{"product_id":"4215-d4","title":"4215 D4 – 4000 Series 15″ Subwoofer","description":"\u003cp\u003eThe 4000 series 15 employs a finely-tuned balance of damping and extensive motor force to achieve very high efficiency, offering exceptional versatility and unmatched performance in a variety of real-world functions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFs\u003c\/strong\u003e 32.540 Hz\u003cbr\u003e\n\u003cstrong\u003eQms\u003c\/strong\u003e 5.375\u003cbr\u003e\n\u003cstrong\u003eVas\u003c\/strong\u003e 44.870 liters\u003cbr\u003e\n\u003cstrong\u003eCms\u003c\/strong\u003e 0.052 mm\/N\u003cbr\u003e\n\u003cstrong\u003eMms\u003c\/strong\u003e 451.400 g\u003cbr\u003e\n\u003cstrong\u003eRms\u003c\/strong\u003e 17.359 kg\/s\u003cbr\u003e\n\u003cstrong\u003eDia\u003c\/strong\u003e 314.400 mm\u003cbr\u003e\n\u003cstrong\u003eSd\u003c\/strong\u003e 776.345 sq cm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQes\u003c\/strong\u003e 0.546\u003cbr\u003e\n\u003cstrong\u003eRe\u003c\/strong\u003e 7.432 ohms\u003cbr\u003e\n\u003cstrong\u003eLe\u003c\/strong\u003e 3.961 mH\u003cbr\u003e\n\u003cstrong\u003eZ\u003c\/strong\u003e 8.918 ohms\u003cbr\u003e\n\u003cstrong\u003eBL\u003c\/strong\u003e 35.430 Tm\u003cbr\u003e\n\u003cstrong\u003eBL^2\/Re\u003c\/strong\u003e 168.907 N^2\/W\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQts\u003c\/strong\u003e 0.496\u003cbr\u003e\n\u003cstrong\u003eno\u003c\/strong\u003e 0.273 %\u003cbr\u003e\n\u003cstrong\u003eSPL\u003c\/strong\u003e 86.506 dB\u003cbr\u003e\n\u003cstrong\u003eEBP\u003c\/strong\u003e 59.553\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXmax\u003c\/strong\u003e 23.5 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e 15in\u003cbr\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e 15.6in \/ 396mm\u003cbr\u003e\n\u003cstrong\u003eMounting Hole Diameter \u003c\/strong\u003e14.12in \/ 358.65mm\u003cbr\u003e\n\u003cstrong\u003eMotor Outer Diameter \u003c\/strong\u003e7.72in \/ 196mm\u003cbr\u003e\n\u003cstrong\u003eMounting Depth\u003c\/strong\u003e 895in \/ 227.5mm\u003cbr\u003e\n\u003cstrong\u003eDriver Displacement\u003c\/strong\u003e 0.157 cu ft \/ 4.47 l\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum Sealed Volume\u003c\/strong\u003e N\/A\u003cbr\u003e\n\u003cstrong\u003eMinimum Vented Volume\u003c\/strong\u003e 1.65 cu ft \/ l net*\u003c\/p\u003e\n\u003cp\u003e* Tune for desired response\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-large wp-image-2484\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/recommended_enc_4215D4_vented_single-778x1024.png\" alt=\"\" width=\"778\" height=\"1024\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-large wp-image-2483\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/recommended_enc_4215D4_vented_dual-1024x960.png\" alt=\"\" width=\"900\" height=\"844\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe above designs have been engineered for a “two tier” balance of compatibility: First, between the cabin acoustics of a sedan, hatchback and an SUV, and second, between the two available voice coil configurations, for a total of six balance points. This ensures a linear response and optimal power handling for listening purposes under most circumstances. Please visit our \u003ca href=\"https:\/\/adcaraudio.com\/store\/enclosure-design-service\/\"\u003eEnclosure Design Service\u003c\/a\u003e page for custom designs.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-large wp-image-2485\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/recommended_enc_4215D4_vented_dual_midSUVonly-1024x948.png\" alt=\"\" width=\"900\" height=\"833\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe above design has been engineered for a mid-size SUV only.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-7.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-2704\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-suv4doordualsubs.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-8.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-2709\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-sedan4doorsinglesubs.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-36.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-3389\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-sedan-4-door-dual-subs-2.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-37.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-3395\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-30-40.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-38.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-3420\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-sedan-4-door-dual-subs-3.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-159.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-4178\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-98.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-175.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-4717\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-113.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-220.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-5079\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-157.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-264.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-5748\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-202.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-288.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-5943\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-226.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-325.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-7095\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-262.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Design-340.pdf\"\u003e\u003cimg class=\"alignnone size-full wp-image-7683\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/Web-Enclosure-Design-Button-277.png\" alt=\"\" width=\"300\" height=\"255\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Audio Dynamics","offers":[{"title":"Default Title","offer_id":52549569708263,"sku":"4215 D4","price":599.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.mediocrecustoms.com\/products\/4215-d4","provider":"Mediocre Customs","version":"1.0","type":"link"}