{"id":2466,"date":"2021-01-05T16:51:18","date_gmt":"2021-01-05T22:51:18","guid":{"rendered":"https:\/\/adcaraudio.com\/store\/?post_type=product&p=2466"},"modified":"2026-03-08T17:30:07","modified_gmt":"2026-03-08T23:30:07","slug":"4215-d4","status":"publish","type":"product","link":"https:\/\/adcaraudio.com\/store\/product\/4215-d4\/","title":{"rendered":"4215 D4"},"content":{"rendered":"

The 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.<\/p>\n

Fs<\/strong> 32.540 Hz
\nQms<\/strong> 5.375
\nVas<\/strong> 44.870 liters
\nCms<\/strong> 0.052 mm\/N
\nMms<\/strong> 451.400 g
\nRms<\/strong> 17.359 kg\/s
\nDia<\/strong> 314.400 mm
\nSd<\/strong> 776.345 sq cm<\/p>\n

Qes<\/strong> 0.546
\nRe<\/strong> 7.432 ohms
\nLe<\/strong> 3.961 mH
\nZ<\/strong> 8.918 ohms
\nBL<\/strong> 35.430 Tm
\nBL^2\/Re<\/strong> 168.907 N^2\/W<\/p>\n

Qts<\/strong> 0.496
\nno<\/strong> 0.273 %
\nSPL<\/strong> 86.506 dB
\nEBP<\/strong> 59.553<\/p>\n

Xmax<\/strong> 23.5 mm<\/p>\n

Nominal Diameter<\/strong> 15in
\nOverall Diameter<\/strong> 15.6in \/ 396mm
\nMounting Hole Diameter <\/strong>14.12in \/ 358.65mm
\nMotor Outer Diameter <\/strong>7.72in \/ 196mm
\nMounting Depth<\/strong> 895in \/ 227.5mm
\nDriver Displacement<\/strong> 0.157 cu ft \/ 4.47 l<\/p>\n

Minimum Sealed Volume<\/strong> N\/A
\nMinimum Vented Volume<\/strong> 1.65 cu ft \/ l net*<\/p>\n

* Tune for desired response<\/p>\n

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The 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 Enclosure Design Service<\/a> page for custom designs.<\/p>\n

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The above design has been engineered for a mid-size SUV only.<\/p>\n

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<\/h3>\n
    \n
  • Dual 4 ohm 15″ Subwoofer<\/li>\n
  • 500W \u2013 1,500W optimal power range<\/li>\n
  • 3 inch voice coil<\/li>\n
  • Triple stack 225oz motor<\/li>\n
  • 23.5mm Xmax<\/li>\n
  • Double high current tinsel leads<\/li>\n
  • Nomex spider<\/li>\n
  • Designed for use in small vented enclosures.<\/li>\n
  • Engineered in the USA.<\/li>\n
  • Also available in dual 2 ohm<\/li>\n<\/ul>\n","protected":false},"featured_media":2499,"template":"","meta":{"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[63,18],"product_tag":[],"class_list":{"0":"post-2466","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-4000-series-subwoofers","7":"product_cat-subwoofers","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product\/2466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/media\/2499"}],"wp:attachment":[{"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/media?parent=2466"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_brand?post=2466"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_cat?post=2466"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/adcaraudio.com\/store\/wp-json\/wp\/v2\/product_tag?post=2466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}