SCP 14/2OFCTC-HD-WTD-1000 — ProSeries indoor/outdoor tinned copper speaker cable
The SCP 14/2OFCTC-HD-WTD-1000 is a professional-grade, 2-conductor 14 AWG speaker cable from SCP's ProSeries ProGrade HD Indoor/Outdoor line, supplied on a 1000 ft (305 m) wood spool. Engineered for demanding commercial and residential AV installations, it combines oxygen-free copper conductors with a tinned copper coating to resist corrosion in outdoor and high-humidity environments. A UV-resistant heavy-duty PVC jacket allows the cable to run seamlessly from indoor risers to exposed exterior locations without the need for cable transitions. With UL CMR riser and EN50575 Dca EuroClass ratings, it meets North American and European fire-safety requirements, making it a reliable choice for permanent speaker runs in home theaters, commercial audio systems, and semi-permanent outdoor setups.
Tinned OFC Conductors for Outdoor Durability
Standard oxygen-free copper corrodes when exposed to moisture, salt air, or humidity, causing increased resistance and degraded audio quality over time. This cable uses 105-strand OFC conductors coated with a thin layer of tin, which acts as a barrier against oxidation. In practice, this means speaker runs that pass through exterior walls, run under eaves, or serve poolside and garden audio zones remain electrically stable for years without the resistance creep or intermittent connections that plague uncoated copper in the same conditions. The high strand count (105 strands per conductor) also gives the cable exceptional flexibility, making it easier to route through tight conduit bends without kinking.
Dual-Market Fire Compliance: UL CMR + EN50575 Dca
Carrying both the North American UL CMR (Riser / FT4) rating and the European EN50575 EuroClass Dca-s3,d2,a3 certification, this cable satisfies the fire-safety requirements for permanent in-wall speaker runs on both sides of the Atlantic. UL CMR permits installation in vertical riser pathways between floors without conduit — a common requirement in commercial builds and multi-dwelling units. The Dca EuroClass rating covers installations in European projects where CPR (Construction Products Regulation) documentation is required. For integrators working across markets, or importing finished systems into the EU, a single cable SKU covers both jurisdictions, simplifying procurement and compliance paperwork.
UV-Resistant Jacket for True Indoor/Outdoor Routing
Many speaker cables rated for 'outdoor use' still require a protective conduit when exposed directly to sunlight, because standard PVC degrades and cracks under prolonged UV exposure. The heavy-duty UV-resistant PVC jacket on this cable is formulated to withstand direct sunlight for the expected service life of a permanent installation. This means a single cable run can exit a wall, travel across a façade or soffit, and reach an outdoor speaker without switching to a different cable type at the threshold — eliminating a splice point that would otherwise be a long-term reliability risk. The white jacket colour also keeps heat absorption low in sunny environments.
Twisted-Pair Construction Reduces Interference
The two conductors are twisted together at 30 twists per metre (33 mm lay length), which gives this cable better immunity to electromagnetic interference (EMI) than parallel or flat speaker cables. In installations where speaker cables run near HVAC equipment, lighting dimmers, or data cabling, the twisted geometry causes any induced noise to appear equally on both conductors and cancel at the amplifier's differential input — keeping background hiss and hum out of the audio signal. This makes the cable well suited for commercial spaces such as restaurants, retail stores, and conference rooms where the cable infrastructure is dense and interference sources are common.
1000 ft Wood Spool for Large-Scale Projects
Supplied on a 1000 ft (305 m) wood spool — rather than a shorter pull box — this SKU is sized for commercial projects where multiple long speaker runs are needed in a single session. The large spool format minimises the number of mid-run splices required, which are each a potential failure point and a time cost during installation. Wood spools are compatible with standard spool holders for controlled, tangle-free payout on the job site. The spool is made from recyclable materials, aligning with green-building and sustainability commitments that are increasingly part of commercial project specifications.
