SCP 16/2OFCTC-HD-WTD — ProSeries indoor/outdoor 2-conductor speaker cable
The SCP 16/2OFCTC-HD-WTD is a ProSeries tinned copper speaker cable engineered for professional audio installations that span both indoor and outdoor environments. Targeting residential integrators, commercial AV contractors, and system installers, it delivers clean speaker-level audio for home theater, multi-room audio, and permanent commercial sound systems. The 65-strand OFC tinned conductor construction resists oxidation over time, while the UV-resistant HD PVC jacket handles exposure to sunlight without cracking or degrading — making it equally at home in in-wall risers and outdoor runs. Dual compliance with North American UL CMR and European EN50575 Dca ratings makes it a single SKU that works across markets.
Tinned OFC Conductors Prevent Oxidation
Standard bare OFC conductor surfaces begin to oxidise when exposed to moisture and outdoor air, gradually increasing resistance and degrading high-frequency response. Here, each of the 65 copper strands is individually tin-plated before stranding, creating a physical barrier against oxidation. In practice this means that a run installed in an outdoor wall cavity, a covered patio, or a humid commercial space retains its original conductivity and tonal balance years after installation — reducing service calls and extending the life of the installation well beyond what bare-copper equivalents typically achieve.
True Indoor/Outdoor Dual Rating
Many speaker cables are rated either for in-wall use or outdoor use, but not both — which forces installers to plan cable transitions and use junction boxes mid-run. The 16/2OFCTC-HD-WTD carries UL CMR Riser (FT4, NEC CL3R/CL2R at 75°C) for in-wall and plenum-adjacent risers, combined with a UV-resistant HD PVC jacket that withstands prolonged direct sunlight without cracking or becoming brittle. The result is a single cable that can leave the amplifier inside a wall cavity, pass through an exterior wall, and continue to an outdoor speaker — all without a splice or rating conflict. This simplifies design, reduces material SKUs on the job, and eliminates the liability of mixing rating classes on the same signal path.
EN50575 Dca EuroClass Certification
For projects in Europe or the UK, building codes under the Construction Products Regulation (CPR) require cables in fixed installations to carry a declared fire performance class under EN50575. This cable holds EuroClass Dca-s3,d2,a3 — meaning limited flame spread, limited smoke production (s3), limited droplets (d2), and limited acidity (a3). A Declaration of Performance (DoP) is available directly from SCP, making compliance documentation straightforward for inspectors and specifiers. Having both a North American UL CMR and a European Dca rating on one SKU is a practical advantage for distributors serving multiple markets with a single stock line.
Reelex II Tangle-Free Box Packaging
The cable is packed in SCP's Reelex II figure-eight coil box, which dispenses from the centre of the coil without rotation. Unlike a standard reel or a simple box pull, the Reelex format eliminates the memory loops and kinks that slow installers and can cause the cable to spring out of conduit. On a 500 ft pull through multiple bends, this saves meaningful time and reduces the risk of jacket abrasion from fighting the cable. The compact 350 × 260 × 350 mm box also stores efficiently on a van shelf or job-site storage rack.
