{"product_id":"dd-audio-718f-d4","title":"DD Audio 718f-D4","description":"\u003cp\u003eThe 700f series offers some of DD AUDIO's most revered Power Tuned subwoofers, engineered for exceptional power handling with hardcore bass in mind.\u003cbr\u003e\u003cbr\u003eREVISION 'F'\u003cbr\u003ePrevious revisions of the 600, 700, and 800 series subwoofers made them bigger and better, and this latest 'f' revision has given them precisely engineered thermal cooling improvements that are critically important, along with some design work that is just plain advanced.\u003cbr\u003e\u003cbr\u003eTHERMAL TRANSFER\u003cbr\u003eThe 'f' revision subwoofers have been specifically designed to provide better thermal transfer. A two-stage aluminum heat dissipation system works to transfer heat from the soft components to open chambers where a free-air cooling system pushes cooler air to displace this heat.\u003cbr\u003e\u003cbr\u003eGREATER XMAX\u003cbr\u003eBy increasing the top plate thickness, the voice coil winding was lengthened to keep more coil wire within the gap. More coil wire surrounding both the motor steel and billet aluminum pulls more heat from\n\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e- 18″ subwoofer\u003cbr\u003e- 3″ voice coil wound of Made in USA wire\u003cbr\u003e- 2x 4 ohms\u003cbr\u003e- alucast frame with dd-logos\u003cbr\u003e- power handling 1500 W RMS, 4500 W Peak\u003cbr\u003e- x-mech: 100 mm\u003cbr\u003e- x-max: +- 22 mm\u003cbr\u003eRe       3.891   [Ohms]\u003cbr\u003eFs        28.93   [Hz]\u003cbr\u003eZm       25.53   [Ohms]\u003cbr\u003eBL        17.64   [N\/A]\u003cbr\u003eQms    5.449\u003cbr\u003eQes     0.9796\u003cbr\u003eQts      0.8304\u003cbr\u003eVas      146.2   [liters]\u003c\/p\u003e","brand":"DD Audio","offers":[{"title":"Default Title","offer_id":53651797279061,"sku":"DD718f-D4","price":507.18,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/2245\/files\/DD-audio-718f-D4.png?v=1776139873","url":"https:\/\/www.autogarsas.lt\/en\/products\/dd-audio-718f-d4","provider":"AUTOGARSAS.LT","version":"1.0","type":"link"}