In most parts of the country, if a cable is installed "in-wall" i.e. behind the dry wall, without a conduit, it must meet a specific building code. For most residencies, this would be Class 3, or CL-3. An "in-wall" cable has a PVC jacket that meets or exceeds the CL-3 rating.
Typically, as only longer cables are used "in-wall" the shorter lengths of many models of cable in our product line (subwoofer, HDMI, Ethernet, for example) use a braided jacket (which is not CL-3 rated) and the longer lengths use a CL-3 rated PVC jacket. Internally, both versions of the cable are exactly the same. It's only a cosmetic difference.
10 years, 6 months ago
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Posted by:
AudioQuest Customer Service
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Irvine, CA