Monoprice 113725 16AWG CMP-Rated Plenum Speaker Wire

The Monoprice 113725 is a 500-foot spool of 16 AWG, 2-conductor speaker wire engineered specifically for plenum-space installations. In commercial buildings, the spaces above drop ceilings and below raised floors often serve as air return pathways, and building codes require any cabling run through these areas to use fire-retardant jackets that produce minimal smoke and toxic fumes if exposed to heat. This CMP-rated cable meets those UL plenum requirements, making it the correct choice for offices, schools, hospitals, retail stores, and other commercial environments where standard PVC-jacketed wire would violate code.

The conductors are 100% pure bare copper—not the cheaper copper-clad aluminum found in some budget cables—ensuring low electrical resistance, consistent signal delivery, and long-term reliability without corrosion concerns at connection points. At 16 AWG, this wire handles moderate run lengths comfortably for typical 8-ohm speaker installations. The color-coded conductors make it easy for installers to maintain consistent polarity across multiple speaker zones, reducing wiring errors during large projects. For contractors and AV integrators who regularly pull cable through plenum ceilings, this 500-foot bulk spool provides the quantity needed to wire multi-zone audio systems efficiently.