{"product_id":"sundown-audio-u18-v2-18-subwoofer-dvc","title":"Sundown Audio U18 v.2 18\" 2000W RMS Subwoofer DVC","description":"\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e2000 Watts RMS \/ 4000 Watts Peak\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eDual 2 or 4 ohm voice coils\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eOptimized for small ported or bandpass enclosures\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eAluminum 3” voice coil former for superior heat dissipation\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHigh-temperature copper voice coil\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eDouble stitched surround\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eHeavy-duty cast basket\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSpring-loaded terminals accept up to 8-gauge wire\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eStitched-on heavy-duty tinsel leads\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eSolid pole with vent channels and aluminum shortin\u003cimg\u003eg ring cap\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eRear gap-venting\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eTop-Plate Cooling Channels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDesigned to be at home in the competition lanes or playing your favorite music, the U Series is the premier “standard suspension” woofer in the Sundown lineup. A double-stacked 9.4-inch wide ferrite magnet system is coupled to a thick top plate. A thick set of shorting rings are used inside the magnets and on the pole cap, smoothing out frequency response while doubling as a heat sink and airflow guide. A custom aluminum frame was designed specifically for the U Series. It’s substantially thicker and equipped with heat dissipation ribs at the bottom of the frame. The U v.2 motor also features an extended pole piece to keep the coil under perfect control under high stress. The coil temperature is controlled with machined, high-velocity pole channels and a series of 16 direct air-gap vents in the back plate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"ia-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eD2 Model\u003c\/th\u003e\n\u003cth\u003eD4 Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power\u003c\/td\u003e\n\u003ctd\u003e2000 W\u003c\/td\u003e\n\u003ctd\u003e2000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e4000 W\u003c\/td\u003e\n\u003ctd\u003e4000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplacement\u003c\/td\u003e\n\u003ctd\u003e.26cu ft\u003c\/td\u003e\n\u003ctd\u003e.26cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e18.63\"\u003c\/td\u003e\n\u003ctd\u003e18.63\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e16.9\"\u003c\/td\u003e\n\u003ctd\u003e16.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Diameter\u003c\/td\u003e\n\u003ctd\u003e9.7\"\u003c\/td\u003e\n\u003ctd\u003e9.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd\u003e3.0cu ft\u003c\/td\u003e\n\u003ctd\u003e3.0cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorted Enclosure\u003c\/td\u003e\n\u003ctd\u003e4.0cu ft\u003c\/td\u003e\n\u003ctd\u003e4.0cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Port Tuning\u003c\/td\u003e\n\u003ctd\u003e35hz\u003c\/td\u003e\n\u003ctd\u003e35hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Port Area\u003c\/td\u003e\n\u003ctd\u003e64sq in\u003c\/td\u003e\n\u003ctd\u003e64sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4th Order Sealed\u003c\/td\u003e\n\u003ctd\u003e2.25cu ft\u003c\/td\u003e\n\u003ctd\u003e2.25cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4th Order Ported\u003c\/td\u003e\n\u003ctd\u003e6.75cu ft\u003c\/td\u003e\n\u003ctd\u003e6.75cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4th Order Port Area\u003c\/td\u003e\n\u003ctd\u003e135sq in\u003c\/td\u003e\n\u003ctd\u003e135sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4th Order Port Length\u003c\/td\u003e\n\u003ctd\u003e6\"\u003c\/td\u003e\n\u003ctd\u003e6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Dual 4 Ohm","offer_id":50549254979842,"sku":"SD-U18V2-D4","price":719.99,"currency_code":"USD","in_stock":true},{"title":"Dual 2 Ohm","offer_id":50549255012610,"sku":"SD-U18V2-D2","price":719.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7333\/4274\/files\/Uv2-18-001-4a23535a.webp?v=1790450185","url":"https:\/\/www.mooncarstereo.com\/products\/sundown-audio-u18-v2-18-subwoofer-dvc","provider":"Moon Car Stereo","version":"1.0","type":"link"}