{"product_id":"sundown-audio-x18-v-4","title":"Sundown Audio X18 v.4","description":"\u003cp\u003eThe X v.4 series is the entry point into Sundown Audio's \"Ultra-High-Excursion\" suspension and basket designs.\u003c\/p\u003e\u003cp\u003eThey all feature our custom-designed and patented baskets (US patent numbers D691596, D691597, D691598, and D741841).\u003c\/p\u003e\u003cp\u003eWe combine these new platforms with a triple-stacked motor structure with a 225 mm (8.86 inch) diameter, featuring an extremely extended pole piece and extreme spacing (allowing up to 4 inches of p-p excursion before hitting the mechanical bottom). This motor drives a 4-layer flat aluminum coil with a 3-inch diameter, wound on a thick aluminum former, to incredible excursions.\u003c\/p\u003e\u003cp\u003eThis is the same coil design that was used in the past in the NS v.3 and Z v.5 series. It is a proven coil with enormous power potential. The combination of the coil and updated motor for the X v.4 series brings its performance in terms of motor power to about 85% of the level of the previous generation's Z v.5 series! This makes the X v.4 an incredible value.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe X series works in the same small enclosures you are accustomed to with Sundown Audio subwoofers, but can also handle enclosures that are up to about 50% larger than these if you want even stronger low-end extension. Due to its incredibly linear suspension, the X v.4 series is truly a different kind of woofer. They are designed for the LOWEST bass reproduction possible in a small enclosure, while also providing extremely low distortion levels.\u003c\/p\u003e\u003ctable\u003e\t\u003ctbody\u003e\t\t\u003ctr\u003e\t\t\t\u003cth\u003eT\/S SPECS\u003c\/th\u003e\t\t\t\u003cth\u003e\u003cstrong\u003eX V.4 18″ D1\u003c\/strong\u003e\u003c\/th\u003e\t\t\t\u003cth\u003e\u003cstrong\u003eX V.4 18″ D2\u003c\/strong\u003e\u003c\/th\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eRE (Ohms)\u003c\/td\u003e\t\t\t\u003ctd\u003e1.4\u003c\/td\u003e\t\t\t\u003ctd\u003e3.2\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eFS (Hz)\u003c\/td\u003e\t\t\t\u003ctd\u003e26.650\u003c\/td\u003e\t\t\t\u003ctd\u003e28.207\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eVAS (L)\u003c\/td\u003e\t\t\t\u003ctd\u003e130.302\u003c\/td\u003e\t\t\t\u003ctd\u003e109.935\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eQes\u003c\/td\u003e\t\t\t\u003ctd\u003e0.526\u003c\/td\u003e\t\t\t\u003ctd\u003e0.657\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eQms\u003c\/td\u003e\t\t\t\u003ctd\u003e2.793\u003c\/td\u003e\t\t\t\u003ctd\u003e3.091\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eQts\u003c\/td\u003e\t\t\t\u003ctd\u003e0.442\u003c\/td\u003e\t\t\t\u003ctd\u003e0.542\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eLe (mH)\u003c\/td\u003e\t\t\t\u003ctd\u003e \u003c\/td\u003e\t\t\t\u003ctd\u003e \u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eBL (NA)\u003c\/td\u003e\t\t\t\u003ctd\u003e14.543\u003c\/td\u003e\t\t\t\u003ctd\u003e20.854\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eMms (Grams)\u003c\/td\u003e\t\t\t\u003ctd\u003e474.114\u003c\/td\u003e\t\t\t\u003ctd\u003e504.115\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eCms (uM\/N)\u003c\/td\u003e\t\t\t\u003ctd\u003e75.224\u003c\/td\u003e\t\t\t\u003ctd\u003e63.154\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\t\u003ctr\u003e\t\t\t\u003ctd\u003eSens (dB @ 1w\/1m)\u003c\/td\u003e\t\t\t\u003ctd\u003e88.6dB\u003c\/td\u003e\t\t\t\u003ctd\u003e87.6dB\u003c\/td\u003e\t\t\u003c\/tr\u003e\t\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Sundown Audio","offers":[{"title":"18 inches \/ Sundown Audio \/ D1","offer_id":58741419311435,"sku":null,"price":1549.0,"currency_code":"EUR","in_stock":true},{"title":"18 inches \/ Sundown Audio \/ D2","offer_id":58741419344203,"sku":null,"price":1549.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/3242\/5291\/files\/40f16760-cb8262_05a8b44b34a544bd820af0f703918051_mv2.webp?v=1791402976","url":"https:\/\/www.styleandaudio.de\/en\/products\/sundown-audio-x18-v-4","provider":"Style and Audio","version":"1.0","type":"link"}