{"product_id":"dd-audio-608f-d4-8-dual-4-ohm-subwoofer","title":"DD Audio 608F-D4 8\" Dual 4-Ohm Subwoofer","description":"\u003cp\u003eThe 600 Series latest revision is a mean mother “f”. In the previous “e” revision they got bigger and better; and in this latest “f” revision they receive precision engineered, thermal cooling enhancements of major significance along with some design work that is literally cutting edge. DD is pushing the already highly efficient 600 subwoofers to meet our evolving performance standards to ensure longer periods of loud, continuous play.\u003c\/p\u003e\n\u003cp\u003eThe DD design philosophy is to prioritize the maximization of total efficiency: converting raw power to clean sound, while managing the intense heat created by this conversion. Given this mandate, the new 600 “f” revision receives a vented aluminum voice coil insert and vented, finned, aluminum heatsink to conduct and transfer heat away from the subwoofer’s most vulnerable components. As the increased power handling will undoubtedly bring with it greater demand for excursion, a taller surround, double stitched to a fiberglass loaded, non-pressed cone, adjoined to a voice coil featuring increased winding length with DD’s proven double layer spider, offers increased Xmax and elegant styling. The heat sink features beautifully carved, polished aluminum DD logos, and the motor is wrapped in a rubber boot with an all new embossed design.\u003c\/p\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003eThe \u003cstrong class=\"rQesXe MPyX\"\u003eDD Audio 608f-D4\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e is a high-performance \u003cstrong class=\"rQesXe MPyX\"\u003e8-inch, Dual 4-Ohm \"Power Tuned\" subwoofer\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e engineered by DD Audio to balance raw power handling with exceptional thermal efficiency. Positioned as a daily driver bordering on competition grade, the \"f\" revision introduces massive cooling upgrades and increased linear excursion.\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003eKey Design \u0026amp; Thermal Upgrades\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eAdvanced Heat Management:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Includes a dual-stage, cast aluminum finned heatsink and a vented aluminum voice coil insert to pull heat away from vulnerable internal parts.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eEnhanced Excursion:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Features a taller EROM rubber surround double-stitched to a fiberglass-loaded, non-pressed natural pulp cone for controlled, high-output bass.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eHeavy Duty Build:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Utilizes a rugged cast aluminum basket, a triple-layer deep bass spider system, an extended pole shoe, and an embossed motor boot wrapper.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003eTechnical Specifications\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003eThe official performance metrics and physical specs from the manufacturer DD Audio and verified dealers include:\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"Fv6NCb\"\u003e\n\u003ctable class=\"NRefec\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\"\u003eMetric\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\"\u003eSpecification\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003ePower Rating (RMS \/ Peak)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e1000 Watts \/ 3000 Watts\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eImpedance\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003eDual 4-Ohm (D4)\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eVoice Coil Diameter (VCD)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e2.5 inches\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eResonant Frequency (Fs)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e38 Hz\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eLinear Excursion (Xmax)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e18 mm\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eMechanical Excursion (Xmech)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e60 mm\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eEquivalent Volume (Vas)\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e7.4 Liters\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\"\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eQ Parameters\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"cOeeGf\" colspan=\"undefined\"\u003eQms: 7.76 | Qes: 0.5 | Qts: 0.46\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!--TgQPHd|||[[1,0,0,2,null,\u0026quot;\u0026quot;]]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" role=\"heading\"\u003eEnclosure and Mounting Dimensions\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMounting Cutout Diameter:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 7.37 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eMounting Depth:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 6.5 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eOverall Outer Diameter (with gasket):\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 8.5 inches\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eWoofer Displacement:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.07 cubic feet\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eSealed Enclosure Recommendation:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.4 to 0.8 cubic feet\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003ePorted Enclosure Recommendation:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e 0.75 to 1.25 cubic feet\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"uk-list uk-list-circle uk-list-primary uk-margin-remove-vertical\" id=\"template-KvXDY8lK#2\"\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eEROM surround\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eAluminum Heatsink and Thermal Transfer Insert\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eHigh-temp, 2.5”, voice coil\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eTriple Layer Deep bass, high excursion spider system\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eUnique glass fiber and natural pulp cone\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eBack plate coil gap venting\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eExtended pole piece\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"el-item\"\u003e\n\u003cdiv class=\"el-content uk-panel\"\u003eCast aluminum basket\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"uk-panel uk-margin-remove-vertical\" id=\"template-KvXDY8lK#10\"\u003e\n\u003cdiv class=\"uk-grid-margin uk-grid tm-grid-expand uk-child-width-1-1\"\u003e\n\u003cdiv class=\"uk-width-1-1\"\u003e\n\u003cdiv class=\"uk-panel uk-margin-remove-vertical\"\u003e\n\u003cdiv class=\"uk-grid tm-grid-expand uk-margin-remove-vertical\"\u003e\n\u003cdiv class=\"uk-width-1-2 uk-first-column\"\u003e\n\u003cdiv class=\"uk-panel uk-flex uk-flex-middle\"\u003e\n\u003cdiv class=\"uk-panel uk-width-1-1\"\u003e\n\u003cdiv class=\"uk-panel uk-margin\"\u003e\n\u003cdiv class=\"uk-grid tm-grid-expand uk-margin-remove-vertical\"\u003e\n\u003cdiv class=\"uk-grid-item-match uk-flex-middle uk-width-expand uk-first-column\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"uk-grid tm-grid-expand uk-child-width-1-1 uk-margin-remove-vertical\"\u003e\n\u003cdiv class=\"uk-grid-item-match uk-flex-middle uk-width-1-1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DD Audio","offers":[{"title":"Default Title","offer_id":67553692778800,"sku":"608F-D4","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/8758\/8144\/files\/608f-subwoofer-3qtr-top.jpg?v=1787185887","url":"https:\/\/stereo-warehouse.com\/products\/dd-audio-608f-d4-8-dual-4-ohm-subwoofer","provider":"Stereo Warehouse","version":"1.0","type":"link"}