Choose a lower-gauge, thicker conductor for longer runs or higher speaker loads, and consider higher strand counts when the installation requires easier bends and routing. Select two-conductor wire for standard speaker connections, or four-conductor wire when one cable needs to carry multiple speaker channels or separate conductors for the installation.

Plenum-rated flexible speaker wire is appropriate when an in-wall or above-ceiling route passes through a plenum air-handling space or the installation specification calls for CMP-rated cable. Its flexible construction supports easier routing around framing and other obstacles, while the plenum rating suits many in-wall, plenum, and riser applications.

Two-conductor flexible speaker wire carries one speaker channel, making it suitable for standard home-run connections from an amplifier or distribution point to an individual speaker. Four-conductor wire can carry two speaker channels in one run, which may simplify wiring for stereo zones or paired speakers, but the choice should follow the system design, speaker connections, and local code requirements.

Compare jacket construction for easy stripping, the required in-wall rating, and a color that helps identify connections during installation; plenum-rated options support projects that call for plenum or riser applications. For conductors, compare gauge, conductor count, and construction, such as stranded oxygen-free copper or solid and concentric long-grain copper, based on the installation layout and speaker connection requirements.