Premium quality shielded speaker cable for permanent installation in conduit, walls, or ceilings. Gepco permanent installation speaker cable is made from only high grade compounds and materials. Each conductor is constructed from tinned copper to protect against oxidization and improve cable termination. For the dielectric, premium grade PVC is used. Compared to low-grade types, Gepco's PVC compound has both exceptional electrical and mechanical characteristics, ensuring improved cable termination and better signal transfer. For added noise rejection and suppression, the conductors are shielded with a durable foil/mylar and tinned copper drain wire.