14 Gauge 4-Conductor Speaker Wire 250ft - CL2 In-Wall Rated

Our review of this 14 gauge 4-conductor speaker wire finds it best for homeowners and installers who need a long, in-wall safe run for speakers or low-voltage lighting. The single biggest reason to buy is the combination of a full 250ft spool and a CL2-rated white outer jacket, which simplifies long speaker runs inside residential walls while keeping conductor identification easy thanks to color-coded inner jackets. For anyone wiring a mid-size home theater, multi-room audio or LED accent lighting, this cable balances value and practical safety features.

Key Features

• Oxygen-free copper: High-purity conductors deliver reliable conductivity and low loss for typical home audio setups.
• 250ft continuous spool: A full continuous length reduces the need for joins or splices on long speaker runs.
• 14 AWG, 4 conductors: Four individual conductors on a 14 gauge core provide flexibility for bi-amping, stereo runs, or running two pairs to separate speakers.
• CL2-rated outer jacket: The white PVC jacket meets in-wall fire safety standards for residential class buildings, easing installation concerns.
• Color-coded inner jackets: Each conductor is individually jacketed for fast polarity and channel identification during installation.

Who It's For

This cable is aimed at DIY homeowners, electricians, and AV installers who need a long, cost-effective in-wall speaker cable that meets safety codes and is easy to identify during termination. It suits mid-range home theaters, whole-house audio installs, and runs to outdoor speakers when routed through conduit or appropriate protective paths.

Those who need ultra-high-end audiophile wiring or specialized low-capacitance signal cable for pro studio work should consider cables designed specifically for those niche specs. Also, if you require individual waterproof jackets for exposed outdoor runs, a purpose-built outdoor-rated cable would be a better choice.

Pros & Cons

Pros

• High-purity oxygen-free bare copper conductors provide solid electrical performance for most home audio needs.
• Long 250ft spool reduces the need for splices and makes it economical for multi-room runs.
• CL2 white outer jacket allows safe in-wall installation in residential buildings and meets common fire-safety requirements.
• Color-coded inner jackets make polarity checks and channel assignments quick and reliable at the speaker or terminal ends.

Cons

• Some users report the jacket or inner conductors can be prone to minor unraveling during termination, so careful handling is recommended.
• Not specifically rated for direct burial or permanent exposed outdoor runs without additional protection.

Specifications

Brand	Monoprice
Conductor material	99.95% oxygen-free pure bare copper
Gauge	14 AWG
Conductors	4 conductors (individually color-coded)
Length	250 ft continuous spool
Outer jacket	White CL2-rated PVC

Our Verdict

This 14 gauge 4-conductor speaker cable is a practical, budget-friendly choice for in-wall residential audio and LED wiring where safety and ease of installation matter. With oxygen-free copper, color-coded conductors and a full 250ft spool, it offers good value for homeowners and installers who need reliable performance without specialty pricing.

Frequently Asked Questions

Is this cable safe for in-wall installation?
Yes. The outer white PVC jacket is CL2 rated, which meets common residential in-wall fire safety requirements.

Can I use it for outdoor speakers?
It can be used for outdoor speaker runs if routed through appropriate conduit or protected pathways, but it is not rated for direct burial or permanent exposed outdoor use.

Will this cable work for bi-amping or stereo pairs?
Yes. The four individual conductors allow flexible wiring for bi-amping, separate stereo pairs, or dual speaker runs on a single cable.