Inputs 2 x XLR 2 x RCA 2 x 3.5mm 12V trigger RS-232 - 9-pin D connector

Kevlar Drivers Following the successful incorporation of carbon fibre drivers, ProAc developed new "K series" drivers made from Kevlar. Kevlar features similar benefits to carbon fibre in that it's light and at the same time rigid. The ProAc 6 1/2” drivers utilised in the K6 feature Kevlar cones made by the same special method as our carbon fibre coned drive units; the cone is painstakingly produced from a mould by hand, a labour intensive process taking many hours to complete. Although Kevlar has proven to be an excellent cone material sonically, the Kevlar ProAc bass drivers require a different porting mechanism in order to realise their full potential. The bass is loaded by an almost invisible vent to produce a wonderfully weighty but exceptionally fast bass response. These drivers are seamlessly crossed over to a 2” dome midrange, the horn of which is manufactured from billet aluminium and for the high frequencies, ProAc’s proven ribbon tweeter has been chosen. Cabinet Design The cabinet on the K6 is a traditional mixture from ProAc of HDF materials of different thicknesses heavily damped with bitumen. Indeed the carcass including bitumen is 35mm thick. The combination of research into carbon fibre and its ingredients have produced a stunningly accurate and detailed loudspeaker, having an electrostatic or panel quality without the drawbacks. Sound Quality Sound is reproduced effortlessly with incredible detail and pinpoint imagery, which often can be muddled by conventional drive units. The K6 is designed for audiophiles and music lovers who are looking for a true high end loudspeaker offering smooth reproduction and an impressively flat response throughout the frequency range. The legendary ProAc qualities of large soundstaging and pin-sharp imaging capabilities complete a highly musical and engaging transducer. Nominal Impedance: 4 ohms Recommended Amplifiers: 10 to 250 watts Frequency Response: 25hz to 30Khz Sensitivity: 90db linear for 1 watt at 1 metre Bass Driver: 2 x 61/2” pro drive units LF: Polymer inside Kevlar cones/Zinc basket Mid Driver: 2” (50mm) soft dome MF: with 6061 Aluminium Alloy Front Plate Tweeter: ProAc ribbon; diaphragm alnico Chamber: magnet and rear damping HF: 6061 Aluminium Alloy Front Plate Crossover: Finest components dedicated dual layer circuit board Cable: ProAc multistrand OFC through out Split: for optional bi-wiring and bi-amping Dimensions (mm): 1185H x 215W x 340D Weight (kg): 44 each Included: Acoustically transparent grilles

It’s a Wrap The new HTM82 D4 may be our most compact centre-channel speaker, but it shares the design DNA of its larger siblings, including the Reverse Wrap cabinet and Matrix™ bracing. The combination of the two technologies ensures a quieter, more acoustically efficient and better-sounding speaker than ever. Reverse Wrap cabinet Instead of a conventional loudspeaker box, our cabinets are made from a continuous curved section of wood, with the drive units mounted at the heart of the curvature. This stiffer, more inert structure resists mechanical resonances far better and also ensures better dispersion of sound. Continuum™ cone midrange Introduced as a huge evolutionary change for us in 2015, the Continuum cone midrange drive has swiftly become a fundamental element in every Bowers & Wilkins loudspeaker. With exceptionally low noise, it ensures outstanding resolution without colouration or masking of detail. Decoupled midrange assembly HTM82 D4 has a dedicated midrange cone using three key Bowers & Wilkins technologies: the Continuum cone, Biomimetic Suspension and midrange decoupling, the latter ensuring minimal interference from the operation of the loudspeaker’s bass drivers. The result is outstanding clarity. The science of sound Innovation is at the heart of everything we do. We question, we examine, we understand and then we evolve. We use computer modelling to explore and reimagine every aspect of loudspeaker design. Size & weight Dimensions Height: 289mm (11.4 in) Width: 715mm (28.1 in) Depth: 369mm (14.5 in) Net weight 25.15kg (55.4 lb) Technical details Technical features Diamond tweeter Solid body Tweeter-on-Top Continuum™ cone FST Anti-Resonance plug Biomimetic Suspension Matrix™ Aerofoil™ cone bass units Flowport Description 3-way vented-box system Drive units 1x ø25mm (1in) Diamond dome high-frequency 1x ø130mm (5in) Continuum cone FST midrange 2x ø165mm (6.5in) Aerofoil cone bass units Frequency range 33Hz to 35kHz Frequency response 45Hz to 28kHz (+/-3dB from reference axis) Sensitivity 89dB (on axis at 2.83Vrms at 1m) Harmonic distortion 2nd and 3rd harmonics (90dB,1m on axis) <1% 100Hz – 20kHz <0.3% 100Hz – 20kHz Nominal impedance 8Ω (minimum 3.0Ω) Recommended amplifier power 50W – 200W into 8Ω on unclipped programme Max recommended cable impedance 0.1Ω

An icon born from The Reference Derived from The Reference, the R6 Meta hosts a suite of class-leading technological innovations to deliver exceptional acoustic performance. Decades of experience combine to create an exciting sound which sets the benchmark for future loudspeaker design. Whether you're looking for a home Hi-Fi solution or multi-channel home theatre, the R-Series reveals levels of detail that must be heard to be believed. etamaterial Absorption Technology A complex maze-like structure, each channel efficiently absorbs a specific frequency and when each channel is combined an acoustic 'black hole' is created, absorbing up to 99 percent of unwanted resonances that occur in the rear of the tweeter. You can expect to hear a more natural, pure acoustic tone. The signature KEF sound A refined 12th-generation Uni-Q driver has been implemented to work along with the MAT technology for a design that's specific to the speaker. This is combined with a re-engineered tweeter gap damper which places two rings of porous material to tame imperfections and resonances, greatly improving detail and clarity. Shadow Flare for improved clarity Designed to allow the 12th-generation Uni-Q drivers to work to their optimum, Shadow Flare is a precision-designed surface which extends the waveguide. This means it no longer has line of sight to the cabinet edges, creating a 'shadow region' where diffraction is highest. The result is an incredibly clear high-frequency sweet spot for more detailed listening. Powerful, deep lows Built with a two-part structure, the R6 Meta delivers the most articulate and powerful bass frequencies. A shallow concave aluminium skin is mounted on top of a paper cone with a unique geometry to effectively reduce resonances for a clean, pristine and deep low-end response. A uniform magnetic field is created with the onboard driver system to reduce harmonic distortion. Flexible Decoupled Chassis First used on the Blade and The Reference loudspeakers, the chassis design is employed to ensure the Uni-Q drivers dramatically reduce colouration of the sound by eliminating cabinet vibrations. By decoupling the midrange driver from the chassis, the vibrations are dissipated and transferred into heat, effectively eliminating any unwanted sound. Get the ultimate sonic experience at home With identical Uni-Q driver arrays deployed on the centre speakers and all other R-Series speakers, the R6 Meta is perfectly capable of being used in an LCR configuration. This configuration creates a consistent sound character, maintaining focus on the audio reproduction and not the equipment, making it perfect for a wide range of home-listening environments. Custom-design microfibre grille Made from multiple pieces layered together, this precision-cut grille features 1,801 cut holes to provide a stylish aesthetic to your speakers, all without interfering with the sonic quality. Perfect for matching the look of your speakers to your environment, they also feature burnished edges for a suede-like feel. Features Metamaterial Absorption Technology (MAT) delivers optimised high-frequency response Enhanced 'sweet spot' for evenly dispersed sound with bespoke 12th-generation Uni-Q driver array Harsh high-frequency resonances are tamed with re-engineered tweeter damper Unwanted vibrations are eliminated with flexible internal chassis to decouple internal bracing from drivers Fine-tuned signal path and superior crossover design delivers signature KEF sound Match sound with visuals without interfering with sound reproduction using the specially-designed microfibre grilles Design Three-way closed box Drive Units HF: 25mm (1in.) Vented Aluminium Dome with MAT MF: 125mm (5in.) Aluminium Cone Bass Driver LF: 2x 165mm (6.5in.) hybrid aluminium cone Crossover frequency 500-Hz, 2.4kHZ Frequency range (-6db) 55Hz - 50kHZ Typical in-room bass response (-6dB) 40Hz Frequency response +/-3dB 65Hz - 28kHz Harmonic Distortion (90dB, 1m) <1 65Hz and above Maximum output 111dB Amplifier requirements 15 - 250W Nominal impedance 4 Ohms (min 3.2 Ohms) Sensitivity (2.83V/1m) 88dB Weight 17.8KG Dimensions (H x W x D) 200 x 625 x 339 mm (7.9 x 24.6 x 13.3 in)

RAZBIJANJE STEREOTIPA Rega AYA zvučnici su rođeni nakon decenije testiranja i razvoja. Smešteni su u jedinstvenoj kutiji od GRC-a (cement ojačan staklenim vlaknima) proizvedenoj u Velikoj Britaniji. Staklena vlakna koja čine konstrukciju smanjuju težinu dok povećavaju strukturalni integritet ovog 2,5-sistemskog band pass- dizajna. Ova tehnika stvara savršenu zvučnu kutiju koja poboljšava performanse dok nudi izuzetnu vrednost za novac. Zahvaljujući kombinaciji konfiguracije nove kutije i drajvera, AYA zvučnici isporučuju jako precizan bass odziv i Regine standardno detaljne srednje i visoke tonove. GLAVNE KARAKTERISTIKE Jedinstvena GRC (cement ojačan staklom) zvučna kutija Band pass dizajn zvučne kutije 2.5-sistemski zvučnik Rega-dizajniran ZRR visokotonac 5" ručno rađen MX-125 mid-woofer 7" ručno rađen RR7.8 bass drajver *Opcionalne mrežice za zvučnike Ako Rega svojim kupcima nastavi da garantuje izuzetne performanse i vrednost, sve veći troškovi proizvodnje MDF zvučnih kutija obloženih pravim drvetom znače da ona neće imati drugog izbora osim da istražuje nove opcije. Nakon decenije testiranja i razvoja, AYA zvučnici se smeštaju u jedinstvenu kutiju od cementa ojačanog staklom, proizvedenu u Velikoj Britaniji. Staklena vlakna, koja čine konstrukciju, smanjuju težinu i istovremeno povećavaju strukturalni integritet ovog 2,5-smernog band pass zvučnika. 0va tehnika donosi savršenu zvučnu kutiju koja poboljšava performanse uz izuzetnu vrednost za utrošeni novac. Proces oblikovanja AYA zvučnika razvijen je zajedno sa kompanijom sa sedištem u Velikoj Britaniji, koja je najpoznatija po betonskom nameštaju i custom instalacijama. Dizajn: Band pass kućište Kućište: Ojačano stakloplastičnim cementom Port za bas: Frontalni port Zvučnički sklop: Visokofrekventni Rega ZRR Srednjotonac 5" MX-125 Rega Bas zvučnik 7" RR7.8 Rega Impedansa: 6 Ω Osetljivost: 89.5dB Snaga: 110W po kanalu (zavisno o pojačalu) Dimenzije (Š x V x D): 258 x 871 x 215mm (10.2 x 34.3 x 8.5in) Težina (po zvučniku): 14.1 Kg (31.1Ibs)

ProAc K3 is a smaller, more affordable floor-standing loudspeaker model which joins the K6 and K8 in ProAc’s flagship K range. The K3 measurements are only slightly greater than those of the Response D30R at 42 inches high x 13 inches deep x 8 inches wide. K Drivers Featuring the same drive unit technology utilised in the other K models, K3's Kevlar drivers, from which the series derives its name, feature similar benefits to carbon fibre in that it's light and at the same time rigid. The Kevlar cones are made by the same special method as ProAc's carbon fibre coned drive units; the cone is painstakingly produced from a mould by hand, a labour intensive process taking many hours to complete. Great Sound In the past with the exception of the now discontinued Tablette Anniversary, ProAc has only utilised Kevlar for bass and lower midrange reproduction in large floor standing flagship models. Now Kevlar technology is featured in the new mid-bass driver specifically designed for this new addition to the K Series, the K3. Cones manufactured using Kevlar are light, stiff and exhibit a characteristic warmth which is considered superior to carbon fibre together with excellent bass transient and extension qualities. Open Midrange The new K3 mid-bass driver is designed to produce ProAc’s trademark open mid-range quality in a true high-end loudspeaker that incorporates the additional benefits of a phase plug thus improving detail and dispersion. Although Kevlar has proven to be an excellent cone material sonically, the Kevlar ProAc bass drivers require a different porting mechanism in order to realise their full potential. The bass is loaded by an almost invisible vent to produce a wonderfully weighty but exceptionally fast bass response. Ribbon Tweeter ProAc’s proven K Series ribbon tweeter is centrally positioned between two mid-bass drivers and the three drivers seamlessly mated via a high-quality crossover which may be split for optional bi-wiring or bi-amping. The K3 produces a wonderfully clear, open and detailed midrange, reminiscent of electrostatics with a dynamic, extended bass response thereby offering music lovers of all genres a captivating and involving listening experience. Colour Options Like ProAc's other speakers, the K3 is available in black ash, silk white, cherry, oak, walnut and mahogany or for a premium in the ebony and rosewood finishes. - Mode: Floor standing - Nominal Impedance: 4 ohms - Recommended Amps: 10-250W - Frequency Response: 25Hz-30KhZ - Sensitivity: 89dB linear (1w @1m) - Bass/mid: 2x 6.5 Kevlar cone, phase plug - Tweeter: ProAc ribbon/ light diaphragm - Alnico magnet and rear chamber damping - Crossover: Finest components - Circuit board: dedicated dual layer - Cable: Multistrand OFC - Split for optional BiWire/BiAmp - Grille: Acoustically-clear crimplene - Dimensions (HWD): 1073 x 215 X 340mm - Weight: 42kgs, pack per pair: 88Kg

ProAc K3 is a smaller, more affordable floor-standing loudspeaker model which joins the K6 and K8 in ProAc’s flagship K range. The K3 measurements are only slightly greater than those of the Response D30R at 42 inches high x 13 inches deep x 8 inches wide. K Drivers Featuring the same drive unit technology utilised in the other K models, K3's Kevlar drivers, from which the series derives its name, feature similar benefits to carbon fibre in that it's light and at the same time rigid. The Kevlar cones are made by the same special method as ProAc's carbon fibre coned drive units; the cone is painstakingly produced from a mould by hand, a labour intensive process taking many hours to complete. Great Sound In the past with the exception of the now discontinued Tablette Anniversary, ProAc has only utilised Kevlar for bass and lower midrange reproduction in large floor standing flagship models. Now Kevlar technology is featured in the new mid-bass driver specifically designed for this new addition to the K Series, the K3. Cones manufactured using Kevlar are light, stiff and exhibit a characteristic warmth which is considered superior to carbon fibre together with excellent bass transient and extension qualities. Open Midrange The new K3 mid-bass driver is designed to produce ProAc’s trademark open mid-range quality in a true high-end loudspeaker that incorporates the additional benefits of a phase plug thus improving detail and dispersion. Although Kevlar has proven to be an excellent cone material sonically, the Kevlar ProAc bass drivers require a different porting mechanism in order to realise their full potential. The bass is loaded by an almost invisible vent to produce a wonderfully weighty but exceptionally fast bass response. Ribbon Tweeter ProAc’s proven K Series ribbon tweeter is centrally positioned between two mid-bass drivers and the three drivers seamlessly mated via a high-quality crossover which may be split for optional bi-wiring or bi-amping. The K3 produces a wonderfully clear, open and detailed midrange, reminiscent of electrostatics with a dynamic, extended bass response thereby offering music lovers of all genres a captivating and involving listening experience. Colour Options Like ProAc's other speakers, the K3 is available in black ash, silk white, cherry, oak, walnut and mahogany or for a premium in the ebony and rosewood finishes. Mode: Floor standing - Nominal Impedance: 4 ohms - Recommended Amps: 10-250W - Frequency Response: 25Hz-30KhZ - Sensitivity: 89dB linear (1w @1m) - Bass/mid: 2x 6.5 Kevlar cone, phase plug - Tweeter: ProAc ribbon/ light diaphragm - Alnico magnet and rear chamber damping - Crossover: Finest components - Circuit board: dedicated dual layer - Cable: Multistrand OFC - Split for optional BiWire/BiAmp - Grille: Acoustically-clear crimplene - Dimensions (HWD): 1073 x 215 X 340mm - Weight: 42kgs, pack per pair: 88Kg

Product Description The Studio SM100 is ProAc's exciting replacement to the Studio 100 which was produced for over 20 years until 2013. Made for both domestic and studio use, the studio 100 quickly became a favourite as a near field monitor. Enhancement For the last 2 years Stewart Tyler has been working on a new speaker named the ProAc SM100 and all parameters have been improved for both studio and domestic use. It now features a new bass driver with a new surround and dust cap along with a brand new 1 inch domed tweeter and crossover network, however the cabinet remains the same. Driver Details The bass driver looks similar but has a new rubber surround for longevity and power handling and now comes in a ProAc basket. The tweeter is a new ProAc design with a 1 inch silk dome and a front plate to lower distortion, the dome has a new roll surround. Finishes The SM100 also features a new crossover, the overall sound quality is similar to the studio 100 but slightly smoother sound makes it ideal for long listening sessions. Tech Specs Performance - Nominal Impedance: 8 Ohms - Recommended Amp: 30-150W - Freq Response: 35Hz to 30KHz - Sensitivity: 88dB Linear (1w @1m) Driver - Bass: 6.5" treated cone Mid/Bass - Features: New rubber surround + Basket - Tweeter: 1" Soft silk done Crossover - Cable: Multi-strand oxygen free copper - Optional: bi-wiring or bi-amping General - Grille: Acoustically transparent crimplene - Dimensions (HWD): 406mm x 203 x 254mm - Weight: 12Kg each unpacked

A smarter approach to bass DB1D's 2000 Watt amplifier and 12-in drivers are controlled by intelligent processing for best-in-class bass delivery. Nimble and powerful Solid, dramatic bass is delivered through the rigidity and lightness of the uniquely-shaped, variable thickness Aerofoil™ cone. A question of balance The back-to-back (opposed) drivers cancel out cabinet resonances, ensuring all that power is used to create room-shaking bass, not wasted vibrations. The digital advantage Digital amplification is cool-running and energy efficient, even when working hard, while Dynamic EQ and Room EQ ensure a precise sound for music and movies. Take control By placing control in the palm of your hand, our subwoofer app not only makes our DB Series subwoofers a snap to set up, it also helps maximise your sound quality. Bowers & Wilkins releases its most powerful subwoofer ever. Robb Report - John Lyon Size & weight Dimensions Height: 460mm (18.1 in) Width: 429mm (16.9 in) Depth: 410mm (16.1 in) Net weight 43kg Technical details Technical features 2000w Class D Hypex amplifier 2 x 300mm (12 in) Aerofoil-cone drive units in a balanced configuration Digital preamplifier with Dynamic EQ App-based set-up and BT-LE control Description DB Series Subwoofer Drive units 2 x 300mm (12 in) Aerofoil-cone drive units in a balanced configuration Frequency range -6dB at 8.5Hz - 500Hz Frequency response 10Hz - 350 Hz -3dB (centered on level at 100Hz) Max power output 2000W Inputs 2 x XLR 2 x RCA 2 x 3.5mm 12V trigger RS-232 - 9-pin D connector

At the centre of it all The centre-channel speaker is arguably the most important in home theatre – and the HTM81 D4 has an enviable array of advanced technologies to reinforce that point, including Solid Body tweeter-on-top, a decoupled Continuum™ Cone midrange drive unit and twin 200mm (8-in) Aerofoil™ bass cones. Aerofoil bass cone Our Aerofoil bass cone technology remains an outstanding solution to the conundrum of combining low mass and high stiffness in bass cones, thanks to its carbon-fibre skin and variable-profile foam core. Now, we have added the foam Anti-Resonance Plug for lower distortion and even cleaner bass. Diamond dome tweeter One of our most significant accomplishments over the past two decades, the ultra-stiff, supremely accurate Diamond dome tweeter is the perfect combination of low mass, exceptional stiffness and outstanding accuracy. 15 years after we introduced it, we haven’t found a better tweeter dome technology. Aluminium bass pods HTM81 D4 mounts two Aerofoil bass cones in twin solid aluminium bass pods, each of which is clamped into an aluminium plate fixed to the stiffest part of its curved cabinet. Formed as single pieces of metal, these stiff structures provide the perfect mechanical location for those powerful bass cones. The science of sound Innovation is at the heart of everything we do. We question, we examine, we understand and then we evolve. We use computer modelling to explore and reimagine every aspect of loudspeaker design. Size & weight Dimensions Height: 334mm (13.1 in) Width: 847mm (33.3 in) Depth: 371mm (14.6 in) Net weight 32.20kg (71 lb) Technical details Technical features Diamond tweeter Solid body Tweeter-on-Top Continuum™ cone FST Anti-Resonance plug Biomimetic Suspension Matrix™ Aerofoil™ cone bass units Flowport Description 3-way vented-box system Drive units 1x ø25mm (1in) Diamond dome high-frequency 1x ø150mm (6in) Continuum cone FST midrange 2x ø200mm (8in) Aerofoil cone bass units Frequency range 20Hz to 35kHz Frequency response 28Hz to 28kHz (+/-3dB from reference axis) Sensitivity 90dB (on axis at 2.83Vrms at 1m) Harmonic distortion 2nd and 3rd harmonics (90dB,1m on axis) <1% 80Hz – 20kHz <0.3% 100Hz – 20kHz Nominal impedance 8Ω (minimum 3.0Ω) Recommended amplifier power 50W – 500W into 8Ω on unclipped programme Max recommended cable impedance 0.1Ω

Jaw-Dropping Bass Jaw-dropping bass extension and output with pinpoint control and accuracy, the SVS PB-4000 combines seismic power and fathomless low frequency extension you can feel with refinement and musicality that suspends your sense of disbelief. With trickle down technology from the 16-Ultra Series, named top subwoofers in the world by nearly every audio publication and industry group in 2017, the PB-4000 crushes expectations and delivers a level of unrivaled subwoofer performance only available from SVS. Sledge Amplifier Massive output, sophisticated DPS, Advanced Power Management, rated conservatively at 1,200 watts RMS, and 4,000+ watts peak power, the PB-4000 Sledge STA-1200D amplifier uses an efficient Class D design combined with fully discrete MOSFET output and a sophisticated Analog Devices DSP engine. The result is a level of effortless power and advanced processing not available from any other powered subwoofer manufacturer. Smartphone App Groundbreaking smartphone app works with Apple iOS® and Android® devices to unleash the full depth, force and nuance of the PB4000 powered subwoofer by controlling all DSP functions including: volume, parametric EQ, low pass filter, phase, polarity, room gain, port tuning, custom presets and system settings. Brand SVS Speaker Type Active/Powered Subwoofer Frequency Response 13 Hz - 200 Hz Power 4000 Watts Woofer Bass Driver Size (mm) 343 mm Item Sold As Single Subwoofer Size 13.5-Inch Warranty 2 yrs. Product Dimension (H×W×D) 595 × 520 × 763 mm Product Weight 69.5 Kg

Since 1973, The Reference has continually set the benchmark for loudspeakers and sound reproduction. Pioneering the use of digital technologies to achieve the highest audio accuracy, every pair can be matched within 0.5dB to the laboratory-maintained reference standard. Since the first Reference speaker, KEF engineers have continued to innovate using what is possible with The Reference. Ground-breaking in its first incarnation, each subsequent iteration of The Reference has added to the world’s knowledge of the science of acoustics. Designed, engineered and handcrafted in UK Since 1961, we have been creating remarkable award-winning loudspeakers at our UK home in Maidstone, Kent. As our flagship HiFi speakers, The Reference is still being designed, engineered, and handcrafted in Maidstone today. The one standmount model in the Reference series could be the only loudspeaker you ever need. A three-way model boasting KEF’s 12th generation Uni-Q® driver array with MAT™, Reference 1 Meta is capable of delivering expansive, high-performance sound that goes way beyond what its relatively compact size would suggest was possible. Now with Metamaterial Absorption Technology The Reference has continually set the benchmark for loudspeakers since its launch in 1973. The perfect reproduction of recorded sound is what The Reference has always stood for. Pioneering the use of digital technologies to achieve the highest audio accuracy, every pair of The Reference series can be matched within half a decibel to the laboratory-maintained reference standard. Exact pair matching delivers perfect stereo reproduction, so these revolutionary speakers won acclaim for the superior acoustic precision. Hence the method became the name: The Reference. Since the first generation, The Reference has been continuously enhanced by new innovations and technological developments. In the latest evolution, The Reference incorporates our latest innovation: Metamaterial Absorption Technology1(MAT™) and continues to be the supreme expression of KEF’s philosophy, where advanced engineering meets inspired design. The Reference are loudspeakers for serious audiophiles who aspire to the perfect enjoyment of music and movies. Whether used in a traditional two-channel HiFi or a multi-channel home theatre, listeners will be able to experience the realistic, immersive sound with breath-taking dynamics, and levels of accuracy that reveal details never noticed before. A class apart The Reference range encompasses two three-way floorstanding speakers, a formidable three-way standmount speaker, and two three-way centre speakers that can be used as Left-Centre-Right (LCR)speakers. The Reference combines phenomenal high-fidelity performance with complete multi-channel versatility. And now new technological advances make The Reference range even more impressive. At the heart of TheReference range now sits a bespoke 12th generation Uni-Q with MAT driver array. This new addition truly puts The Reference range in a class of its own. Revolutionary sound absorption with MAT™ A truly revolutionary tool in the KEF acoustic armoury, Metamaterial Absorption Technology (MAT) is a highly complex maze-like structure, where each of the intricate channels efficiently absorbs a specific frequency.When combined, the channels act as an acoustic black hole, absorbing 99% of the unwanted sound that comes from the rear of the tweeter, eliminating the resulting distortion and providing a purer, more natural acoustic performance. A result of joint development with the Acoustic Metamaterials Group, using MAT breaks completely new ground in loudspeaker design, and once again demonstrates KEF’s unrelenting passion for developing new technologies to improve your listening experience. Metamaterials are specially developed structures that use existing materials in such a way that they exhibit new, desirable properties that are simply not found in naturally occurring substances. 12th Generation Uni-Q with MAT™ delivers The 12th generation Uni-Q with MAT in The Reference is a bespoke driver array engineered to deliver pristine performance across this exceptional range of loudspeakers. It’s the result of decades of accumulated in-house knowledge and the application of cutting-edge simulation and analysis tools. The developments are many and all play a part in The Reference’s pristine performance. As a starting point, KEF engineers re-engineered the tweeter gap damper to maximise the space at the back of the tweeter for the new metamaterial absorber. Optimising the cavity shape and strategically placing two rings of porous material effectively tame the resonances and imperfections, thus greatly improving detail and clarity. A new ultra-low distortion midrange motor design uses a copper ring embedded into the motor gap to minimise inductance and variation of inductance with coil position. This lowers the midrange THD and reduces thermal compression, leading to improved efficiency. The Uni-Q driver array is fully decoupled to prevent unwanted vibrations from muddying the sound. A new flexible decoupling chassis is designed to reduce vibration and remove coloration. It ensures that any vibration generated by the mid and high-frequency motor system is not transmitted to the loudspeaker cabinet. A new driver surround is designed to allow longer excursion without causing diffraction and extending the frequency range of the mid-frequency. Plus, the contours of the dome, midrange horn and surround are all computer-optimised to ensure a perfectly smooth transition to the cabinet. KEF’s patented tangerine waveguide technology manages the airflow to recreate the wide, even spread of a natural sound field, dispersing the astonishingly pure high-frequen cy imaging throughout the room. Reference quality bass High and mid-range frequencies are only part of the story though, and The Reference is also blessed with clean, rich, highly articulate bass. That’s because The Reference’s 165mm (6.5 inch) low frequency driver perfectly complements the new 12th generation Uni-Q with MAT driver array. Smart engineering and meticulous attention to design detail enables the bass to blend seamlessly with the immaculate midrange and treble response. The Reference’s bass driver also benefits from a massive, vented magnet assembly, a large aluminium voice coil and an exceptionally light and stiff alloy cone. As a result of all these technologies volume, dynamics and power handling are superb. Engineered to be flexible The speakers in The Reference range are also welcomingly undemanding in terms of positioning, and are easy to fine-tune for your listening area by using KEF’s innovative Flexible Port Technology, which can reduce port resonance. There are two options of port tubes, allowing users to modify the sound to suit their room. Plus, the flare and profile of each port has been calculated by computational fluid dynamics to avoid turbulent air noise that might colour the sound, another part of the complex jigsaw that is The Reference’s breath-taking performance.

Components The cabinet is made from a heavily damped, thin-wall rigid birch ply carcass, with a 25mm back panel. The bass driver is new, using the same cone technology as the Response D15 but with a revised coil and magnet. Driver Features The tweeter is the same 1" silk dome as used in other ProAc models and the drive units are seamlessly mated with an HQ network designed and built by ProAc. Sound quality from the D2 is one of extreme transparency; a lush and potent bass response and a silky detailed high frequency. The D2 also have a huge sound stage with pinpoint imagery. The speakers are designed to sit on high mass stands from 18" high depending on your seating position. Tech Specs Performance Nominal Impedance: 8 ohms Recommended Amp: 30-150W Freq Response: 30hz-30Khz Sensitivity: 88.5db linear 1W @1M Driver Bass: New 165mm ProAc unit Magnet: Excel Magnet system Bass Cone: glass fibre weave Plug: copper phase plug Tweeter: 1" silk dome Air cooled: + inner damping Crossover HQ network: finest components Optional: bi-wiring/bi-amping Using: oxygen cable General Mode: Stand mount rigid high mass Grill: Acoustic transparent crimplene Dimensions (HWD): 430 x 203 x 260mm Weight: 24 lbs (11kg) /cabinet