{"product_id":"flex-audio-16-4-outdoor-speaker-cable-4-core-lszh","title":"Flex Audio 16\/4 Outdoor Speaker Cable - 4 Core - LSZH","description":"\u003cp\u003eThe Flex Audio 16\/4 OFC External Speaker Cable 16AWG 4 Core is a professional-grade outdoor speaker cable built for permanent installations exposed to the elements, including garden audio, outdoor cinema setups, and any application where the cable run passes outside.\u003c\/p\u003e\n\u003cp\u003eConstructed with 99.9999% pure oxygen free copper conductors, this cable delivers the clean, low-resistance signal path that Hi-Fi and home cinema systems demand — without any compromise for outdoor use.\u003c\/p\u003e\n\u003cp\u003eThe UV-resistant black polyethylene (PE) outer sheath is weather resistant to ISO4892-3, making this cable a reliable long-term choice for exposed runs in gardens, outbuildings, soffits, and other external environments.\u003c\/p\u003e\n\u003cp\u003eWith four individually colour-coded cores, the cable supports bi-wiring or dual-zone speaker runs from a single external cable, keeping outdoor installations tidy and reducing the number of cable routes required.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor-Ready PE Sheath:\u003c\/strong\u003e UV-resistant black polyethylene outer sheath is weather resistant to ISO4892-3, protecting the cable against sun, rain, and temperature extremes in external installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen Free Copper:\u003c\/strong\u003e 99.9999% pure OFC stranded conductors minimise signal loss and maintain audio fidelity over long outdoor cable runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Core Configuration:\u003c\/strong\u003e Four colour-coded cores allow bi-wiring or two independent speaker zones to be served from a single cable, simplifying external routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLSZH Core Insulation:\u003c\/strong\u003e Individual conductor insulation is Low Smoke Zero Halogen for added safety in any enclosed sections of the run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEN50575 CPR Rated:\u003c\/strong\u003e Carries an Fca CPR classification, appropriate for external installation applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Rated from -20°C to 80°C, covering the full range of UK outdoor conditions and beyond.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QCS016\/4-EXT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge:\u003c\/strong\u003e 16AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cores:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stranded Pure Oxygen Free Copper (99.9999%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Size:\u003c\/strong\u003e 16AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor DC Resistance:\u003c\/strong\u003e \u0026lt;12.6 Ω\/km\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e LSZH, Ø2.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiller:\u003c\/strong\u003e Cotton Rope\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Sheath:\u003c\/strong\u003e UV Resistant External PE, Ø7.50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheath Colour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather Resistance:\u003c\/strong\u003e ISO4892-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour Code:\u003c\/strong\u003e Core 1 Black, Core 2 Red, Core 3 White, Core 4 Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 450\/750V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Voltage:\u003c\/strong\u003e 3000V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Resistance:\u003c\/strong\u003e \u0026gt;200 MΩ\/km\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Temperature:\u003c\/strong\u003e -20°C to 80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEN50575 CPR Class:\u003c\/strong\u003e Fca\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS2 Compliant:\u003c\/strong\u003e Yes (2015\/863)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eREACH Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flex Audio","offers":[{"title":"20M","offer_id":57124696031609,"sku":"16AWG-4C-20M-EXT","price":55.0,"currency_code":"GBP","in_stock":true},{"title":"50M","offer_id":57124696064377,"sku":"16AWG-4C-50M-EXT","price":139.0,"currency_code":"GBP","in_stock":true},{"title":"100M","offer_id":57124696097145,"sku":"16AWG-4C-100M-EXT","price":260.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0055\/9906\/8206\/files\/flex-audio-164-outdoor-speaker-cable-4-core-lszh-cables-flex-audio-699897.jpg?v=1776954045","url":"https:\/\/www.kbaudio.co.uk\/products\/flex-audio-16-4-outdoor-speaker-cable-4-core-lszh","provider":"K\u0026B Audio","version":"1.0","type":"link"}