{"product_id":"db-drive-wdx8g5r-4-8-inch-dual-4-ohm-subwoofer-final-inventory","title":"DB Drive WDX8G5R.4 8-Inch Dual 4-Ohm Subwoofer — Final Inventory","description":"\u003ch2\u003eDB Drive WDX8G5R.4 8-Inch Dual 4-Ohm Subwoofer\u003c\/h2\u003e\u003cp\u003eNeed more bass than a typical compact 8-inch sub can give you, but the build still needs to stay with an 8-inch driver? That is where the WDX8G5R.4 fits. DB Drive rates it at 900 watts nominal and 1800 watts dynamic, with a 2.5-inch four-layer high-temperature voice coil, die-cast vented aluminum basket, non-pressed paper cone, and reinforced suspension. This is an 8-inch sub built for a real amplifier and enclosure, not a lightweight factory-replacement woofer.\u003c\/p\u003e\u003cp\u003eThe dual 4-ohm voice coils give us useful wiring options. One sub can be wired to a 2-ohm or 8-ohm final load, so the amplifier needs to be chosen around that. With two of these, we have additional final-impedance options, but the wiring still needs to be planned before the enclosure and amplifier are locked in.\u003c\/p\u003e\u003cp\u003eThe important part is not assuming that an 8-inch cone automatically means a shallow or tiny-box installation. DB Drive publishes an 8.78-inch overall diameter, 7.36-inch cutout, 6.41-inch mounting depth, and 0.10 ft³ of woofer displacement. That is deeper than the WDX8G2R platform, so this is the 8-inch route when output capability matters more than minimizing enclosure depth.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it will not do:\u003c\/strong\u003e this is not a shallow-mount 8-inch subwoofer, and a single dual-4-ohm WDX8G5R.4 cannot be wired to a 1-ohm final load. If the system requires a shallow driver, an extremely compact enclosure, or a 1-ohm load from one subwoofer, we would choose a different model.\u003c\/p\u003e\u003ch3\u003eManufacturer Construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2.5-inch four-layer anodized-aluminum high-temperature voice coil\u003c\/li\u003e\n\u003cli\u003eNon-pressed paper cone\u003c\/li\u003e\n\u003cli\u003eDouble-stitched reinforced foam surround\u003c\/li\u003e\n\u003cli\u003eDual poly-cotton dampeners\u003c\/li\u003e\n\u003cli\u003eDie-cast aluminum vented basket\u003c\/li\u003e\n\u003cli\u003eRubber gasket trim ring\u003c\/li\u003e\n\u003cli\u003eLarge-gauge compression terminals\u003c\/li\u003e\n\u003cli\u003eProtective magnet cover\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eManufacturer Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDynamic power handling: 1800 watts\u003c\/li\u003e\n\u003cli\u003eNominal power handling: 900 watts\u003c\/li\u003e\n\u003cli\u003eImpedance: dual 4-ohm voice coils\u003c\/li\u003e\n\u003cli\u003eDC voice-coil resistance (Re): 2 × 3.2 ohms\u003c\/li\u003e\n\u003cli\u003eResonant frequency (Fs): 44.912 Hz\u003c\/li\u003e\n\u003cli\u003eMechanical quality factor (Qms): 2.869\u003c\/li\u003e\n\u003cli\u003eElectrical quality factor (Qes): 0.906\u003c\/li\u003e\n\u003cli\u003eTotal quality factor (Qts): 0.698\u003c\/li\u003e\n\u003cli\u003eEquivalent air volume (Vas): 4.191 L\u003c\/li\u003e\n\u003cli\u003eMechanical compliance (Cms): 73.013 mm\/N\u003c\/li\u003e\n\u003cli\u003eMoving mass (Mms): 171.997 g\u003c\/li\u003e\n\u003cli\u003eForce factor (BL): 18.512\u003c\/li\u003e\n\u003cli\u003eSensitivity: 78.1 dB\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 8.78 inches\u003c\/li\u003e\n\u003cli\u003eCutout diameter: 7.36 inches\u003c\/li\u003e\n\u003cli\u003eMounting depth: 6.41 inches\u003c\/li\u003e\n\u003cli\u003eWoofer displacement: 0.10 ft³\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFinal Inventory\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRemaining SMS Car Audio inventory.\u003c\/strong\u003e This unit is new\/unused unless otherwise stated on the listing. Quantity is limited and it will not be restocked. Contact SMS Car Audio for final inventory pricing and availability. Final sale. Confirm the 2-ohm or 8-ohm wiring plan, amplifier power, enclosure design, net volume after driver displacement, and available mounting depth before purchase.\u003c\/p\u003e","brand":"DB Drive","offers":[{"title":"Default Title","offer_id":51164576415977,"sku":"811536039484","price":399.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0311\/8134\/0811\/files\/WDX8G5R.4_front_image.png?v=1781039346","url":"https:\/\/smscaraudio.com\/products\/db-drive-wdx8g5r-4-8-inch-dual-4-ohm-subwoofer-final-inventory","provider":"SMS Car Audio","version":"1.0","type":"link"}