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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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In Reply to: Anyone tried using standard sheilded TV cable to make single-ended RCA IC's? posted by HGS on January 15, 2007 at 18:00:13:
And they sound terrible in most cases.Many of the coax cables intended for TV use use aluminum foil or a combination of aluminum braid and foil as a shield. The aluminum will not make a good connection to an RCA ground lug, in fact, without special solder and/or special techiques, you can not make a good solder joint between aluminum and the typical brass of an RCA ground lug.
This makes the cables made from TV coax and used in an audio system not only bad sounding, but DANGEROUS! The ground connection may seem to exist at first, but even if it were low resistance initially, it will go bad as the aluminum oxidizes. When the ground connection goes bad on a single-ended audio IC (those with RCA's), it is possible for a VERY large "hum" to be generated in the system, or even a full level 'buzz' that damages speakers and amps because it is so loud.
This holds true for the types of RCA's that screw-on, or use set screws to make contact with the wires inside the cable.
So aside from the issue of how well they would work (sound), they are extremely dangerous, and NOT recommended.
See:
The skinny on RG-6 coaxial cables:
http://www.AudioAsylum.com/audio/cables/messages/25155.html
which discuses the issues of using coaxial cables for audio purposes, and:
http://www.geocities.com/jonrisch/i1.htm
which dicusses the materials issues of audio interconnects.
Jon Risch
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Follow Ups
- Yes - Jon Risch 19:42:30 01/21/07 (0)
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