Monoprice

Monoprice 141384 12AWG CL2 Rated Speaker Wire

Name: Monoprice 141384 12AWG CL2 Rated Speaker Wire
Brand: Monoprice
SKU: 141384

100-foot 4-conductor 12AWG speaker wire with oxygen-free copper and CL2-rated jacket for clean in-wall installations.

$77.14*$139.65Save 44%

*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice 141384 is a 100-foot spool of 12AWG, 4-conductor speaker wire designed for permanent audio installations. Built with oxygen-free pure bare copper conductors, it delivers low-resistance signal transmission that preserves audio clarity across the full length of a run. The CL2-rated PVC jacket meets fire safety standards for installation inside residential walls and ceilings, eliminating the need for separate conduit and simplifying the wiring process for whole-home audio systems, home theaters, and multi-room speaker setups.

The 4-conductor configuration is what sets this cable apart from standard 2-conductor speaker wire. Each cable carries two independent pairs of conductors, allowing a single run to service two speakers — ideal for ceiling speaker installations or distributed audio zones where running multiple cables would be impractical. The 12AWG gauge is heavy enough to support long runs with minimal signal degradation, making it suitable for larger homes and commercial spaces. The black PVC jacket is durable and clearly color-coded internally to simplify identification during termination. While the thicker gauge requires a bit more effort to strip, bend, and route compared to lighter wire, the trade-off is a robust, long-lasting installation that maintains audio performance over time.

Key Features

Features 4 conductors made of high purity (greater than 99.95 percent pure), oxygen-free bare copper.

Pure Bare Copper is a superior conductor to the copper clad aluminum (CCA) conductors used in most other inexpensive speaker wire.

Using Pure Bare Copper speaker wire ensures that the total load put on the amplifier remains as close as possible to the impedance curve of your speakers.

Each conductor is jacketed with color-coded PVC for easy polarity identification.

CL2 rating indicates that the cable complies with fire safety and insurance requirements, making it safe for use inside the walls of residential class buildings.

Specifications

Brand

Monoprice

Model

141384

Wire Gauge

12AWG

Conductors

Conductor Material

Oxygen-Free Pure Bare Copper

Jacket Rating

CL2 Rated PVC

Length

100 feet

Color

Black

Pros & Cons

👍 Pros

Oxygen-free pure bare copper conductors deliver reliable, low-resistance signal transmission
CL2-rated jacket allows code-compliant in-wall installation without conduit
4-conductor design lets a single cable serve two speakers, reducing the number of cable runs needed
12AWG heavy gauge supports long runs with minimal signal loss
100-foot length provides plenty of cable for most residential installation projects

👎 Cons

12AWG 4-conductor cable is relatively thick and stiff, making it harder to route through tight spaces and around corners
Black jacket may be visible against light-colored walls or baseboards if not concealed
Not rated for outdoor or direct-burial use without additional protection
100-foot spool may be more than needed for single-room setups, with no shorter length option in this model
Bare wire ends require manual stripping and termination — no pre-terminated connectors included

Frequently Asked Questions

What does the CL2 rating on this Monoprice speaker wire mean?

The CL2 rating indicates that the PVC jacket meets fire safety standards for in-wall installation, so it can be safely run inside walls without the need for additional conduit in residential settings.

Why does this cable have four conductors instead of the standard two?

The 4-conductor design allows you to run a single cable to power two separate speakers — one pair of conductors per speaker — which simplifies wiring in whole-home audio, ceiling speaker, and zone audio installations.

What is the benefit of oxygen-free copper in this speaker wire?

Oxygen-free pure bare copper reduces oxidation and corrosion over time, maintaining consistent signal conductivity and audio clarity throughout the life of the installation.

Is 12AWG appropriate for long speaker runs?

Yes, 12AWG is a heavy gauge that minimizes signal loss over longer distances, making it well suited for runs up to 50 feet or more per speaker without noticeable degradation in sound quality.

Can this wire be used outdoors?

The CL2-rated PVC jacket is designed for in-wall use. While it provides some protection, it is not rated for direct outdoor exposure or burial, so outdoor runs would require additional conduit or weather-rated protection.