{"product_id":"lowersubstitute-e6429","title":"Sundown Audio X-6.5SW 6.5\" 400w RMS Car Subwoofer SVC 4-ohm Sub X6.5 v.2 S4","description":"\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e\u003cfont size=\"5\"\u003eDescription:\u003cbr\u003e\u003c\/font\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 152);\"\u003e\u003cstrong\u003eNotice On Packaging For Subwoofers\u003cbr\u003e\u003c\/strong\u003eSundown Audio has led the industry in quality and performance for over a decade. To improve accuracy and transparency, we have updated our subwoofer power ratings to reflect true real-world performance.\u003cbr\u003e\u003cbr\u003eDuring this transition, some packaging may show previous ratings. Performance fully aligns with our current published specifications. If you have any questions about authenticity or ratings, please contact directly for confirmation.\u003cbr\u003e\u003cbr\u003eThe X-6.5SW is Sundown Audio's first true sub-woofer smaller than 8 inches in diameter. It features a voice coil identical in winding dimensions to their SA-8 v.3 subwoofer (a massive 2” diameter coil with a 1.4” winding height) so thermal power handling is absolutely massive.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e\u003cfont size=\"5\"\u003eFeatures:\u003c\/font\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eXmax: 16mm one-way by 70% BL\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRMS Power: 400-watts\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLarge noise-free pole vent design\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSpecially designed spiral-cut basket venting technique (unique to this model in our line)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003e2” diameter 4-Layer CCAW wire voice coil wound on thick Kapton former\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCopper Pole-Cap For Reduced Inductive Distortion\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eIntegrated Tinsel Leads to prevent lead slapping\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eProprietary flat aluminum diaphragm\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eNote on Power Handling: This woofer is mechanically limited. It requires a SMALL ported enclosure. Placing it in a large or sealed enclosure will reduce mechanical power handling substantially.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003ePorted: 0.25-0.33 ft^3 volume\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e\u003cfont size=\"5\"\u003eBox Recommendations:\u003c\/font\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSealed: .15 ft^3\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003ePorted: 0.3 ft^3\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eDisplacement: .05 ft^3\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eDepth: 4.00\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eOutside Diameter: 6.75\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCut-Out: 5.52\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRecommended Tuning: 32hz\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRecommended Port Area: 4 in^2\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e\u003cfont size=\"5\"\u003eSpecifications:\u003c\/font\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003eT\/S Specs:\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRMS Power: 400\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRE (Ohms): 2.900\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eFS (Hz): 55.778\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVAS (L): 1.657\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQes: 0.597\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQms: 9.255\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQts: 0.581\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLe (mH): 0.6\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eBL (NA): 11.702\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMms (Grams): 83.452\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCms (uM\/N): 97.561\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSens (dB @ 1w\/1m): 78.5\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eXmax: 16mm\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003eSubwoofer Measurements:\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eDisplacement (Inches): 0.05 cu ft\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eDepth (Inches): 4.0\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCutout (Inches): 5.52\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMotor Diameter (Inches): 5.51\"\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003ePorted Enclosure Specs:\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003ePorted Enclosure Size: .3 cu ft\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRecommended Port Area: 4 sq in\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRecommended Port Tuning: 32hz\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003eSealed Enclosure Specs:\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSealed Enclosure Size: .15 cu ft\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e4th Order Enclosure Specs:\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003e4th Order Sealed Side: Not Recommended\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003e4th Order Ported Side: Not Recommended\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUNDOWN AUDIO","offers":[{"title":"Default Title","offer_id":52223619596589,"sku":"X6.5 v.2 S4","price":129.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/0805\/3037\/files\/3021984.jpg?v=1784088317","url":"https:\/\/audiosavings.com\/products\/lowersubstitute-e6429","provider":"Audio Savings","version":"1.0","type":"link"}