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Monoprice

Monoprice 113723 16AWG Plenum Speaker Wire

★★★★★4.6 (962 reviews)

A 100-foot run of plenum-rated 16AWG speaker wire with pure bare copper conductors for safe, high-quality audio installations.

$39.29*$43.15Save 8%
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice 113723 Nimbus Series 16AWG Plenum Speaker Wire is engineered for audio installations where fire safety compliance is non-negotiable. Carrying a CMP (Communications Multipurpose Plenum) rating, this cable is approved for installation inside walls, above drop ceilings, and through other plenum air-handling spaces in both residential and commercial buildings. This makes it suitable for permanent in-wall speaker wiring in offices, conference rooms, retail spaces, classrooms, and homes where building codes require plenum-rated cabling.

The wire itself consists of two 16-gauge conductors made from high-purity oxygen-free bare copper, which provides excellent electrical conductivity and resists corrosion over time. The red and black color coding on each conductor eliminates guesswork when maintaining correct speaker polarity across multiple runs. What sets this cable apart from many plenum-rated alternatives is its jacket material — Monoprice has selected a compound that is noticeably softer and more flexible than the stiff jackets commonly found on CMP-rated wire, reducing installation effort and making it easier to route through conduit and around corners without kinking.

Key Features

The Plenum (CMP) rating indicates that the cable complies with fire safety and insurance requirements, making it safe for use inside the walls of residential and enterprise class buildings.

This speaker Wire | features conductors made of high purity oxygen-free bare copper.

Monoprice Plenum Speaker Wire | uses a high quality material that is soft -er and more flexible than on traditional plenum rated jackets.

Easily identifiable Red and Black conductors.

Specifications

Brand
Monoprice
Model
113723
Series
Nimbus Series
Rating
Plenum (CMP)
Gauge
16 AWG
Conductors
2-Conductor
Conductor Material
Oxygen-Free Bare Copper
Conductor Colors
Red and Black
Length
100 Feet
Jacket
Flexible Plenum-Rated Material

Pros & Cons

👍 Pros

  • CMP plenum rating meets fire safety and insurance requirements for in-wall and in-ceiling installation.
  • Oxygen-free bare copper conductors deliver superior signal transmission compared to copper-clad aluminum alternatives.
  • Softer and more flexible jacket than typical plenum cables, making installation easier in tight spaces.
  • Color-coded red and black conductors simplify correct polarity wiring.
  • 100-foot length is practical for most single-room or moderate-distance speaker runs.

👎 Cons

  • 16 AWG may not be sufficient for very long runs exceeding 50 feet to high-power speakers without signal loss.
  • Only available as a 2-conductor cable, so it cannot carry multiple speaker channels in a single run.
  • 100 feet may not be enough for whole-home audio installations requiring multiple long runs.
  • The wire is not rated for direct burial or outdoor use.

Frequently Asked Questions

Plenum (CMP) rated means the cable's jacket meets fire safety standards for installation in plenum spaces — areas inside walls, ceilings, and raised floors where air circulates in a building's HVAC system.
This wire uses 100% pure oxygen-free bare copper conductors, not copper-clad aluminum, which provides better conductivity and long-term reliability.
The two conductors are color-coded red and black for easy polarity identification during wiring.
The spool contains 100 feet of 16 AWG 2-conductor speaker wire.
Yes, Monoprice uses a softer, more flexible jacket material than traditional plenum-rated cables, making it easier to route through walls and conduit.

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