This cable was originally purchased to add a speaker to a 70 volt bathroom remodel. Having used it in several other applications since purchase, I'm happy to report that this cable has worked well no matter where I've used it. Each lead connects exclusively to a TOA or Bose 70V power amplifier and the sound quality of any speaker connected to this cable is as good as if I had chosen a more expensive brand cable. The outer sheath and the sheath surrounding each strand of wire is thick and appears strong. All of the cable runs I installed run through the attic where temperatures can range from -20°F to +100°F depending on the time of year. So far I haven't had any durability issues in these conditions so you can be assured that this material will hold up where it's needed.
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