C2G 250ft Plenum-Rated 18 AWG Speaker Wire for Installations

The C2G 40537 is a 250-foot speaker wire designed specifically for professional audio and video installations in commercial and educational settings. It features 18 AWG copper conductors arranged in a twisted pair configuration, which helps maintain clear and reliable signal transmission over long distances. The wire is encased in a plenum-rated CMP jacket, making it safe to install in air handling spaces and within walls without requiring additional conduit, meeting strict fire safety standards.

This speaker wire is color-coded with red and black conductors to simplify installation and reduce the chance of wiring errors. It also includes footage markers printed along the length of the cable, allowing installers to measure and manage cable runs more efficiently. Whether you are setting up a classroom sound system, outfitting a conference room, or installing speakers in a commercial building, this wire provides a dependable and code-compliant solution.

Its combination of safety certification, clear identification, and length tracking makes the C2G 40537 a practical choice for anyone needing a high-quality speaker wire that meets industry standards and supports professional-grade audio setups.

Highlights:

• 250-foot length suitable for extensive installations
• 18 AWG twisted pair copper conductors for consistent audio quality
• Plenum-rated CMP jacket ensures fire safety in air handling spaces
• Color-coded conductors simplify wiring and reduce errors
• Footage markers help track cable length during installation