{"title":"REL Reference","description":"\u003cp\u003eThe Reference series represents REL's ultimate statement in subwoofer design, built for the most discerning listeners who accept no compromise. These flagship models combine the finest materials, the most advanced engineering, and decades of expertise into instruments that reveal dimensions of music most have never experienced. Hand-assembled in Wales with aerospace-grade components, Reference subwoofers are investment pieces for systems of the highest caliber.\u003c\/p\u003e\u003cp\u003eTwo models define the range: the \u003ca href=\"\/products\/rel-reference-no-31-subwoofer\"\u003eReference No. 31\u003c\/a\u003e delivers extraordinary performance from a single 12-inch carbon fiber driver, while the \u003ca href=\"\/products\/rel-reference-no-32-subwoofer\"\u003eReference No. 32\u003c\/a\u003e doubles down with dual drivers for rooms and systems that demand the absolute best REL has to offer.\u003c\/p\u003e","products":[{"product_id":"rel-reference-no-32-subwoofer","title":"REL Reference No. 32 Subwoofer","description":"\u003cp\u003eThe REL No. 32 is a new reference, a flagship subwoofer designed to be the foundational element for the world's finest audio and theater systems. It is an instrument of uncompromising design, engineered to deliver not just profound bass, but a new dimension of air, space, and three-dimensionality to the entire system. The No. 32 combines a massive 15-inch carbon fibre driver with a prodigiously powerful 1,000-watt amplifier, all housed in an exquisitely finished, acoustically inert cabinet. Designed for seamless integration with reference-grade loudspeakers and capable of being stacked in Reference Line Arrays, the No. 32 delivers effortless, authoritative bass that extends down to an incredible 15Hz, completing the sonic picture with unparalleled speed, texture, and control.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e15” Pure Carbon Fibre Driver:\u003c\/b\u003e A massive, 380mm long-throw driver with an inverted carbon fibre center cap for extreme stiffness and speed over its full 4\" (100mm) of excursion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e1,000W Reference Amplifier:\u003c\/b\u003e A formidable 1,000-watt (RMS) NextGen 7 Class D amplifier provides limitless dynamic headroom and absolute control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReference High Level Input:\u003c\/b\u003e Utilizes REL’s legendary High Level connection with specialized reference-grade filters for a perfect sonic blend with the main speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReference Line Array Capable:\u003c\/b\u003e Purpose-built to be stacked in vertical line arrays of three (or more) units per side for the ultimate in bass reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Parametric Filters:\u003c\/b\u003e A sophisticated EQ system allows for precise in-room tuning to smooth resonances and perfectly integrate the subwoofer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAcoustically Inert Cabinet:\u003c\/b\u003e A new, gently-rounded cabinet form is meticulously braced and finished with 12 coats of hand-rubbed piano black lacquer to eliminate resonance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eThe Heart of Carbon\u003c\/h5\u003e\n\u003cp\u003eThe performance of the No. 32 is anchored by its immense 15-inch (380mm) driver. The cone is crafted entirely from pure carbon fibre, a material prized for its incredible stiffness-to-mass ratio. This allows the driver to be pistonic, fast, and self-damping, all while handling the enormous forces generated by its 4 inches (100mm) of front-to-back travel. This combination of size and speed is what allows the No. 32 to move massive amounts of air with the agility and nuance of a much smaller driver, revealing textures in the deepest bass that are simply unheard in lesser designs.\u003c\/p\u003e\n\u003ch5\u003eLimitless Dynamic Headroom\u003c\/h5\u003e\n\u003cp\u003eTo control its reference-grade driver, the No. 32 employs a true 1,000-watt (RMS) Class D amplifier. This NextGen 7 powerhouse is a brute in a velvet glove, capable of delivering massive, instantaneous current to produce staggering sound pressure levels and explosive dynamics. More importantly, its vast power reserves mean it operates in an effortless state, providing the iron-fisted grip needed to start and stop the 15-inch cone instantly, ensuring that the bass is always perfectly timed and free of overhang or bloat.\u003c\/p\u003e\n\u003ch5\u003eSeamless Sonic Integration\u003c\/h5\u003e\n\u003cp\u003eThe No. 32 features REL’s renowned High Level Input, allowing it to be fed directly from your main amplifier's speaker outputs. This method ensures the No. 32 receives the exact same sonic signature—the gain, the phasing, the soul—as your main speakers, creating a seamless, top-to-bottom sonic tapestry. For this reference application, REL's engineers developed all-new filters that reach deeper and open up the soundstage, while the built-in Dual Parametric EQs allow for meticulous fine-tuning to perfectly match your speakers and eliminate any room-based resonances.\u003c\/p\u003e\n\u003ch5\u003eThe Reference Line Array: Ultimate Performance\u003c\/h5\u003e\n\u003cp\u003eWhile a single No. 32 is a formidable performer, its design anticipates the ultimate in bass reproduction: the Reference Line Array. The cabinet and chassis are specifically engineered to be stacked three (or more) units high per channel. This vertically stacked array transforms the performance, coupling with the room to produce bass with a \"height\" and effortlessness that a single unit cannot. It creates a line source of bass that pressurizes the room more evenly, delivering truly transformative, three-dimensional sound and unlocking the final dimension of your system's capabilities.\u003c\/p\u003e\n\u003ch5\u003eA Cabinet Built Like an Instrument\u003c\/h5\u003e\n\u003cp\u003eA driver and amplifier this powerful require an enclosure of commensurate quality. The No. 32’s cabinet is a new, gently-rounded form designed to diffuse internal standing waves. Internally, it is massively braced and constructed from thick, high-density materials to create an acoustically inert vault. This ensures that the only sound you hear is the pure, powerful output of the driver, not the resonance or coloration of the cabinet itself. Each unit is immaculately finished in 12 coats of hand-rubbed piano black lacquer, a visual statement that matches its sonic prowess.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eType\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eClosed box, front-firing driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eActive Driver\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e15 in. (380mm) long-throw, carbon fiber cone with inverted carbon fibre centre cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eLow Frequency Extension\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e15Hz at -6 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eInput Connectors\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Level (Neutrik Speakon), 2x Low Level (RCA), LFE (RCA), LFE (XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Connectors\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Level (Neutrik Speakon), 1x Low Level (RCA), LFE (XLR), Line (XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower Output\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 watts (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eAmplifier Type\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eNextGen 7 Class D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eWireless Capability\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eYes - REL AirShip II (Sold Separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDual Parametric Filter\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eProtection System\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eFully Electronic SET-SAFE, D.C. Fault, Output Short\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eMains Input Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e220-240V \/ 110-120V (Market Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eFuses\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e7 Amp semi delay (230V), 15 Amp semi delay (115V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePhysical\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e743 x 540 x 816 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e85 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePiano Black Lacquer (12 coats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSupplied Accessories\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eMains Lead, Neutrik Speakon (10 Meters), User Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"REL","offers":[{"title":"Piano Black","offer_id":42386570608736,"sku":"RELNo32PB","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/ReferenceNo.32Subwoofer.jpg?v=1762766903"},{"product_id":"rel-reference-no-31-subwoofer","title":"REL Reference No. 31 Subwoofer","description":"\u003cp\u003eThe REL No. 31 is a masterpiece of audio engineering, a reference subwoofer that balances profound power with incredible speed and nuance. It is designed for those who seek the ultimate in low-frequency reproduction but whose system or room demands proportion and restraint. The No. 31 distills the essence of the flagship \u003cstrong\u003e\u003ca href=\"https:\/\/listenroom.com\/products\/rel-reference-no-32-subwoofer\"\u003eNo. 32\u003c\/a\u003e\u003c\/strong\u003e into a more compact form, combining a 12-inch pure carbon fibre driver with a 900-watt reference amplifier. This potent combination, housed in an acoustically perfect, curved cabinet, delivers bass that is devastatingly deep yet agile and articulate. Purpose-built for seamless integration with the world's finest loudspeakers and capable of being stacked in Reference Line Arrays, the No. 31 delivers a truly three-dimensional, full-range listening experience.\u003c\/p\u003e\n\u003ch5\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e12” Pure Carbon Fibre Driver:\u003c\/b\u003e A 350mm long-throw driver with an inverted carbon fibre cone for immense stiffness, allowing it to remain pistonic over its entire 4\" (100mm) of travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e900W Reference Amplifier:\u003c\/b\u003e A dedicated 900-watt (RMS) Class D amplifier provides massive power reserves and absolute, iron-fisted control over the driver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReference High Level Input:\u003c\/b\u003e Employs REL’s legendary High Level connection with specialized, reference-grade filters for a perfect, seamless blend with main speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Parametric Filters:\u003c\/b\u003e A sophisticated EQ system allows for precise in-room tuning at both the deepest and upper-bass frequencies for flawless integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReference Line Array Capable:\u003c\/b\u003e Engineered to be stacked in vertical line arrays of three (or more) units per side for the ultimate, floor-to-ceiling bass performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAcoustically Inert Cabinet:\u003c\/b\u003e A massively braced, curved-ply cabinet finished in 12 coats of hand-rubbed piano black lacquer to eliminate resonance and standing waves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eThe Heart of Carbon Fibre\u003c\/h5\u003e\n\u003cp\u003eThe soul of the No. 31 is its remarkable 12-inch (350mm) pure carbon fibre driver. This driver is a true engineering marvel, designed for both brute force and extreme agility. The entire cone structure is forged from carbon fibre, a material chosen for its incredible stiffness-to-mass ratio. This allows the driver to withstand the immense pressures generated by its 900-watt amplifier and 4 inches (100mm) of excursion, moving as a perfect piston without flexing or deforming. The result is bass that is not only incredibly deep but also lightning-fast, textured, and free of the distortion that plagues lesser designs.\u003c\/p\u003e\n\u003ch5\u003eLimitless Power, Effortless Control\u003c\/h5\u003e\n\u003cp\u003eTo animate its reference-grade driver, the No. 31 employs a dedicated 900-watt (RMS) Class D amplifier. This powerhouse is specifically designed to provide the massive, instantaneous current required for deep, dynamic bass. Its vast power reserves mean it operates in a state of effortless control, providing the iron-fisted grip needed to start and stop the 12-inch cone instantly. This is further enhanced by REL’s LimitLess Limiter™, which allows the amplifier to operate up to its limits without audible compression, ensuring that the rhythm and flow of the music are always preserved.\u003c\/p\u003e\n\u003ch5\u003ePerfect Integration, Perfect Sound\u003c\/h5\u003e\n\u003cp\u003eThe No. 31 features REL’s renowned High Level Input, allowing it to receive the exact same signal—including the tonal character and sonic signature—as your main speakers. This is the key to REL's seamless integration. For this reference model, the signal is fed into a set of specialized filters developed for the Reference Series. These are complemented by a powerful Dual Parametric EQ, which allows for micro-tuning of the subwoofer. You can gently reinforce the deepest frequencies while precisely trimming the upper-bass crossover point, achieving a blend between the subwoofer and main speakers that is perfectly coherent and utterly inaudible.\u003c\/p\u003e\n\u003ch5\u003eThe Reference Line Array: The Final Dimension\u003c\/h5\u003e\n\u003cp\u003eWhile a single No. 31 is a reference performer, its design anticipates the ultimate in audio reproduction: the Reference Line Array. The No. 31 is engineered to be vertically stacked in arrays of three (or five, in exceptionally large rooms) units per side. This approach mimics how sound is produced in a live performance, creating a floor-to-ceiling wavefront of bass that pressurizes the room more uniformly and with greater ease. This doesn't just mean more bass; it means a more open, three-dimensional soundstage, with greater clarity and focus across the entire musical spectrum. It is the key to unlocking the final dimension of your system's performance.\u003c\/p\u003e\n\u003ch5\u003eA Cabinet of Pure Artistry\u003c\/h5\u003e\n\u003cp\u003eThe No. 31’s enclosure is a critical component of its performance, sculpted to be as acoustically inert as it is beautiful. The gently curved, 2.4-inch (60mm) thick walls are constructed from layered hardwood and are massively braced internally to create a silent, rigid vault. This curved form eliminates internal standing waves, preventing the cabinet from \"singing along\" with the music and coloring the sound. Each cabinet is then painstakingly finished in 12 coats of hand-rubbed piano black lacquer, a process that takes three weeks to complete, resulting in a finish as deep and pure as the bass it produces.\u003c\/p\u003e\n\u003ch5 class=\"p1\"\u003eThe Listening Room Difference\u003c\/h5\u003e\n\u003cp class=\"p1\"\u003eWe’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eType\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eClosed box, front-firing driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eActive Driver\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e12 in. (350mm) long-throw, carbon fiber cone with inverted carbon fibre centre cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eLow Frequency Extension\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e17Hz at -6 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eInput Connectors\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Level (Neutrik Speakon), 2x Low Level (RCA), LFE (RCA), LFE (XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eOutput Connectors\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Level (Neutrik Speakon), 1x Low Level (RCA), LFE (XLR), Line (XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower Output\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e900 watts (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eAmplifier Type\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eWireless Capability\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eYes - REL AirShip II (Sold Separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDual Parametric Filter\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eProtection System\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eFully Electronic SET-SAFE, D.C. Fault, Output Short\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eMains Input Voltage\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e220-240V \/ 110-120V (Market Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eFuses\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e5 Amp semi delay (230V), 9 Amp semi delay (115V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePhysical\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e638 x 435 x 720 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e52 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePiano Black Lacquer (12 coats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSupplied Accessories\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eMains Lead, Neutrik Speakon (10 Meters), User Manual, Remote Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"REL","offers":[{"title":"Piano Black","offer_id":42386570641504,"sku":"RELNo31PB","price":9000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/files\/ReferenceNo.31Subwoofer_3.jpg?v=1762727477"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5073\/8528\/collections\/ReferenceNo.32Subwoofer.jpg?v=1770323107","url":"https:\/\/listenroom.com\/collections\/rel-reference.oembed","provider":"The Listening Room","version":"1.0","type":"link"}