Home > Shop > Speaker Wire >

InwallTech® 14/2 500

InwallTech In-Wall Speaker Wire 14-2 500 ft. CL3
14 Gauge 2 Conductor 500 Feet Inwall Speaker Wire

More Images

Compare at: $310.00
Sale Price: $129.00
Sale Extended Thru: 3-19-18

Stock Status:
Out of Stock

Availability: Usually ships same day before 3 Eastern Time!
Product Code: 142500

Description Technical Specs

Applications: Sound/Audio, Indoor Applications, Intercom Systems

Rating: CM and CL3 (Ok for CL2 uses as CL3 is a stricter code common in commercial applications)

NEC Article 640: Audio Interconnects and Speaker Wires

Audio interconnect cables and speaker wires fall under Article 640, and so whether they can be installed in-wall or in other specific settings will depend on that article. Under NEC 640.21(C), these are in turn governed by Article 725, "Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits."

General installation of wiring, including installation inside of walls, is governed by 725.61(E), the principal features of which, for our purposes, are:

  • (1) CL2 and CL3 are always permitted;
  • (2) CL2X ("X" is a residential suffix, signifying a lower grade than plain CL2) or CL3X may be installed in raceways;
  • (3) CL2X or CL3X, if under 1/4 inch in diameter, may be installed in a 1 or 2 family residential dwelling without a raceway; if nonconcealed, it may also be installed in multifamily dwellings.

So, if a cable isn't marked CL2 or CL3, is it suitable for in-wall installation? It may be. The NEC allows cable of a higher rating to be substituted for a lower rating, and therefore, any of the following may be used: CM, CMP, CMR, CMG, CL2R, CL3R, CL2P, CL3P, PLTC. CMX also may be used where CL2X or CL3X is required.

In a plenum, 725.61(A) governs; CL2P or CL3P are required, and CMP is a permitted substitution.

A riser presents a bit different situation, governed by 725.61(B). If you're in a single or two-family dwelling, CL2, CL3, CL2X and CL3X may be used (and, of course, any of the substitutions listed above). In a commercial building or multifamily dwelling, any of those cables are permitted if they are installed in metal raceways or located in a fireproof shaft having firestops at each floor. In a commercial or multifamily building, without a raceway or shaft, if the vertical run of the cable penetrates more than one floor, CL2R or CL3R must be used (or any of these substitutes: CMR, CMP, CL2P, or CL3P).

Average Rating: 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
Great product January 25, 2016
Reviewer: Charles Parsons from Beaverton, OR United States  
Great cable, worked well for what I did, my only complaint is that I wish it came in a 250ft role, I probably have 250ft left over that I'm probably gonna end up throwing away.

Was this review helpful to you?

Browse for more products in the same category as this item:

Shop > Speaker Wire
Shop > Brands > InwallTech®