{"product_id":"rel-no-31-powered-subwoofer","title":"REL - No.31 - Reference Powered Subwoofer","description":"\u003cdiv style=\"font-size:14px; font-family:Arial, Helvetica, sans-serif; line-height:1.6; color:#222;\"\u003e\n\n\u003cp\u003e\nREL No.31 distills the technologies, craftsmanship, and performance philosophy of the flagship No.32 into a more space-friendly design without sacrificing the speed, transparency, and emotional connection that define the Reference Series. Created for discerning listeners who demand world-class bass performance in environments where the larger No.32 may not be practical, No.31 delivers extraordinary dynamics, nuance, and low-frequency authority from a beautifully engineered compact chassis.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAt its core is a 12-inch pure carbon fiber driver powered by REL's NextGen 7 amplifier platform. Combined with advanced room-tuning capabilities, Line Array compatibility, and the included REL Reference Remote, No.31 offers a level of refinement and system integration rarely found in any subwoofer regardless of price.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eDESIGN\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\nNo.31 shares the same design language as the flagship No.32, featuring elegant plated handles recessed into sculpted elliptical side panels, gently curved cabinet walls, and REL's distinctive string grille design that promotes unrestricted airflow while minimizing acoustic coloration.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFinished in twelve hand-applied coats of Piano Black lacquer, No.31 delivers a luxurious appearance that complements the finest listening rooms and high-end audio systems. Despite its more compact footprint, it retains the visual presence, structural integrity, and premium craftsmanship expected of a Reference Series component.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eDRIVER\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\nAt the heart of No.31 is a 12-inch pure carbon fiber long-throw driver utilizing an inverted carbon fiber center cap and a substantial die-cast alloy chassis. Driven by a specially wound 3-inch voice coil and a massive 13-pound magnetic structure, the driver delivers exceptional excursion capability, speed, and control while remaining composed even at extreme output levels.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe result is bass reproduction that combines visceral impact with remarkable delicacy, offering both effortless dynamic authority and the ability to reveal subtle musical textures and low-level detail.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eAMPLIFIER\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\nNo.31 utilizes REL's advanced NextGen 7 Class D amplifier platform, derived directly from the flagship No.32. Rated at 900 watts RMS, the amplifier is optimized specifically for the 12-inch carbon fiber driver to deliver maximum performance while ensuring long-term reliability.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAdvanced technologies include REL's proprietary LimitLess Limiter™, which allows the amplifier to approach its limits without audible compression, along with dual parametric filters for precise in-room tuning. Users can fine-tune deep bass response and upper bass integration to achieve seamless blending with the main loudspeakers and optimal room performance.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eWIRELESS\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\nNo.31 is compatible with REL's optional AirShip II wireless system, providing high-performance wireless connectivity while preserving the speed, transparency, and dynamics expected from a Reference Series product.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eREFERENCE REMOTE \u0026amp; LINE ARRAY\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\nIncluded with No.31 is REL's beautifully crafted Reference Remote Control, allowing precise adjustment of gain, crossover, phase, LFE level, and dual parametric equalization directly from the listening position. Designed specifically for the Reference Series, it provides an elegant and intuitive interface for achieving perfect system integration.\n\u003c\/p\u003e\n\n\u003cp\u003e\nNo.31 also supports REL's advanced Line Array architecture, allowing up to three—or even five in exceptionally large spaces—subwoofers to be vertically stacked per channel. This unique configuration dramatically improves image height, scale, dynamics, and overall realism while maintaining individual control of each subwoofer within the array.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eWHAT'S IN THE BOX\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cul style=\"margin-top:0;\"\u003e\n\u003cli\u003eNo.31 Reference Subwoofer\u003c\/li\u003e\n\u003cli\u003eProtective Grille\u003c\/li\u003e\n\u003cli\u003e6 ft. AC Power Cord\u003c\/li\u003e\n\u003cli\u003e32 ft. Neutrik Speakon Cable\u003c\/li\u003e\n\u003cli\u003eReference Remote Control\u003c\/li\u003e\n\u003cli\u003e(2) AAA Batteries\u003c\/li\u003e\n\u003cli\u003eLine Array Mounting Hardware\u003c\/li\u003e\n\u003cli\u003eUser Manual \u0026amp; Warranty Information\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#f39c12; font-size:14px; margin-bottom:6px;\"\u003e\n\u003cstrong\u003eSPECIFICATIONS \/ DIMENSIONS\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Closed Box, Front-Firing Driver\u003cbr\u003e\n\u003cstrong\u003eActive Driver:\u003c\/strong\u003e 12 in. (300mm) Long-Throw Carbon Fiber Cone with Inverted Carbon Fiber Center Cap, Die-Cast Alloy Chassis\u003cbr\u003e\n\u003cstrong\u003ePassive Radiator:\u003c\/strong\u003e None\u003cbr\u003e\n\u003cstrong\u003eAmplifier Power:\u003c\/strong\u003e 900 Watts RMS\u003cbr\u003e\n\u003cstrong\u003eAmplifier Type:\u003c\/strong\u003e NextGen 7 Class D\u003cbr\u003e\n\u003cstrong\u003eLow Frequency Extension:\u003c\/strong\u003e 17Hz (-6dB)\u003cbr\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e High Level Neutrik Speakon, Dual RCA Low Level, LFE RCA, LFE XLR\u003cbr\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e High Level Neutrik Speakon, Low Level RCA, LFE XLR, Line XLR\u003cbr\u003e\n\u003cstrong\u003eWireless Capability:\u003c\/strong\u003e REL AirShip II (Sold Separately)\u003cbr\u003e\n\u003cstrong\u003eDual Parametric Filter:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003cstrong\u003eAvailable Finish:\u003c\/strong\u003e Piano Black Lacquer\u003cbr\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e 12-Coat High Gloss Piano Black Lacquer\u003cbr\u003e\n\u003cstrong\u003eProtection System:\u003c\/strong\u003e Fully Electronic Set Safe\u003cbr\u003e\n\u003cstrong\u003eD.C. Fault Protection:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003cstrong\u003eOutput Short Protection:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003cstrong\u003eMains Voltage:\u003c\/strong\u003e 220-240V \/ 110-120V Depending on Market\u003cbr\u003e\n\u003cstrong\u003eFuse Rating:\u003c\/strong\u003e 7 Amp Semi Delay (230V), 15 Amp Semi Delay (115V)\u003cbr\u003e\n\u003cstrong\u003eIncluded High-Level Cable:\u003c\/strong\u003e 10 Meter (32 ft.) Neutrik Speakon\u003cbr\u003e\n\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 25.125 x 17 x 28.5 in. (638 x 435 x 720 mm)\u003cbr\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 114.5 lbs. (52 kg)\u003cbr\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 156 lbs. (71 kg)\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"REL Acoustic","offers":[{"title":"Default Title","offer_id":51812868948256,"sku":null,"price":9000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/3728\/1568\/files\/imgi_104_No31_Front_Grill-transparent-2-e1660624735221.png?v=1781030077","url":"https:\/\/salon1audio.com\/products\/rel-no-31-powered-subwoofer","provider":"Salon 1 Audio","version":"1.0","type":"link"}