Conductor gauge affects the cable’s resistance and current-handling capacity: lower-gauge cable, such as 14 gauge, uses larger conductors and can help support longer runs or higher-power speaker systems, while 16-gauge cable often suits shorter runs and lower-power applications. When selecting unshielded speaker cables, consider the run length, speaker load, amplifier output, and whether you need two or four conductors for the installation.

Two-conductor unshielded speaker cable carries one speaker circuit, making it a common choice for connecting an amplifier or receiver to a standard speaker. Four-conductor cable carries two separate speaker circuits in one jacket, which can simplify wiring for dual-channel connections or speakers that use separate input pairs, depending on the system design.

Because unshielded speaker cables lack a protective shield, route them away from power wiring and other potential sources of electrical noise when practical, and cross unavoidable intersections at a right angle. Maintain separation from data, video, and control cables based on local code and project requirements, and use properly rated riser cable for the installation environment.

Buyers should compare unshielded speaker cables with jacket ratings such as CL3R and FT4, then select a rating suited to the planned installation and applicable code requirements. Oxygen-free bare copper, stranded conductors can support signal transmission for speakers, A/V receivers, and other professional sound equipment.