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

Overview

The C2G 40537 is a 250-foot speaker wire designed for professional audio and video installations, especially in commercial and educational environments. It features 18 AWG copper conductors arranged in a twisted pair configuration to maintain clear and reliable signal transmission over long distances. The plenum-rated CMP jacket allows safe installation in air handling spaces and within walls, meeting strict fire safety codes without the need for additional conduit.

This wire is color-coded with red and black conductors to simplify wiring and reduce errors, while footage markers printed along the cable length help installers measure and manage runs efficiently. It is well suited for classrooms, conference rooms, and commercial buildings where dependable, code-compliant audio wiring is essential.

Key features

• Twisted pair 18 AWG copper conductors that deliver consistent audio quality over long distances
• Plenum-rated CMP jacket designed for safe use in air handling spaces and inside walls
• Color-coded red and black conductors to make installation straightforward and reduce wiring mistakes
• Footage markers printed along the cable length to assist with precise measurement and cable management
• 250-foot length provides ample cable for extensive or complex installations without splicing

Key specs

• Length: 250 feet
• Conductor gauge: 18 AWG
• Conductor type: Copper, twisted pair
• Jacket rating: Plenum-rated CMP
• Color coding: Red and black conductors
• Safety compliance: Suitable for installation in air handling spaces

Connectivity and compatibility

This speaker wire is compatible with a wide range of professional audio equipment, including amplifiers, speakers, and AV receivers that accept 18 AWG wiring. Its twisted pair design helps reduce interference, making it a reliable choice for environments where signal clarity is critical. The plenum rating ensures it meets building codes for commercial and educational installations, supporting safe and code-compliant setups.

Ideal uses and environments

The C2G 40537 fits well in commercial buildings, schools, conference rooms, and other professional settings where long cable runs are necessary. Its fire-safe jacket and clear identification features make it a strong choice for installers who need to meet strict safety standards while maintaining high audio performance. This wire is a practical solution for anyone setting up permanent or semi-permanent sound systems in spaces that require reliable, code-compliant wiring.