Liberty 14-gauge 2-conductor Unshielded Speaker Wire Plenum-rated (White/500 feet)

Product Overview

The Liberty AV 14-2C-P-WHT-500 is a 500-foot reel of 14 AWG 2-conductor plenum-rated speaker wire designed for commercial AV installations in air-handling spaces. This CMP-rated cable meets NEC and CEC requirements for plenum environments, making it the correct choice for in-ceiling and in-wall speaker runs in commercial buildings. The white PVC jacket integrates cleanly with ceiling tile systems and provides visual identification in multi-wire cable runs. This cable is well-suited for 70V distributed audio systems, standard 8-ohm speaker installations, and Class 2/Class 3 low-voltage power applications.

Product Description

The 14-2C-P-WHT-500 uses stranded annealed bare copper conductors to maintain low DC resistance across long runs, which is critical for maintaining consistent audio levels in distributed commercial speaker systems. The conductors are covered with plenum-rated PVC alloy insulation and the pair is twisted to reduce crosstalk and electromagnetic interference in shared conduit or cable tray environments. The outer jacket carries a NEC CMP (Communications Multipurpose Plenum) rating, satisfying fire code requirements for cables routed through air-return plenums without conduit protection.

At 14 AWG, this cable handles the current demands of 70V speaker distribution systems across long horizontal runs—up to several hundred feet depending on load—without significant power loss. The 500-foot reel format reduces splice points in single-room or multi-zone installations, and the white jacket color makes it easy to distinguish from 16 AWG or 18 AWG runs in the same ceiling space. Compliance with RoHS and CEC CMP FT6 standards ensures the cable meets both domestic and Canadian commercial installation requirements. This is a general-purpose commercial-grade speaker cable appropriate for boardrooms, conference rooms, training rooms, and houses of worship.

Key Features

• 14 AWG Stranded Conductors — Annealed bare copper construction minimizes DC resistance for longer speaker runs without signal degradation.
• NEC CMP Plenum Rating — Approved for installation in air-handling spaces and return-air plenums without conduit, per NEC Article 800.
• CEC CMP FT6 Rated — Meets Canadian electrical code requirements for plenum cable installations.
• Twisted, Unshielded Construction — Pair twisting reduces common-mode noise pickup while keeping diameter and weight low for easier pulls.
• Plenum-Rated PVC Alloy Jacket — Low-smoke, flame-retardant outer jacket suitable for open-air plenum spaces.
• White Jacket Color — Simplifies cable identification in ceiling spaces with multiple AWG sizes or circuit types.
• 500-Foot Reel Format — Reduces mid-run splices and supports continuous runs in large commercial spaces.
• RoHS Compliant — Meets EU Restriction of Hazardous Substances directive for environmentally responsible installations.
• Suitable for 70V and 8-Ohm Systems — Handles both distributed 70V audio and standard low-impedance speaker connections.

Typical Applications

• Boardroom
• Conference Room
• Huddle Room
• House of Worship
• Government Space
• Commercial Meeting Space
• Multi-Purpose Room
• All-Hands Room
• Training Room
• Auditorium

Technical Specifications

Frequently Asked Questions

What is the difference between CMP plenum-rated and CMR riser-rated speaker wire?

CMP (plenum) cable uses a low-smoke, flame-retardant jacket rated for use in air-handling plenum spaces without conduit. CMR (riser) cable is rated for vertical runs between floors but cannot be used in open plenum spaces. Use CMP whenever the cable path passes through an air-return ceiling plenum, as required by NEC Article 800.

Is 14 AWG the right gauge for my commercial speaker installation?

14 AWG is appropriate for runs up to approximately 100–150 feet on 8-ohm speakers and for extended runs in 70V constant-voltage systems where distributed power loss must be kept low. For shorter runs under 50 feet on 8-ohm loads, 16 AWG is typically sufficient. Consult your system design calculations for specific run-length and impedance requirements.

Can this cable be run in the same ceiling space as Cat6 and other low-voltage cables?

Yes. This cable is plenum-rated and approved for mixed low-voltage cable installations in air-handling spaces. It is advisable to maintain separation from power cables per NEC guidelines to minimize interference, but it can share cable trays or J-hooks with other CMP-rated low-voltage cables.

Is this cable compatible with standard speaker connectors and terminal blocks?

Yes. The stranded copper conductors terminate cleanly in standard spring-clip terminals, binding posts, and AV contractor-grade connector blocks. Strip 3/8 to 1/2 inch of jacket using a standard wire stripper set for 14 AWG.

Does this cable meet Canadian installation requirements?

Yes. The CEC CMP FT6 rating satisfies Canadian Electrical Code requirements for plenum cable installations, making it suitable for commercial AV projects in both US and Canadian jurisdictions.

What is the minimum bend radius for in-wall and in-ceiling installation?

Follow standard practice for speaker wire: maintain a minimum bend radius of at least 4 times the cable diameter during installation pulls, and avoid tight corners that could kink the conductors. Plenum cable should be conditioned at room temperature before installation and should not be pulled in temperatures below 32°F (0°C).

What warranty and support does Liberty AV provide?

Liberty AV Solutions cables are backed by the manufacturer's standard warranty against material and workmanship defects. Contact Liberty AV Solutions or your authorized distributor for warranty terms and technical support on commercial installations.