{"product_id":"mercury-2-core-speaker-cable-1-85mm-100m-reel-transparent-with-red-polarity-marker","title":"Mercury 2 Core Speaker Cable 1.85mm² 100m Reel - Transparent with Red Polarity Marker","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury is a 2 core speaker cable with a 1.85mm² cross-sectional area per conductor, supplied on a 100m reel. Each core comprises 7 bundles of mixed copper and copper-clad aluminium strands (15 x 0.10mm copper + 13 x 0.12mm CCA per bundle), enclosed in a transparent PVC sheath. One core is marked with a red polarity indicator running the length of the cable to simplify phase-correct wiring during installation.\u003c\/p\u003e\n\u003cp\u003eDesigned for permanent audio installations in commercial venues, home theatre systems, multi-room audio distribution and PA setups, the cable handles continuous loads up to 15A maximum per core. The 1.85mm² cross-section supports speaker runs up to 20-30m for 8-ohm passive speakers without significant signal loss, making it suitable for distributed audio zones in larger properties or small to medium commercial installs. The transparent sheath allows visual inspection of conductor integrity without stripping back the cable.\u003c\/p\u003e\n\u003cp\u003eThe combination of pure copper and copper-clad aluminium stranding balances conductivity with flexibility and weight. Pure copper strands provide the primary signal path, while the CCA strands contribute mechanical strength and reduce the overall weight of a 100m reel compared to solid copper alternatives. The 4.8mm x 9.6mm flat profile sits neatly under carpets, along skirting and through conduit without creating a pronounced ridge. The red polarity stripe ensures consistent phasing across multiple speaker pairs when wiring in parallel or series configurations.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity\u003c\/td\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e100m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor\u003c\/td\u003e\n\u003ctd\u003eCopper\/Copper Clad Aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA\u003c\/td\u003e\n\u003ctd\u003e1.85mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrands\u003c\/td\u003e\n\u003ctd\u003e2 x (7 x (15 x 0.10mmØCu + 13 x 0.12mmØCCA))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.8 x 9.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacked quantity\u003c\/td\u003e\n\u003ctd\u003e4 reels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e15A max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speaker run length does this cable support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1.85mm² cross-section supports typical 8-ohm passive speaker runs up to 20-30m without significant signal loss. For longer runs or lower impedance speakers (4-6 ohms), stepping up to a larger CSA cable may be needed to avoid power drop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the red polarity stripe indicate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe red stripe runs along one of the two cores to mark polarity (positive or negative terminal). This ensures consistent phase wiring when connecting multiple speakers in parallel or series, preventing phase cancellation issues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used outdoors or in damp environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe cable has no specific IP rating and is designed for dry indoor installations. For outdoor speaker runs or damp environments (garden audio, poolside), use a cable with UV-resistant and moisture-resistant sheathing rated for outdoor use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the cable sold — by the metre or as a full reel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is supplied as a full 100m reel. The packed quantity of 4 reels refers to the carton configuration for bulk orders. Individual reels are sold separately.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313496482059,"sku":"801.882UK","price":93.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/801882UK_LD1_71cb02ee-fc3c-4d51-abf8-94e6a988409f.jpg?v=1715194601","url":"https:\/\/niori.co.uk\/products\/mercury-2-core-speaker-cable-1-85mm-100m-reel-transparent-with-red-polarity-marker","provider":"Niori","version":"1.0","type":"link"}