Monoprice 113718 Nimbus 14AWG 2-Conductor CMP Speaker Wire 500ft

The Monoprice Nimbus Series 113718 is a 14AWG, 2-conductor plenum-rated speaker wire designed for permanent audio installations where fire code compliance is required. Its CMP rating certifies that the cable jacket is constructed from fire-retardant materials that limit smoke and flame propagation, making it approved for use in plenum air-handling spaces, inside walls, and above drop ceilings in both commercial and residential buildings. The conductors are made from 100% pure oxygen-free bare copper, which provides low electrical resistance for clean, efficient audio signal delivery across the length of each run.

A key practical advantage of the Nimbus series is its jacket material, which Monoprice has engineered to be softer and more flexible than the rigid jackets found on many plenum-rated cables. This makes the wire easier to pull through conduit, around corners, and through tight wall cavities during installation. The two conductors are color-coded red and black for straightforward polarity identification, reducing wiring errors during multi-speaker setups. Supplied on a 500-foot spool, this wire is sized for whole-home distributed audio systems, commercial installations, or any project where multiple long runs are needed. Monoprice backs the cable with their lifetime warranty, providing long-term confidence in the product.