{"product_id":"mercury-heavy-duty-transparent-speaker-cable-2-x-123-100m-reel","title":"Mercury Heavy Duty Transparent Speaker Cable 2 x 123 - 100m Reel","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Mercury Heavy Duty is a 2-core transparent speaker cable with a 1.17mm² cross-sectional area, supplied on a 100m reel. Each core combines 21 strands of 0.10mm copper with 20 strands of 0.12mm copper-clad aluminium (CCA) in a hybrid conductor structure, rated for a maximum continuous current of 10A. A red polarity indicator runs through one conductor to maintain phase consistency across long runs.\u003c\/p\u003e\n\u003cp\u003eDesigned for medium-power distributed audio installations in commercial, hospitality and residential settings, the cable suits ceiling speaker systems, background music zones and multi-room audio where runs exceed 20-30m. The transparent PVC sheath allows visual inspection of terminations and conductor integrity without needing to strip the cable back, which can save troubleshooting time on installed runs.\u003c\/p\u003e\n\u003cp\u003eThe hybrid copper\/CCA construction balances conductivity with weight and cost for runs where pure oxygen-free copper would be over-specified. The 4.5 x 9.0mm flat profile sits neatly under carpet or behind skirting and the flexible stranding allows the cable to be dressed around corners and through conduit without kinking. The 100m reel length covers typical zoned installations without mid-run joins.\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\u003e1.17mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrands\u003c\/td\u003e\n\u003ctd\u003e2 x (3 x (21 x 0.10mmØCu + 20 x 0.12mmØCCA))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.5 x 9.0mm\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\u003e10A 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's the difference between copper and CCA conductors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCopper-clad aluminium uses an aluminium core with a thin copper coating. Pure copper offers slightly lower resistance, but CCA reduces weight and cost while maintaining acceptable conductivity for distributed audio runs where the power demand is moderate. The hybrid construction in this cable balances both materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maximum run length does the 1.17mm² CSA support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum run length depends on the speaker impedance and amplifier power. For an 8Ω speaker load with typical distributed audio amplifiers (30-50W), runs up to 40-50m are acceptable before signal loss becomes audible. Higher impedance speakers (16Ω) tolerate longer runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the sheath transparent?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe clear PVC sheath allows you to visually inspect terminations and conductor condition without stripping the cable. This helps when troubleshooting installed runs or verifying polarity continuity through junction boxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cable be used outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The PVC sheath is rated for indoor use only. For outdoor speaker installations, use a UV-resistant outdoor-rated speaker cable with appropriate weatherproofing at terminations.\u003c\/p\u003e","brand":"AVSL","offers":[{"title":"Default Title","offer_id":45313496449291,"sku":"801.881UK","price":62.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/801881UK_LD1_b7758568-be30-4dfc-8756-b1e402a455b5.jpg?v=1715194599","url":"https:\/\/niori.co.uk\/products\/mercury-heavy-duty-transparent-speaker-cable-2-x-123-100m-reel","provider":"Niori","version":"1.0","type":"link"}