Monoprice

Monoprice 121551 14AWG 4-Conductor Burial Speaker Wire

4.8 (187 reviews)

Ensure Premium Audio Quality Outdoors The Monoprice 4 Conductor Speaker Wire is designed for exceptional audio performance in any environment. With its burial-rated, water-resistant jacket and 100% pure bare oxygen-free copper conductors, this 14AWG speaker wire delivers clear, reliable sound for...

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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Ensure Premium Audio Quality Outdoors

The Monoprice 4 Conductor Speaker Wire is designed for exceptional audio performance in any environment. With its burial-rated, water-resistant jacket and 100% pure bare oxygen-free copper conductors, this 14AWG speaker wire delivers clear, reliable sound for outdoor and indoor use. Enjoy worry-free conductivity and long-lasting durability.

Specifications:

  • Gauge: 14AWG
  • Conductors: 4 Color-Coded
  • Material: 100% Pure Bare Oxygen-Free Copper
  • Jacket: Burial Rated, Water-Resistant
  • Length: 250 Feet

Key Features

Lifetime Warranty on ALL Cables: With Monoprice's Lifetime Warranty you can rest assured we stand behind our products and our customers.

Water resistant jacket provides years of outdoor worry free conductivity Burial Rated Speaker Wire

100% pure, bare, oxygen-free copper conductors

2 or 4 color-coded conductors

Available in various lengths and gauges

Specifications

Gauge
14AWG
Conductors
4-Conductor
Conductor Material
100% Pure, Bare, Oxygen-Free Copper
Jacket Type
Water Resistant
Rating
Burial Rated
Warranty
Lifetime Warranty

Pros & Cons

👍 Pros

  • Features a water-resistant jacket, ensuring years of worry-free conductivity when buried outdoors.
  • Rated for burial, making it ideal for permanent outdoor audio installations without concerns about environmental damage.
  • Constructed with 100% pure, bare, oxygen-free copper conductors for optimal signal transfer and clarity.
  • Includes 4 color-coded conductors, simplifying wiring and ensuring correct polarity for multi-speaker setups.
  • Backed by Monoprice's Lifetime Warranty on all cables, providing assurance in product quality and longevity.

👎 Cons

  • At 14AWG, while suitable for many applications, it may not be the thickest gauge available for extremely long runs or very high-power systems.
  • The wire's burial rating implies a rigid jacket, which might make it less flexible for intricate indoor wiring paths.
  • While it offers 4 conductors, some advanced audio setups might require more individual wires or specialized shielding.
  • The product focuses on outdoor durability and conductor quality, but specific signal interference rejection properties are not detailed.
  • Choosing the correct length and gauge from the available options requires careful planning to avoid unnecessary waste or signal degradation.

Frequently Asked Questions

Yes, the Monoprice 121551 speaker wire features a water-resistant jacket and is specifically rated for burial, making it suitable for outdoor use and direct burial installations.
Using 100% pure, bare, oxygen-free copper conductors helps ensure maximum conductivity and minimizes signal loss and degradation, which results in a clearer and more faithful audio reproduction.
"14AWG" refers to the American Wire Gauge, indicating the thickness of the wire. A 14AWG wire is suitable for many speaker applications, offering a good balance between signal integrity and flexibility for moderate lengths.
The 4-conductor design with color-coded wires simplifies the wiring of stereo speakers or multi-zone audio systems, allowing for correct polarity and efficient connection of two speakers with a single cable run.
This Monoprice 121551 speaker wire comes with Monoprice's Lifetime Warranty on all cables, providing peace of mind regarding its durability and performance.
The product features emphasize its pure copper conductors and water-resistant jacket for burial, but specific shielding characteristics for electromagnetic or radio frequency interference are not detailed.
While it is burial rated for outdoor use, its robust jacket makes it suitable for many in-wall installations. However, local building codes should always be checked for specific requirements for in-wall wiring.