C2G 29207 500 ft Shielded Plenum Speaker Wire 18 AWG

Run speaker lines with the margin required for commercial audio installs. This 500-foot C2G shielded plenum speaker wire is built for long-distance signal distribution where clean audio and installation compliance are both non-negotiable. The 18 AWG conductor size supports dependable performance for distributed sound systems, paging, and multi-room audio layouts. Shielding helps reduce the impact of electrical noise and interference, which is especially important in dense equipment rooms, ceiling spaces, and pathways shared with other cabling. The plenum-rated jacket is designed for air-handling spaces, making it a practical choice for buildings that require compliant in-ceiling or in-wall cable routing. With a full 500-foot spool, this cable gives installers the length needed to complete larger projects without unnecessary splices. That matters when you want consistent signal quality from source to speaker and fewer points of failure across the run. For integrators and facilities teams, it is the kind of cable that supports a cleaner install and a more reliable audio system over time.