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. Product owned by anyone other than the original purchaser from an authorized JL Audio dealer. This gives us a highly accurate model of a speaker's actual behavior under real power, something that the traditional Thiele-Small models or other low power measurements cannot do. Detailed Information: JL Audio's patented FCAM™ technology is an innovative method of bonding the surround/cone assembly to the voice coil former/spider assembly. These modeling routines are intense, requiring hours to run for a whole speaker. Free shipping. â¦ The elevated frame technology greatly increases thermal power handling, reduces compression effects and does so without any additional parts. To pull this off in a competitive world market, our production engineering team has created one of the world’s most advanced loudspeaker assembly facilities and established a global network of quality component suppliers who build to our specifications. Building woofers this way requires much more labor and parts complexity than the simpler woven-in approach, but the payoff is in reduced distortion, reduced mechanical noise and improved reliability.\u003c\/p\u003e\u003cimg src=\"https:\/\/embed.widencdn.net\/svg\/jlaudio\/fn0gmjcegm\/JLA-BuiltinUSA-Logo-C.svg?u=fhkrg%20alt=\" built in u.s.a. with global components width=\"200\"\u003e\u003ch3\u003eBuilt in U.S.A. with Global Components\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cbr\u003eJL Audio's Miramar, Florida loudspeaker production facility is one of the most advanced in the world.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDetailed Information:\u003c\/strong\u003e\u003cbr\u003eAt a time when most audio products are built overseas, JL Audio’s commitment to in-house loudspeaker production continues to grow. This high-performance speaker can exceed this level. Coverage may be invalidated as this date is previous to purchase date. Product that has not been installed according to the instructions in the owner's manual\u003cbr\u003e5. Product owned by anyone other than the original purchaser from an authorized JL Audio dealer. Summary:JL Audio's patented Elevated Frame Cooling design delivers cool air through slots directly above the top-plate to the voice coil of the speaker. Return only defective components. or by 'acts of God' (flooding, lightning, locusts, etc.)\u003cbr\u003e8. 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\n* All specifications are subject to change without notice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Notice\u003c\/strong\u003e\u003cbr\u003eProlonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This air path leads directly to the voice coil and then turns upward into the spider air cavity. (10 mm) of controlled, one-way, linear excursion.\u003c\/p\u003e\u003cp\u003eThe 8W3v3-4 is best used with amplifier power in the 75W - 250W range and is optimized to operate in a tiny 0.30 cu. Product that has not been installed according to the instructions in the owner's manual\u003cbr\u003e5. Lead-wires that are attached or woven into the spider material can alter the spider's \"stretching\" behavior. It employs the same technologies as its larger diameter brethren to deliver a whopping 0.375 in. The result is flawless high-excursion lead-wire behavior, with outstanding reliability and none of the compromises inherent to a woven-in lead wire system. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van. Enclosure Notes The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. or by 'acts of God' (flooding, lightning, locusts, etc.)\u003cbr\u003e8. Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO. Managing the 'whipping' behavior of the wire and making sure it does not contact the cone or spider is one challenge. Another is ensuring that the leads do not short one another or the frame of the woofer. Because DMA does not rely on a steady-state model, it is able to consider shifts in the circuit elements being analyzed. 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\n* All enclosure volumes listed above are net internal volumes! To pull this off in a competitive world market, our production engineering team has created one of the world’s most advanced loudspeaker assembly facilities and established a global network of quality component suppliers who build to our specifications. This high-performance speaker can exceed this level. The amplifier will put out 150W RMS at … The result is flawless high-excursion lead-wire behavior, with outstanding reliability and none of the compromises inherent to a woven-in lead wire system. In other words, multiple parts are assembled and glued sequentially into the basket, leading to stacking of tolerances and making it difficult to achieve optimal assembly precision.\u003c\/p\u003e\n\u003cp\u003eJL Audio's patent-pending insert-molded spider carrier permanently bonds the spider to a mechanically robust carrier that also incorporates the terminal assembly and lead wire strain relief features for enhanced reliability and optimal alignment of parts. JL Audio will, at its discretion, repair or replace any products that exhibit defects in materials and/or workmanship during the warranty period.Please hold on to your sales receipt! Summary: Carefully engineered lead-wire design and attachments ensure controlled, quiet lead-wire behavior under the most extreme excursion demands. Summary: This assembly technique, conceived by JL Audio, ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment. The benefit is a more precisely built, more mechanically sound loudspeaker.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\u003cimg src=\"https:\/\/embed.widencdn.net\/svg\/jlaudio\/w5cljmnbja\/JLA-TrimRing-logo.svg?u=fhkrg%20alt=\" customizable trim ring width=\"200\"\u003e\u003ch3\u003eCustomizable Trim Ring\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cbr\u003eThis removable ring can be painted to match the installation theme and directly receives JL Audio grille mesh inserts (sold separately).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetailed Information:\u003c\/strong\u003e\u003cbr\u003eThis ABS trim ring is molded in black, but that doesn't mean it has to stay that way.