Subwoofer

No. 31REL AcousticsNo.31 is nothing less than a pure reference model, sculpted from the flanks of the remarkable No.32, but using a newly developed 12″ (350mm) all carbon fiber driver. Every facet of No.31 has been comprehensively upgraded and refined from its predecessor. No.31 delivers the classic Reference filter used in No.32, the same dual parametric filters, a driver that handles three times the power to deliver a truly thrilling experience. When Only the Best Will Do (But You’ve Run Out of Room)No.31 exists to satisfy the needs of those who crave the finest yet have space limitations. Whilst some can afford our flagship No.32 model, it is larger and deeper than some rooms can accommodate. How can you best deliver No.32’s sound quality, build quality, and thoughtful features with a more compact footprint? Enter No.31. Perfection RepeatedNo.31 matches No.32’s design stroke for stroke, yet somehow it manages to look more svelte, crouching closer to the floor—almost feline in its grace. The elegant plated handles inset into an ellipse is retained, as is the string grille that permits vast amounts of air to explode into your room without creating noise like cloth grilles can. No.31 features the curvilinear radius to the sidewalls that define both its performance and its character. But the reduction in visual and actual three-dimensional physical mass is remarkable. No.31: when the best must be delivered in a smaller space. Arrayed for BattleNo.31 permits the same vertically stacked line array as the ultimate No.32. It delivers transformative performance that no competitor has been able to. For those who have been seeking the ultimate musical and theatre experience, Line Arrays unlock the final dimension of system reproduction. Audiophiles have chased three-dimensional sound for years, yet they have missed the simple fact that the height—not the depth—of image is the missing link. By creating products that are designed to be stacked 3 (or in exceptionally tall rooms, 5) units high while retaining individual crossover and gain control of each subwoofer in the array, REL has created a masterpiece that finally delivers what the most experienced audiophiles have been chasing for the past 40 years. Amplified PerfectionNo.32’s NextGen 7 Class D 1,000 watt amplifier also lives inside No.31, only limited to 900 watts to ensure the perfect complement to the 12” bass engine within No.31. This allows the maximum dynamics to be delivered while ensuring a long, cheerful life for both components. Here too, the LimitLess Limiter,™ which permits the amplifier to tiptoe right up to its limit without audible compression is part of the magic, conveys a rhythmically effortless quality. Also, its dual parametric filters allow precise micro-tuning; the deepest bass is slightly reinforced, while the upper ranges of bass can be gently trimmed to ensure a brilliantly rendered transition from bass to the main speaker. The electronic design of the reference range is itself artistry. Drive ThisThe incredible excursion of the 12” pure carbon fibre driver allows it to play as loud as its larger stablemate. Yet, the No.31 possesses the tactility, nimbleness, and attack that only the greatest subwoofers have ever been able to deliver. Also, its sonic signature works in modestly-scaled rooms and with a vast range of fine speakers. The driver is accelerated by a specially wound 3” voice coil driven by a 13-pound magnetic structure; even near its limits, the voice coil remains solidly inside the gap. It is this visceral power, coupled with great delicacy and nuance, that is No.31’s signature. Total ControlTake control of your No.31 by grasping the REL Reference Remote Control. Immediately, you will be struck by the perfect fit in your palm, the result of careful thought and numerous generations of trial-and-error fittings during prototype development. The second reaction to it is the awareness of its mass, which conveys its quality, permanence, and immutability. It tells you, “I am a thing of substance, of quality. Pay attention, what you do next matters.” If you have owned a REL in the past (and fully 90% of Rel Reference owners are), all the familiar controls are right at hand, exactly where you’d want them. High (or low if using active speakers) level gain sits comfortably to the right side, the crossover rests in the middle, and .1/LFE gain is off to the left.Below are three lovely metal toggle switches handle the critical setup functions. The remote’s on/off switch is at the bottom. It is both as out of the way as possible and remains on once turned on and in use during setup without being accidentally turned off. In the middle sits the phase control. This is used only initially to determine the correct 0 or 180 degrees of phase. Additionally, the top access to the Dual Parametric EQ-marked with A and B—permits the flattest, deepest bass and, at the other end of the bass frequencies, the fine-tuning of crossover behavior. This gives you the perfect blending of subwoofer to main speakers and any vestiges of room-generated boom and resonance can be gently trimmed away.REL’s Reference Remote reminds you of the perfect butler—always immaculate, indispensable when called upon, then quietly set aside until a future time when perhaps additions or further improvements to one’s system further require its services.

No. 32REL AcousticsNo.32 enjoys the rarefied position of elevating our Reference range to an even higher orbit. No.32 retains the exquisite beauty of our curvilinear reference cabinets, an updated 15″ (380mm) true carbon fibre driver and our ultra-reliable NextGen 7 Class D 1,000 watt amp outfitted with thin film capacitors, higher gain and superior limiting.The net result is a flagship model that stretched the edge of the art further with superior dynamics, richer tonal color, and a freer, more expressive character that opens up the midranges and highs in an unprecedented manner. When Nothing but the Finest Will Do Edge Of The Art DesignNo.32 represents the sum of our efforts, research, and knowledge gained over the past three decades as a leader in audio and subwoofers. Nothing we have built competes with the speed, agility, absence of texture, and vivid dynamic contrasts delivered by No.32. It represents the pinnacle of REL’s considerable experience and is our standard for future innovation. A remarkable sonic achievement, it transcends its illustrious forebear, which was named Product of the Decade just a few years ago. It is 1,000 watts, has a 15”(380 mm) pure carbon fibre driver, and has exquisite cabinetry requiring three weeks of labour to complete. However, each of these features only hints at what it takes to reside at the top of REL’s offerings, and No.32 is poised to be a design for the ages. Beautiful Form Follows Functional PerfectionIt is often said that form follows function. If that is true, what a lovely function we are following. The cabinet traces a curvilinear path established over a decade ago on the original Gibraltar. Here, the top surface tumbles down at the rear corners – a difficult treatment to execute, but one that produces a uniquely beautiful effect.Triple-plated steel handles are inset into ellipses that allow for a secure grip, which is necessary when lifting an object over 200 pounds. Inside, the rear backing plate is well over half an inch thick and contoured to follow the inner surface, yielding a massively strong structure.No.32’s new badge treatment combines the materials that appear most frequently within its design; the carbon fibre used throughout the driver is inset within a polished, cast alloy basket that is finished in 3 layers of plating to achieve a jewel-like sparkle. The overall design speaks to the remarkable efforts that went into ensuring No.32 is as striking visually as it is technically. Arrayed For BattleNo.32 permits the same vertically stacked line array as the ultimate No.31. It delivers transformative performance that no competitor has been able to. For those who have been seeking the ultimate musical and theatre experience, Line Arrays unlock the final dimension of system reproduction. Audiophiles have chased three-dimensional sound for years, yet they have missed the simple fact that the height—not the depth—of image is the missing link. By creating products that are designed to be stacked 3 (or in exceptionally tall rooms, 5) units high while retaining individual crossover and gain control of each subwoofer in the array, REL has created a masterpiece that finally delivers what the most experienced audiophiles have been chasing for the past 40 years. The Utterly Reliable BeastNo.32’s NextGen 7 Class D 1,000 watt amplifier was also used in its predecessor for over seven years. Thousands of these amplifiers are in use all over the world; they are a paragon of reliability. Its implementation in No.32 combines a new limiter with a much wider envelope to permit the widest dynamic swings possible. Also, No.32’s dual parametric EQs allow for robust and flat response in the lowest ranges, extending below 20 Hz. When its second EQ is set to frequencies above the crossover point, No.32 meshes perfectly with the main speakers while simultaneously reducing room-based resonances. Drive OnAs with all RELs, No. 32’s heart and soul is its 15” (380mm) driver. The driver’s cone is constructed entirely of carbon fibre. Additionally, a carbon fibre centre cap is overlaid on the primary cone surface. This cone design results in a far stiffer driver that possesses superior self-damping qualities, removing even minor resonances that can obscure detail retrieval whilst keeping moving mass to an absolute minimum. No.32’s driver suspension permits a full 4” (100mm) of travel fore and aft, an enormous amount of travel for such a large driver. These are some of the secrets to its performance. Transparency, allied to tremendous dynamics, is the result. A Remote Like No OtherTake control of your No.32 by grasping the REL Reference Remote Control. Immediately, you will be struck by the perfect fit in your palm, the result of careful thought and numerous generations of trial-and-error fittings during prototype development. The second reaction to it is the awareness of its mass, which conveys its quality, permanence, and immutability. It tells you, “I am a thing of substance, of quality. Pay attention, what you do next matters.” If you have owned a REL in the past (and fully 90% of Rel Reference owners are), all the familiar controls are right at hand, exactly where you’d want them. High (or low if using active speakers) level gain sits comfortably to the right side, the crossover rests in the middle, and .1/LFE gain is off to the left.Below are three lovely metal toggle switches handle the critical setup functions. The remote’s on/off switch is at the bottom. It is both as out of the way as possible and remains on once turned on and in use during setup without being accidentally turned off. In the middle sits the phase control. This is used only initially to determine the correct 0 or 180 degrees of phase. Additionally, the top access to the Dual Parametric EQ-marked with A and B—permits the flattest, deepest bass and, at the other end of the bass frequencies, the fine-tuning of crossover behavior. This gives you the perfect blending of subwoofer to main speakers and any vestiges of room-generated boom and resonance can be gently trimmed away.REL’s Reference Remote reminds you of the perfect butler—always immaculate, indispensable when called upon, then quietly set aside until a future time when perhaps additions or further improvements to one’s system further require its services.

The Premium SUB 15 is a high-performance subwoofer designed for high-end immersive systems. Featuring a 380 mm driver and 650 W Class D amplification, it delivers spectacular powerful and deep bass.The flagship of the Premium series, the Premium SUB 15 is designed to deliver an extraordinary sound experience. Equipped with a massive 15-inch (380 mm) fiberglass-cone driver, it uses 650 W Class D amplification to produce extremely deep and controlled bass.Perfectly suited for demanding environments such as large rooms or ultra high-end home theater setups, the SUB 15 maintains flawless performance even at high volume.Its front laminar port design with internal baffle minimizes turbulence, resulting in dense, smooth, and distortion-free bass. It retains all the adjustments of the range for perfect integration.Also discover the other models in the Premium Sub rangeEvery setup deserves bass that matches its ambition. Whether you need a compact subwoofer for a small space, a balanced solution for your living room, or total immersion in a large dedicated room, the Premium Sub range offers three models perfectly tailored to your needs: Premium SUB 10, Premium SUB 12, and Premium SUB 15.

The Premium SUB 12 is the heart of the Premium subwoofer range, designed for demanding audiophiles. Featuring a 300 mm driver and 500 W Class D amplification, it delivers powerful and controlled performance for medium to large rooms.Designed as the flagship of the range, the Premium SUB 12 meets the needs of users seeking the ideal combination of power, depth, and precision. Its 12-inch (300 mm) fiberglass cone driver is powered by a 500 W Class D amplifier, delivering an extended and uncompromising performance.The internal structure features the range’s signature laminar design with internal baffle, minimizing unwanted noise generated by the port. The built-in DSP boosts the lowest frequencies (+3 dB @ 28 Hz) while maintaining perfect linearity.Its fine tuning (phase, crossover, LFE) ensures seamless integration in any environment, whether for a home theater setup or an ambitious stereo system.Also discover the other models in the Premium Sub rangeEvery setup deserves bass that lives up to expectations. Whether you need a compact subwoofer for a small space, a balanced solution for your living room, or total immersion in a large dedicated room, the Premium Sub range offers three models perfectly suited to your needs: Premium SUB 10, Premium SUB 12, and Premium SUB 15.

The Premium SUB 10 is a compact and powerful subwoofer, ideal for medium-sized rooms. Equipped with a 250 mm fiberglass driver and a 300 W Class D amplifier, it delivers tight and precise bass, perfect for both hi-fi and home theater setups.The Premium SUB 10 embodies the perfect balance between compactness and performance. Designed for medium-sized home spaces, it features a 10-inch (250 mm) fiberglass driver, ensuring rigidity and responsiveness. The Class D amplification delivers 300 W of power, enabling a dynamic and controlled low-frequency response.Its front-ported bass-reflex design, enhanced with an internal baffle, promotes laminar airflow to reduce distortion. The built-in DSP provides a +3 dB boost at 30 Hz, reinforcing low frequencies without excess.Thanks to its precise adjustments (phase, crossover frequency, LFE), it integrates seamlessly into any system, whether stereo or multichannel.

Its removable base allows you to insert a dense foam cylinder into the port to get closer to a closed mode.In bass-reflex mode, you gain the impact of the low register around the 40 Hz centre frequency for your home theatre system.In closed mode, the level of impact is reduced for the benefit of better exploration of the very low frequencies below 30 Hz, which is favourable for a Hi-Fi configuration.

Its removable base allows you to insert a dense foam cylinder into the port to get closer to a closed mode.In bass-reflex mode, you gain the impact of the low register around the 40 Hz centre frequency for your home theatre system.In closed mode, the level of impact is reduced for the benefit of better exploration of the very low frequencies below 30 Hz, which is favourable for a Hi-Fi configuration.

Its removable base allows you to insert a dense foam cylinder into the port to get closer to a closed mode.In bass-reflex mode, you gain the impact of the low register around the 40 Hz centre frequency for your home theatre system.In closed mode, the level of impact is reduced for the benefit of better exploration of the very low frequencies below 30 Hz, which is favourable for a Hi-Fi configuration.

TechnologyDriven with AuthorityDriver development lies at the core of every REL. For 212 Black Label, both active and passive elements were re-engineered to handle the massive outputs made possible by its uprated 1,000-watt amplifier. Dual 12" CarbonAlloy™ active drivers, fitted with lightweight carbon-fibre center caps, release more energy on every stroke, yielding speed and control at levels unheard of in earlier designs. To match, the dual passive radiators were redesigned with longer suspensions and greater excursion, allowing the system to traverse massive distances without strain. The result is a subwoofer that plays some 40% louder than its predecessor. For the engineers, the real triumph was refining every nuanced aspect of performance, made clear each time ultra-dynamic movie scenes or sprawling, complex pieces of music flow effortlessly without strain.Outrageousness AmplifiedLike its Carbon Special Black Label stablemate, 212 Black Label is powered by a newly developed 1,000-watt hybrid amplifier that marries the current delivery of high-current Class A/B monoblocks with the efficiency of a Linear Class D output stage. This best-of-both-worlds design delivers immense dynamic power while consuming just 40 watts at idle — no more than a handful of night lights. Peaks of over 1,200 watts can be sustained for extended periods, producing explosive authority without strain. The result is an amplifier that sounds urgent, driven, and unshakably powerful, yet refined enough to underpin reference-grade stereo systems and anchor the largest theaters with complete composure.Analog Filtered to PerfectionAll REL input filters are 100% analog — among the fastest ever offered in a subwoofer. We choose analog because it is the only way to achieve natural sound. At the center is our famous High Level Input, which connects directly to the speaker outputs of your main amplifier. This does not draw power; instead, it carries the complete sonic signature of your system, allowing REL to blend seamlessly with your speakers, a trait reviewers have celebrated for decades. And for systems where High Level isn’t possible, our low-level input employs the very same filter circuit, available via both RCA and XLR connections, delivering the speed, naturalness, and integration REL is known for. For theatre and dual-use systems, REL allows High Level and .1/LFE to be run together, so music gains natural integration, while movie soundtracks deliver the full impact intended by the mix.Features1,000-watt Linear Class D AmplifierDual 12" CarbonAlloy™ Active Drivers with Dual 12” Passive RadiatorsExtraordinary Scale and Dynamics, Approaching Line Array PerformanceStereo Pairs and Large-Scale Theater IntegrationOptional Premium Wood Grille Available. As a natural wood material, grain and color variations are expected and unique to each grille.

Black Label Performance, Medium Chassis FormCarbon Special Black Label elevates the medium chassis to its highest form. At its heart lies a 12" all-carbon fibre driver, closely related to the design used in our No.31 Reference, powered by a 900-watt amplifier and housed in an expanded cabinet that frees the carbon driver to deliver greater scale and authority. The result is bass that combines breathtaking power, speed, and tonal nuance.Each Carbon Special Black Label includes a premium wood grille that enhances both beauty and airflow, underscoring the model’s dual commitment to form and function. On its own, as a stereo pair, or in towering Line Arrays, it delivers Reference-inspired authority reserved for those who demand the very best of Serie S. Black Label models represent the most advanced expressions of Serie S, built with tighter tolerances, upgraded components, and unique finishes.Achingly BeautifulCarbon Special Black Label pulls together the finest elements of Serie S design. Its cabinet proportions, inspired from our Reference line, achieve a natural sense of scale. Subtle black crown inlays along the sidewalls and curved stainless-steel handles recessed into elliptical returns underscore its unique position within the range. Beneath each rail, knurled billet cylinders permit precise leveling, while thick internal aluminum slabs anchor the handles for safe stacking in Line Arrays. Each unit also includes a premium wood grille that adds warmth while enhancing airflow for greater dynamics. A design where beauty and performance converge.Driven to PerfectionAt REL, development begins with the driver, the foundation of sonic character. For Carbon Special Black Label, we designed a 12" all-carbon fibre unit capable of handling three times the peak power of its predecessor. A newly engineered suspension allows the cone to travel over 60mm front to back, delivering extraordinary dynamics with complete control. The result is bass that is effortless, powerful, and fluid, extending lower with greater authority. Whether reproducing the subtle textures of music at concert levels or the impact of modern theater soundtracks, this latest generation driver transforms performance across the entire medium-chassis class.Amped UpCarbon Special Black Label is powered by a 900-watt hybrid amplifier that combines the rich current delivery of Class A/B monoblocks with the efficiency of a Class D output stage. A 15-pound power transformer and extensive heatsinking form the foundation for high-current performance, adding to the model’s weight and commanding authority. This design sustains peaks of 1,250 watts with ease, delivering louder, cleaner, and more controlled bass than any previous medium-chassis REL. The result is an amplifier that unites raw power with the composure and finesse that define Black Label.Analog Filtered to Perfection:We choose analog because it is the only way to achieve truly natural sound. All REL input filters are 100% analog—among the fastest ever offered in a subwoofer. At the core is our renowned High Level Input, which connects directly to the speaker outputs of your main amplifier. This doesn’t draw power; instead, it carries the full sonic signature of your system, allowing REL to blend seamlessly with your speakers—a quality reviewers have praised for decades.For systems where High Level isn’t possible, our low-level input uses the same analog filter circuit, available via both RCA and XLR connections, to deliver the speed, naturalness, and integration REL is known for. And in theater or dual-use systems, REL uniquely allows High Level and .1/LFE to run together—so music benefits from natural integration, while movies deliver the full impact intended by the mix.Serie S Line ArrayREL’s Line Arrays are renowned for producing sound staging and dynamics that rival the world’s finest systems. Designed to grow in pairs, a Line Array can begin with a simple stereo pair, expand with a second, and ultimately rise to three units per channel, delivering floor-to-ceiling authority and scale.Carbon Special Black Label was crafted to support the step-by-step build of a Line Array system. It comes supplied with precision mechanical couplers that securely lock the top and middle units to the anchor REL below, ensuring stability and optimal performance. Proven at international shows and in private listening rooms, Carbon Special Black Label Line Arrays achieve true state-of-the-art performance—even when paired with stand-mounted monitors or compact floor standers in medium-sized rooms. Imagine the presence and impact of a half-million-dollar system, brought to life in a modest space.Wired For Sound…WirelesslySometimes the best wire is no wire. Quality cables are a given in high-end audio systems, but there are occasions where it is impractical, unsafe, or unsightly to drape a cable across the room. REL delivers the ultimate solution with Airship Direct™, our optional wireless system that transmits wide-bandwidth, compound signals, carrying both High Level and .1/LFE simultaneously. Even with the immense scale and output of Carbon Special Black Label, Airship Direct™ preserves the speed, transparency, and authority that define REL. It allows seamless transitions between music and movies without ever touching the controls, all from a single module that plugs neatly into the rear panel and stays invisible in your room. Simple, direct, uncompromised: Airship Direct™.

Stunning Design Meets Raw PowerS/850 stands as the benchmark of the Serie S line, with its design innovations shaping and elevating its three stablemates. Every improvement is sweeping and comprehensive, ensuring the entire Serie S family benefits from the advancements pioneered in the S/850.The results are spectacular: it delivers incredible attack and output beyond even the former Carbon Special at the very limits of performance, yet with the precision, quietness, and clarity that produce true dynamic range. Lightning-fast transients, deep effortless bass, and tonal richness combine to deliver nuance that elevates both music and theater.Designed to be PerfectThe S/850 cabinet is longer, lower, wider, and deeper—proportions that give it a naturally dynamic presence. Subtle design details refine its look and feel: clean creases that catch the light, warm silver-gold badges with a titanium-like finish, and stainless-steel handles recessed into graceful ellipses. Beneath each front rail, precision-milled billet cylinders provide exact leveling, while thick internal aluminum slabs secure the handles for safe stacking in Line Arrays. Designed to complement modern interiors, the S/850 also offers an optional Premium Wood Grille, adding warmth and individuality.Features850-watt Linear Class D Amplifier12" CarbonAlloy™ Active Driver with 12" Long-Stroke Passive RadiatorMusic & Theater Systems, Medium-to-Large RoomsStereo Pairs & Line ArraysOptional Premium Wood Grille Available. As a natural wood material, grain and color variations are expected and unique to each grille

Designed for ExcellenceThe added internal volume gives drivers greater freedom and amplifiers improved efficiency, while updated internal bracing keeps cabinet resonances firmly under control. Subtler touches also make a difference, badges that disappear into the grille cloth, silver accents that rest quietly within the cabinet plane, and model numbers etched discreetly into the front rails, visible only when stacked in a Line Array.Drive Faster. Drive BetterThe new S/550 10” high-amplitude driver has been completely rebuilt—only the cast frame remains. Its CarbonAlloy™ cone, capped with pure carbon fiber, sharpens attack and smooths decay, letting notes fade naturally into silence. A redesigned suspension allows greater travel, easily handling the amplifier’s added power.Amplified ExcellenceRated at 550-watts, the Pure Class D amplifier outpaces its predecessor – but numbers tell only part of the story. In our lab, this unit delivers 600-watts continuous with no strain for extended periods of time, not simply for an instant. Its crest power is fully 50% more than its predecessor. It delivers the fast, truly deep bass Serie S is known for, performance that defies spec sheets. Premium polypropylene capacitors, like those used in our Reference models, were installed in our input filters resulting in a more open soundstage with greater transparency. We know from extensive experience that this unit is a rugged and reliable amplifier. As always, fed by our second generation PerfectFilter™, the deep bass is utterly remarkable for a subwoofer whose footprint is so tidy.Analog Filtered to PerfectionWe choose analog because it is the only way to achieve truly natural sound. All REL input filters are 100% analog—among the fastest ever offered in a subwoofer. At the core is our renowned High Level Input, which connects directly to the speaker outputs of your main amplifier. This doesn’t draw power; instead, it carries the full sonic signature of your system, allowing REL to blend seamlessly with your speakers—a quality reviewers have praised for decades.For systems where High Level isn’t possible, our low-level input uses the same analog filter circuit, available via both RCA and XLR connections, to deliver the speed, naturalness, and integration REL is known for. And in theater or dual-use systems, REL uniquely allows High Level and .1/LFE to run together—so music benefits from natural integration, while movies deliver the full impact intended by the mix.Wired For Sound…WirelesslySometimes the best wire is no wire. Quality cables are a given in high-end audio systems, but there are occasions where it is impractical, unsafe, or unsightly to drape a cable across the room. REL delivers the ultimate solution with Airship Direct™, our optional wireless system that transmits wide-bandwidth, compound signals, carrying both High Level and .1/LFE simultaneously. Even with the scale and output of S/550, Airship Direct™ preserves the speed, transparency, and authority that define REL. It allows seamless transitions between music and movies without ever touching the controls, all from a single module that plugs neatly into the rear panel and stays invisible in your room. Simple, direct, uncompromised: Airship Direct™.Features550-watt Pure Class D Amplifier10" CarbonAlloy™ Active Driver with 12" Down-Firing Passive RadiatorMusic & Theater Systems, Medium RoomsStereo Pairs & Line ArraysOptional Premium Wood Grille Available. Note: As a natural wood material, grain and color variations are expected and unique to each grille

Designed for ExcellenceThe added internal volume gives drivers greater freedom and amplifiers improved efficiency, while updated internal bracing keeps cabinet resonances firmly under control. Subtler touches also make a difference, badges that disappear into the grille cloth, silver accents that rest quietly within the cabinet plane, and model numbers etched discreetly into the front rails, visible only when stacked in a Line Array.Drive Faster. Drive BetterThe new S/550 10” high-amplitude driver has been completely rebuilt—only the cast frame remains. Its CarbonAlloy™ cone, capped with pure carbon fiber, sharpens attack and smooths decay, letting notes fade naturally into silence. A redesigned suspension allows greater travel, easily handling the amplifier’s added power.Amplified ExcellenceRated at 550-watts, the Pure Class D amplifier outpaces its predecessor – but numbers tell only part of the story. In our lab, this unit delivers 600-watts continuous with no strain for extended periods of time, not simply for an instant. Its crest power is fully 50% more than its predecessor. It delivers the fast, truly deep bass Serie S is known for, performance that defies spec sheets. Premium polypropylene capacitors, like those used in our Reference models, were installed in our input filters resulting in a more open soundstage with greater transparency. We know from extensive experience that this unit is a rugged and reliable amplifier. As always, fed by our second generation PerfectFilter™, the deep bass is utterly remarkable for a subwoofer whose footprint is so tidy.Analog Filtered to PerfectionWe choose analog because it is the only way to achieve truly natural sound. All REL input filters are 100% analog—among the fastest ever offered in a subwoofer. At the core is our renowned High Level Input, which connects directly to the speaker outputs of your main amplifier. This doesn’t draw power; instead, it carries the full sonic signature of your system, allowing REL to blend seamlessly with your speakers—a quality reviewers have praised for decades.For systems where High Level isn’t possible, our low-level input uses the same analog filter circuit, available via both RCA and XLR connections, to deliver the speed, naturalness, and integration REL is known for. And in theater or dual-use systems, REL uniquely allows High Level and .1/LFE to run together—so music benefits from natural integration, while movies deliver the full impact intended by the mix.Wired For Sound…WirelesslySometimes the best wire is no wire. Quality cables are a given in high-end audio systems, but there are occasions where it is impractical, unsafe, or unsightly to drape a cable across the room. REL delivers the ultimate solution with Airship Direct™, our optional wireless system that transmits wide-bandwidth, compound signals, carrying both High Level and .1/LFE simultaneously. Even with the scale and output of S/550, Airship Direct™ preserves the speed, transparency, and authority that define REL. It allows seamless transitions between music and movies without ever touching the controls, all from a single module that plugs neatly into the rear panel and stays invisible in your room. Simple, direct, uncompromised: Airship Direct™.Features550-watt Pure Class D Amplifier10" CarbonAlloy™ Active Driver with 12" Down-Firing Passive RadiatorMusic & Theater Systems, Medium RoomsStereo Pairs & Line ArraysOptional Premium Wood Grille Available. Note: As a natural wood material, grain and color variations are expected and unique to each grille

Airship II elevates REL's reputation for edge of the art wireless connection in the audio industry to new heights. Taking advantage of a new Texas instrument DAC/ADC design, noise on the system drops by 12dB. Yet it is the effect of this that is transformative. Sound arrives clear, crisp, dynamic and possessing richly saturated tonal colours.Offers high level output, low level input, .1/LFE XLR balanced inputs. 1. and high level may run concurrently for REL Theatre Reference performance.For those who want all the performance of models Serie S and Reference but simply cannot use conventional cables, help has arrived. Airship II is a quiet revolution that must be heard to be believed. Utterly brilliant.Designed for No.32, No.31, 212/SX, Carbon Special, S/812 and S/510. Compatible with HT1510.Only the No.32, No.31, 212/SX, Carbon Special, S/812 and S/510 are designed to have the receiver bolt onto the back amplifier panel.

S/812 takes REL’s medium chassis concept to reference-like levels of performance and does so with style, beauty and devastating power. It delivers incredible levels of all ‘round performance for both music and film sound, gives customers a taste of what our reference models offer, and does so at a fraction of the cost.The All New S/812 - Shattering Performance BarriersFor S/812, every aspect of the previous generation’s inner workings were examined without regard to its critical and customer-driven success. We turned a fresh eye to power requirements, driver improvements, and specialty filters, upgrading each to extract all the extra performance possible. All this alongside the cabinet refinements necessary for those upgrades to emerge cleanly. This latest S range is a triumphant development that has exceeded every expectation of our design team.Our requirements were for far stronger deep bass output between 19-35 Hz, vastly improved theatre dynamics, and an even more open and spacious soundfield which benefits both music and film. We turned to our NextGen 5 amplifier, tuned to 800 watts, with huge reserves of power beyond this, added a light film of carbon fibre to the rear of the driver to handle the extra power, and developed two new sets of custom filters to extract the utmost in brute force and spaciousness. Finally, we imbued 812 with the ability to be stacked in 4- or 6-unit line arrays, just like our reference models.Invisible Upgrades to S/812’s Bass Engine - Pure Carbon Fiber BackingS/812 required upgrades to its ContinuousCast™ Alloy Cone to allow it to survive the massive power upgrades. To permit its thin, aluminum cone to survive 800 watts and incredibly long stroke, we added an ultra-lightweight backing of pure carbon fibre, strategically placed over portions of the rear surface of the cone. This produces two benefits; it strengthens and stiffens the cone and also eliminates reversion, wherein the backwave inside the cabinet is now prevented from interfering with the main launch of bass into the room. The result is more accurate and far louder deep bass.There is Nothing Passive About These - Carbon Passive RadiatorOur uniquely tuned passive radiators use special suspensions, now with an additional 30mm of linear travel, to produce performance far beyond conventional subwoofers. Our new SuperProgressive™ passive radiator produces extremely long travel allowing for very loud output while retaining the variable stiffness of its suspension. This allows it to act like a sealed box compact 12” design at low volume and a high output 14” design at its limit.Warning: Power Amplifier on Steroids - 800 watts and CountingAt 800 watts the NextGen 5 amplifier is borrowed from our reference models and rocks huge reservoirs of power and current. The 45% increase in power (previous version was 500 watts) is needed to deliver both the profound output levels needed for modern theatre, as well as to produce the deepest bass in a high end 2-channel system. This increase in power is necessitated by our development on the musical front of an all-new circuit termed PerfectFilter™ that balance both frequency extremes.PerfectFilter performs two seemingly disparate qualities; extending the strong, even response of the extreme low end of bass frequencies while simultaneously opening up air and delicacy in the middle and high frequencies of one’s system. Additionally, we applied customized PureTheatre™ filters to allow S/812 to deliver the most awe-inspiring theatre effects ever offered in a classic REL.Serie S Line Array - Stacked for Ultimate PerformanceIn the real world, bass occurs with width, depth and height. By stacking up to three units per side (stereo or theatre main L-R speakers) the proper perspective and height of sonic events are illuminated. This elevates reproduction from conventional stereo or theatre to a floor-to-ceiling panoramic, full scale perspective of each sonic event. Reviewers are lining up to marvel at the transformation of music and film into the full-scale representation that REL Line Arrays uniquely deliver.

Wilson Sub-10, active 10 inch subwoofer with bass reflex up to 150W RMS and 25-150Hz frequency range. The Wilson SUB-10 can be connected to wide range of AV receivers and will also meet the needs of surround or stereo sound systems.Sturdy MDF enclosure provides excellent low-frequency sound without resonance or vibration from the cabinet Bass Reflex system provides maximum bass response. The use of an amplifier equipped with both an active and passive low-pass filter, significantly increases the flexibility of the SUB-10’s application.

Wilson Sub-10, active 10 inch subwoofer with bass reflex up to 150W RMS and 25-150Hz frequency range. The Wilson SUB-10 can be connected to wide range of AV receivers and will also meet the needs of surround or stereo sound systems.Sturdy MDF enclosure provides excellent low-frequency sound without resonance or vibration from the cabinet Bass Reflex system provides maximum bass response. The use of an amplifier equipped with both an active and passive low-pass filter, significantly increases the flexibility of the SUB-10’s application.

Wilson Sub-9, active 9 inch subwoofer with bass reflex up to 150W RMS and 25-150Hz frequency range. The Wilson SUB-9 can be connected to all stereo amplifiers and AV receivers and is easily customized to meet the needs of your surround or stereo sound system.The MDF enclosure construction provides excellent low-frequency sound without distortion – no unwanted resonance or vibration from the enclosure, and the superior tunnel Bass Reflex system provides maximum bass response.The Wilson SUB-9 has a built-in low-pass filter – so it is recommended that you set the low-frequency cut-off on your amplifier to its maximum value and adjust this parameter from the subwoofer level (crossover knob) for optimal effect.

Wilson Sub-12, active 12 inch subwoofer with bass reflex up to 250W RMS and 40-200Hz frequency range. The Wilson SUB-12 can be connected to wide range of AV receivers and will also meet the needs of surround or stereo sound systems.Τhe SUB-12 is the perfect addition to your home theater to create a complete and immersive sound experience full of deep cinematic bass. Subwoofer is also suitable for stereo systems, where together with speakers it creates a 2.1 system ideal for selected music genres or just for people who like deep and powerful bass also in stereo systems

Wilson Sub-12, active 12 inch subwoofer with bass reflex up to 250W RMS and 40-200Hz frequency range. The Wilson SUB-12 can be connected to wide range of AV receivers and will also meet the needs of surround or stereo sound systems.Τhe SUB-12 is the perfect addition to your home theater to create a complete and immersive sound experience full of deep cinematic bass. Subwoofer is also suitable for stereo systems, where together with speakers it creates a 2.1 system ideal for selected music genres or just for people who like deep and powerful bass also in stereo systems. The Sub-12 HGL differs from the Sub-12 only in its lacquered glossy finish to give it the same uniformity as the other speakers in the series.

Wilson Sub-12, active 12 inch subwoofer with bass reflex up to 250W RMS and 40-200Hz frequency range. The Wilson SUB-12 can be connected to wide range of AV receivers and will also meet the needs of surround or stereo sound systems.Τhe SUB-12 is the perfect addition to your home theater to create a complete and immersive sound experience full of deep cinematic bass. Subwoofer is also suitable for stereo systems, where together with speakers it creates a 2.1 system ideal for selected music genres or just for people who like deep and powerful bass also in stereo systems. The Sub-12 HGL differs from the Sub-12 only in its lacquered glossy finish to give it the same uniformity as the other speakers in the series.

KF92 is a compact, room-friendly subwoofer engineered to deepen every listening experience.Two massive 9-inch drivers in a force-cancelling configuration are powered by an immense 1000 Watts (RMS) of power. Optimised with KEF's Music Integrity Engine™, KF92 delivers astonishing levels of deep and controlled bass.Discover the detail in the deep To reproduce serious bass you need a completely different kind of loudspeaker, one which can cope with huge pressure. KF92 is engineered to blast out huge chunks of lower frequency energy, yet is subtle enough to pick out the delicate details of a double bass. KF92 ensures you don't just feel the air move - you feel the sound move you.Perfect balanceTwo 9-inch drivers are positioned back to back in a force-cancelling design which cancels out the reactive forces which stress conventional subwoofers. This configuration keeps KF92 perfectly balanced so all you'll hear is deep and clean bass at sound pressure levels of upto 110db.Effortless dynamicsKF92's prodigious drivers are optimised with a clever vented design which reduces viscous drag on the movement of the cone, ensuring they can keep up with even the most demanding impulses.Bespoke bassTwo 9-inch KEF transducers were conceived specifically for the KF92. They feature a hybrid aluminium/paper cone and an oversized motor system and voice coil. They offer vanishingly low distortion and precision, so every bass moment is uncovered even when they are working at extremes.Music Integrity Engine™KEF's research into digtal sound processing - Music Integrity Engine - is the brains behind KF92. Intelligent Bass Extension optimises the relationship between the amplifier, drivers and cabinet, while placement-dependant EQ allows for seamless integration into any room.Turn up the powerKF92’s 1000W (RMS) of Class D amplification (500W RMS per driver) creates immense power., delivering incredible levels of control. This improves timing accuracy and dynamic response, producing a more detailed sound closer to that in the studio.More bass, less spaceThe compact, sealed box construction improves flexibility of positioning as well as the speed and clarity of performance. The beautiful low profile heatsink ensures that the hard working electronics are kept in an optimum thermal condition.

The Foundation of MusicBass is the foundation of music. It is the element that makes you feel the rhythm, the groove, and the emotion of a song. Bass can make your heart beat faster, your body move, and your mood change. Whether you listen to rock, pop, hip hop, jazz, or classical music, clean and extended bass adds a new dimension to musical enjoyment and that’s why we’ve developed RS1.Deep, controlled and musical soundNatural extended bassElegant design100 watt Class D amplifierAuto-on/standby featureCompatible with R3S, MR1 and R410Controlled DeliveryThe enjoyment of music is at the core of our designs. RS1 is not about thunderous, overblown bass, but about deep, controlled, and most importantly a musical sound. To achieve this, the enclosure and custom drivers have been optimised and tuned to deliver natural extended bass, that is fast and rhythmic.Driving the system is a powerful 100-watt Class D amplifier. This new generation amplifier keeps firm control of the bass driver at all volume levels with headroom to spare, although soft clipping is built in should the system ever be overloaded to avoid damage. Setup and adjustment is straightforward and with auto-on/standby, RS1 will automatically turn itself on and off as required.Developed Through DemandOur reason for the development of RS1, was due to the demand from customers requesting a companion sub for our award winning MR1 Bluetooth speakers. We also saw that there was a need for a subwoofer with style. Where many subs look unattractive in a domestic environment, the tailored grille and hand-crafted wood panels of RS1 means it fits seamlessly with other furnishings, making it a product that customers will be proud to display in their homes.

The Foundation of MusicBass is the foundation of music. It is the element that makes you feel the rhythm, the groove, and the emotion of a song. Bass can make your heart beat faster, your body move, and your mood change. Whether you listen to rock, pop, hip hop, jazz, or classical music, clean and extended bass adds a new dimension to musical enjoyment and that’s why we’ve developed RS1.Deep, controlled and musical soundNatural extended bassElegant design100 watt Class D amplifierAuto-on/standby featureCompatible with R3S, MR1 and R410Controlled DeliveryThe enjoyment of music is at the core of our designs. RS1 is not about thunderous, overblown bass, but about deep, controlled, and most importantly a musical sound. To achieve this, the enclosure and custom drivers have been optimised and tuned to deliver natural extended bass, that is fast and rhythmic.Driving the system is a powerful 100-watt Class D amplifier. This new generation amplifier keeps firm control of the bass driver at all volume levels with headroom to spare, although soft clipping is built in should the system ever be overloaded to avoid damage. Setup and adjustment is straightforward and with auto-on/standby, RS1 will automatically turn itself on and off as required.Developed Through DemandOur reason for the development of RS1, was due to the demand from customers requesting a companion sub for our award winning MR1 Bluetooth speakers. We also saw that there was a need for a subwoofer with style. Where many subs look unattractive in a domestic environment, the tailored grille and hand-crafted wood panels of RS1 means it fits seamlessly with other furnishings, making it a product that customers will be proud to display in their homes.

Born 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 auto EQ room correction. The benchmark for reference subwoofer experiences has arrived.Breathtaking 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.Whether 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.

Born 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 auto EQ room correction. The benchmark for reference subwoofer experiences has arrived.Breathtaking 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.Whether 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.

Born from three decades of SVS design expertise, PB17-Ultra R|Evolution is the pinnacle or ported 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 auto EQ room correction. The benchmark for reference subwoofer experiences has arrived.Breathtaking low frequencies with unerring accuracy, room-shaking output, and stop-on-a-dime control. The deep, chest-thumping slam of cinematic soundtracks and the delicate nuance of musical bass always rendered truthfully.Whether heard or felt, low frequencies are handled effortlessly without sacrificing sonic fidelity and refinement. With extension to 12 Hz, far below the threshold of human hearing, PB17-Ultra R|Evolution brings sound to life with convincing, visceral, and jaw-dropping impact.

Born from three decades of SVS design expertise, PB17-Ultra R|Evolution is the pinnacle or ported 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 auto EQ room correction. The benchmark for reference subwoofer experiences has arrived.Breathtaking low frequencies with unerring accuracy, room-shaking output, and stop-on-a-dime control. The deep, chest-thumping slam of cinematic soundtracks and the delicate nuance of musical bass always rendered truthfully.Whether heard or felt, low frequencies are handled effortlessly without sacrificing sonic fidelity and refinement. With extension to 12 Hz, far below the threshold of human hearing, PB17-Ultra R|Evolution brings sound to life with convincing, visceral, and jaw-dropping impact.

CINEMA SUB Subwoofer Made in FranceCinema SUB is the ultimate subwoofer for your home cinema installation. Designed to work with the Cinema LCR speaker, it delivers deep bass, enhancing every nuance of sound, even in the largest private cinema rooms up to 2153 sq ft (200m²). Advanced acoustic design, exclusive Focal technologies, customisation and modularity of the installation... With Cinema SUB, transform your movies into an unforgettable immersive experience.COMPLETE SOLUTIONUtopia Cinema products - Cinema LCR and Cinema SUB - have been designed to create a complete and powerful home cinema installation. They can also be combined with the 1000 Series loudspeakers, which feature the same reference technologies such as the "W" cone of the speaker drivers, for total immersion with Utopia signature sound.

Go lowerThe Yamaha MusicCast SUB 100 significantly extends the lower register of your MusicCast audio system, giving your music a deeper, richer sound. This wireless subwoofer is compatible with MusicCast-enabled home theater receivers and speakers. Use them to build a true 5.1 MusicCast surround sound system. Or add the SUB 100 to a pair of MusicCast 20 or MusicCast 50 speakers to make a 2.1 stereo system.Clean, clear bassThe SUB 100 features an 8" woofer driven by a built-in 130-watt amplifier. Its enclosure features Yamaha's Twisted Flare Port, a contoured opening that disperses air turbulence for clean, clear bass. The subwoofer also has Advanced YST II (Yamaha Active Servo Technology II) on board. This technology uses a feedback system between the driver and amplifier to generate greater bass output from a small cabinet.Easy app-based controlUse the free MusicCast Control app to operate your system from your smartphone or tablet. The app can also guide you through the setup process step by step.

THETIS 280 The Thetis 280 subwoofer has a closed cabinet, equipped with an 8.25” driver with half roll suspension. In order to reduce vibrations, the cabinet has been carefully designed with ingeniously placed internal reinforcements.Equipped with a class D amplifier of 150-watt RMS and 250 watt peak power, Thetis 280 produces an amazing sound for such a small enclosure. It also features a remote control and a sound level indicator on the front panel so you can adjust the subwoofer perfectly.

THETIS 280 The Thetis 280 subwoofer has a closed cabinet, equipped with an 8.25” driver with half roll suspension. In order to reduce vibrations, the cabinet has been carefully designed with ingeniously placed internal reinforcements.Equipped with a class D amplifier of 150-watt RMS and 250 watt peak power, Thetis 280 produces an amazing sound for such a small enclosure. It also features a remote control and a sound level indicator on the front panel so you can adjust the subwoofer perfectly.

TALES 340Tales 340 offers a reasonably priced subwoofer with great performance improving your system in terms of punch and dynamics. Its timeless design and its thoughtfulness will facilitate the integration into your living room.This subwoofer is equipped with a 10” driver with half roll suspension and a class D amplifier of 200-watt RMS (350-watt peak power). Easy to use, it is the perfect choice for discovering high fidelity in stereo or to give a breathtaking cinema experience. It also features an automatic standby and crossover frequency settings, which allows you to adjust your subwoofer perfectly. 

TALES 340Tales 340 offers a reasonably priced subwoofer with great performance improving your system in terms of punch and dynamics. Its timeless design and its thoughtfulness will facilitate the integration into your living room.This subwoofer is equipped with a 10” driver with half roll suspension and a class D amplifier of 200-watt RMS (350-watt peak power). Easy to use, it is the perfect choice for discovering high fidelity in stereo or to give a breathtaking cinema experience. It also features an automatic standby and crossover frequency settings, which allows you to adjust your subwoofer perfectly. 

Anthra W15The W15 is the largest subwoofer within the Anthra subwoofer series. It features a 15” (38 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver powered by a Class-D 1,500 Watt amplifier, housed within a comprehensively internally braced, sealed-box cabinet.Engineered to deliver the deepest bass in the largest of spaces, the Anthra W15 subwoofer features a massively powerful 1,500 Watt Class-D amplifier driving a 15” (38cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W15 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 15” (38 cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 1,500 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Anthra W15The W15 is the largest subwoofer within the Anthra subwoofer series. It features a 15” (38 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver powered by a Class-D 1,500 Watt amplifier, housed within a comprehensively internally braced, sealed-box cabinet.Engineered to deliver the deepest bass in the largest of spaces, the Anthra W15 subwoofer features a massively powerful 1,500 Watt Class-D amplifier driving a 15” (38cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W15 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 15” (38 cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 1,500 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Engineered to deliver impressive bass in medium and large spaces, the Anthra W12 subwoofer features a formidable 1,000 Watt Class-D amplifier driving a 12” (30 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W12 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 12” (30cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 1000 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Engineered to deliver impressive bass in medium and large spaces, the Anthra W12 subwoofer features a formidable 1,000 Watt Class-D amplifier driving a 12” (30 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W12 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 12” (30cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 1000 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Engineered to deliver deep, agile bass in small to mid-sized spaces, the Anthra W10 subwoofer features a 500 Watt Class-D amplifier driving a 10” (25 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W10 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 10” (25cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 500 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Engineered to deliver deep, agile bass in small to mid-sized spaces, the Anthra W10 subwoofer features a 500 Watt Class-D amplifier driving a 10” (25 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W10 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.A full-colour LCD display and rotatory dial is located on the back panel, to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.Key Features1 x 10” (25cm) Rigid Surface Technology II (RST II) and ceramic-coated aluminium magnesium (C-CAM) high-excursion driver for super-clean performance1 x 500 Watt Class-D amplifier ensures that the driver is working to its optimum performance level, no matter what the volumeMassive motor assembles and longer round-wound voice coils, which are dual layered and made of copper-coated aluminium wire (CCAW) for precise control at extreme low frequencies2 inch full-colour LCD display screen with rotary dial for menu selection and basic setupRCA inputs (left/right. The left Input is LFE)RCA outputs allows daisy chain of up to 4 Anthra subwoofersXLR inputs for professional installation connectivity optionXLR outputs allows daisy chain of up to four Anthra subwoofersAvailable in Gloss Black and Satin White finishesMaestroUnite Setup for Monitor Audio Anthra Subwoofers allows a user complete bespoke setup. Available to download from the App Store and Google Play.

Pulse-pounding powerDual Sonos-engineered drivers generate deep, dynamic low end. The ported enclosure enhances the bass response and low-frequency output so you feel every beat, roar, and rumble in your chest.Transform your home theater experiencePair Sub 4 with Sonos Arc Ultra, Arc, or Beam for dramatically richer bass, clearer highs, and deeper immersion in all your entertainment.1Bring music to lifeDiscern every subtle detail and enjoy a more spacious soundstage when you pair Sub 4 with Sonos Five, Era 300, or Era 100.1No buzz or rattleThe acoustic architecture creates a force-canceling effect that virtually eliminates distortion.Better sound all aroundSub 4 takes over the lowest frequencies so your paired soundbar or speakers can deliver high and mid frequencies with even greater clarity and precision.Perfectly tuned for the roomTrueplay™ optimizes the sound for the unique acoustics of your space so the bass never sounds harsh, muddy, or flat — even if you place Sub 4 next to the wall or lay it flat and put it under your sofa.Iconic designMade to be seen, heard, and felt. Sub 4 features an elegant sculptural shape and updated matte finish that perfectly matches your paired Sonos soundbar or speaker.Plug and playSimply plug in the power cable and open the Sonos app to quickly add Sub 4 to your system.Place it where you wantSub 4 connects to your system over WiFi, so you can place it where it fits and looks best in the room.

Pulse-pounding powerDual Sonos-engineered drivers generate deep, dynamic low end. The ported enclosure enhances the bass response and low-frequency output so you feel every beat, roar, and rumble in your chest.Transform your home theater experiencePair Sub 4 with Sonos Arc Ultra, Arc, or Beam for dramatically richer bass, clearer highs, and deeper immersion in all your entertainment.1Bring music to lifeDiscern every subtle detail and enjoy a more spacious soundstage when you pair Sub 4 with Sonos Five, Era 300, or Era 100.1No buzz or rattleThe acoustic architecture creates a force-canceling effect that virtually eliminates distortion.Better sound all aroundSub 4 takes over the lowest frequencies so your paired soundbar or speakers can deliver high and mid frequencies with even greater clarity and precision.Perfectly tuned for the roomTrueplay™ optimizes the sound for the unique acoustics of your space so the bass never sounds harsh, muddy, or flat — even if you place Sub 4 next to the wall or lay it flat and put it under your sofa.Iconic designMade to be seen, heard, and felt. Sub 4 features an elegant sculptural shape and updated matte finish that perfectly matches your paired Sonos soundbar or speaker.Plug and playSimply plug in the power cable and open the Sonos app to quickly add Sub 4 to your system.Place it where you wantSub 4 connects to your system over WiFi, so you can place it where it fits and looks best in the room.

15-inch front-firing active subwooferKube 15 MIE, the largest model in the Kube range, is engineered to provide the deepest bass for music and movies, giving you a ground-shaking immersion. Perfectly suited for large rooms, the 15-inch driver and 300W (RMS) Class D amplifier combine to deliver the most visceral bass performance. With Music Integrity Engine®, the Kube 15 MIE is optimised to deliver exceptional depth and dynamics.Seamless eleganceThe sealed cabinet design facilitates optimal placement, while the contemporary design seamlessly blends with the room's decor.Music Integrity Engine® (MIE)KEF‘s proprietary DSP (Digital Signal Processing) algorithms ensure that every component of the subwoofer works in perfect harmony. Features such as iBX Intelligent Bass Extension provides even deeper and precise bass at any listening level.Feel the forceThe Kube features a front-firing long throw driver with a large cone area and high excursion, delivering higher output at lower frequencies. Its efficient and cool-running 300W Class D RMS amplifier further enhances performance.Versatile immersionThe largest model in the Kube range with the highest output, perfect for movies, music, TV and gaming in larger rooms and dedicated home theatres.Effortless wireless integrationThe KW1 enables optimal placement of the Kube without being limited by cables. High-quality wireless transmission ensures the delivery of every nuance and impact from your favourite movies and music.Well connectedKube offers versatile connection options, including KEF SmartConnect and speaker level inputs, making connecting into any system a breeze.3 room position EQ optionsThe intuitive preset options ensure excellent performance from Kube no matter where in the room it is placed.Multiple power modes'Auto wake up' detects audio signals for instant readiness, 'Always on' mode keeps it ready to play instantly, and '12V trigger' provides automatic wake-up.

12-inch front-firing active subwooferKube 12 MIE is designed to deliver rich and powerful bass, creating a heart-pounding rumble for your favourite music and movies. It features a large 12-inch driver and a 300 Watts Class D amplifier. With Music Integrity Engine®, the Kube 12 MIE is optimised to deliver outstanding level of depth and dynamics.Seamless eleganceThe sealed cabinet design facilitates optimal placement, while the contemporary design seamlessly blends with the room's decor.Music Integrity Engine® (MIE)KEF‘s proprietary DSP (Digital Signal Processing) algorithms ensure that every component of the subwoofer works in perfect harmony. Features such as iBX Intelligent Bass Extension provides even deeper and precise bass at any listening level.Feel the forceThe Kube features a front-firing long throw driver with a large cone area and high excursion, delivering higher output at lower frequencies. Its efficient and cool-running 300W Class D RMS amplifier further enhances performance.Versatile immersionThe second large model in the Kube range, perfect for movies, music, TV and gaming in larger rooms and dedicated home theatres.Effortless wireless integrationThe KW1 enables optimal placement of the Kube without being limited by cables. High-quality wireless transmission ensures the delivery of every nuance and impact from your favourite movies and music.

10-inch front-firing active subwooferKube 10 MIE features a sealed cabinet, a 10-inch bass driver, and 300 Watts of power to deliver remarkable bass extension and control. With Music Integrity Engine®, the Kube 10 MIE is optimised to dynamically enhance bass depth and dynamics, unlocking its full potential.Seamless eleganceThe sealed cabinet design facilitates optimal placement, while the contemporary design seamlessly blends with the room's decor.Music Integrity Engine® (MIE)KEF‘s proprietary DSP (Digital Signal Processing) algorithms ensure that every component of the subwoofer works in perfect harmony. Features such as iBX Intelligent Bass Extension provides even deeper and precise bass at any listening level.Feel the forceThe Kube features a front-firing long throw driver with a large cone area and high excursion, delivering higher output at lower frequencies. Its efficient and cool-running 300W Class D RMS amplifier further enhances performance.Versatile immersionThe mid-sized model in the Kube range, offering easy placement and is ideal for elevating your movies, music, TV and gaming experience.Effortless wireless integrationThe KW1 enables optimal placement of the Kube without being limited by cables. High-quality wireless transmission ensures the delivery of every nuance and impact from your favourite movies and music.Well connectedKube offers versatile connection options, including KEF SmartConnect and speaker level inputs, making connecting into any system a breeze.3 room position EQ optionsThe intuitive preset options ensure excellent performance from Kube no matter where in the room it is placed.Multiple power modes'Auto wake up' detects audio signals for instant readiness, 'Always on' mode keeps it ready to play instantly, and '12V trigger' provides automatic wake-up.