{"product_id":"jl-audio-12w1v3-4","title":"JL Audio 12W1V3-4","description":"\u003cp\u003e\u003cspan\u003eThe The 12W1v3-4 is best used with amplifier power in the 75W - 300W range and is optimized to operate in a compact 1.10 cu. ft. (31.5 l) sealed enclosure. Detailed enclosure recommendations can be found in the \"Specifications\" tab.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cbr\u003e\u003cimg alt=\"W1v3 Product Spotlight\" height=\"135\" longdesc=\"http:\/\/www.jlaudio.co.uk\/Video%20Thumbnails\" src=\"http:\/\/mediacdn.jlaudio.com\/media\/mfg\/9013\/media_image\/dev_1\/W1v3_PS_Thumb.jpg\" title=\"W1v3 Product Spotlight\" usemap=\"http:\/\/www.jlaudio.co.uk\/89963\" width=\"240\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan\u003eGeneral Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003cimg alt=\"Table_Image\" src=\"http:\/\/mediacdn.jlaudio.com\/media\/mfg\/9013\/media_image\/live_1\/12W1v3_PC.png?1363735960\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous Power Handling (RMS) 300 W\u003c\/li\u003e\n\u003cli\u003eRecommended RMS Amplifier Power 75 - 300 W\u003c\/li\u003e\n\u003cli\u003eNominal Impedance (Znom) 4 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePhysical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNominal Diameter 12.0 in \/ 300 mm\u003c\/li\u003e\n\u003cli\u003eOverall Diameter (A) 12.5 in \/ 318 mm\u003c\/li\u003e\n\u003cli\u003eMounting Hole Diameter (B) 11.0625 in \/ 281 mm\u003c\/li\u003e\n\u003cli\u003eBolt Hole Circle (C) 11.7 in \/ 297 mm\u003c\/li\u003e\n\u003cli\u003eMagnet Diameter (D) 5.25 in \/ 133 mm\u003c\/li\u003e\n\u003cli\u003eMounting Depth (E) 5.41 in \/ 137 mm\u003c\/li\u003e\n\u003cli\u003eDriver Displacement 0.052 cu ft \/ 1.47 L\u003c\/li\u003e\n\u003cli\u003eNet Weight 12.2 lb \/ 5.5 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eParameters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFree Air Resonance (Fs) 26.21 Hz\u003c\/li\u003e\n\u003cli\u003eElectrical “Q” (Qes) 0.535\u003c\/li\u003e\n\u003cli\u003eMechanical “Q” (Qms) 8.2\u003c\/li\u003e\n\u003cli\u003eTotal Speaker “Q” (Qts) 0.502\u003c\/li\u003e\n\u003cli\u003eEquivalent Compliance (Vas) 2.706 cu ft \/ 76.63 L\u003c\/li\u003e\n\u003cli\u003eOne-Way Linear Excursion (Xmax)* 0.45 in \/ 11 mm\u003c\/li\u003e\n\u003cli\u003eReference Efficiency (no) 0.2500%\u003c\/li\u003e\n\u003cli\u003eEfficiency (1 W \/ 1 m)** 86.1 dB SPL\u003c\/li\u003e\n\u003cli\u003eEffective Piston Area (Sd) 81.426 sq in \/ 0.0525 sq m\u003c\/li\u003e\n\u003cli\u003eDC Resistance (Re) 3.915 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.\u003cbr\u003e** Efficiency (1 W \/ 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.\u003c\/p\u003e\n\u003ch2 class=\"spec_title inactive\"\u003eSealed Enclosure Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"Table_Image\" src=\"http:\/\/mediacdn.jlaudio.com\/media\/mfg\/9013\/media_image\/live_1\/Sealed_ENC_Dimensions.png?1302928947\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWall Thickness 0.75 in \/ 19 mm\u003c\/li\u003e\n\u003cli\u003eFront Baffle Thickness 0.75 in \/ 19 mm\u003c\/li\u003e\n\u003cli\u003eVolume (net int.) 1.10 cu ft \/ 31.5 L\u003c\/li\u003e\n\u003cli\u003eExternal Width (W) 16 in \/ 406 mm\u003c\/li\u003e\n\u003cli\u003eExternal Height (H) 16 in \/ 406 mm\u003c\/li\u003e\n\u003cli\u003eExternal Depth (D) 11 in \/ 279 mm\u003c\/li\u003e\n\u003cli\u003eF3 39.63 Hz\u003c\/li\u003e\n\u003cli\u003eFc 48.75 Hz\u003c\/li\u003e\n\u003cli\u003eQtc 0.9338\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"spec_html\"\u003e\n\u003cstrong\u003eEnclosure Notes\u003c\/strong\u003e\n\u003cp\u003e* The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6.5 mm) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure.\u003cbr\u003e* All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.\u003cbr\u003e* When using multiple subwoofers in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support.\u003cbr\u003e* We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.\u003cbr\u003e* All specifications are subject to change without notice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec_html\"\u003e\n\u003cstrong\u003eSafety Notice\u003c\/strong\u003e\n\u003cp\u003eProlonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.\u003c\/p\u003e\n\u003cp\u003eWhen installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.\u003c\/p\u003e\n\u003ch2\u003ePorted Enclosure Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"Table_Image\" src=\"http:\/\/mediacdn.jlaudio.com\/media\/mfg\/9013\/media_image\/live_1\/Slot_Ported_ENC_Dimensions.png?1302929256\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWall Thickness 0.75 in \/ 19 mm\u003c\/li\u003e\n\u003cli\u003eFront Baffle Thickness 0.75 in \/ 19 mm\u003c\/li\u003e\n\u003cli\u003eVolume (net int.) 1.6 cu ft \/ 45.3 L\u003c\/li\u003e\n\u003cli\u003eExternal Width (W) 25 in \/ 635 mm\u003c\/li\u003e\n\u003cli\u003eExternal Height (H) 15.5 in \/ 394 mm\u003c\/li\u003e\n\u003cli\u003eExternal Depth (D) 13 in \/ 330 mm\u003c\/li\u003e\n\u003cli\u003eInternal Slot Port Width (SW) 1.5 in \/ 38 mm\u003c\/li\u003e\n\u003cli\u003eInternal Slot Port Height (SH) 14 in \/ 356 mm\u003c\/li\u003e\n\u003cli\u003eInternal Slot Port Depth (SD) 30.75 in \/ 781 mm\u003c\/li\u003e\n\u003cli\u003ePort Extension Length (EL) 17 in \/ 432 mm\u003c\/li\u003e\n\u003cli\u003eTune to 31.79 Hz\u003c\/li\u003e\n\u003cli\u003eF3 31.41 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Preliminary Ported Enclosure Specs\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eSafety Notice\u003cbr\u003eProlonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.\u003cbr\u003eWhen installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"JL-Audio","offers":[{"title":"Default Title","offer_id":56715216945534,"sku":"JL12W1V3-4","price":197.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/1394\/9054\/files\/841609bda9dea34ac4153d40d463df64.jpg?v=1765913068","url":"https:\/\/www.caraudiotrade.com\/products\/jl-audio-12w1v3-4","provider":"Car Audio Trade","version":"1.0","type":"link"}