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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Directionality of wire posted by Klaus on November 10, 2004 at 00:54:17:
Taken from Soundstage archives:"On the subject of directionality, Jerry (Jerry Ramsey of Audio Magic) has an opinion which, taken in the context of what all these cable makers have been saying so far, sounds perfectly reasonable even though I had never thought of it that way. He claims -- and extensive listening tests with an experienced panel were used to verify this -- that cables become directional simply through use. He offers that verification of this phenomenon is easily duplicated by anyone interested. All that’s required are cables of truly symmetrical design where the shield construction is identical on both ends. Simply reverse the cables after they’ve been in the system for an extended period of time. Jerry suggests that the sonics will immediately and perceptibly suffer until the cable re-settles in the new direction. This requires another break-in period equal in length to the original one. This process of reversing a cable’s burned-in sonic directionality can be continued ad infinitum. The reason Audio Magic uses directional markers in their symmetrical designs is not to suggest that the cables are delivered directional. It’s simply to remind a customer about which end is which should he rewire his system by swapping components or re-siting his audio rack.
Jerry chuckled reminiscing about the early days when directionally marked cables first hit the scene. Pretty soon consumers acted as though cables without directional arrows on their jackets weren’t high-end any longer. Responding to this trend, a custom of directionalizing cables has taken hold of the industry ever since regardless of the, at least based on this inquiry, overwhelming absence of any available scientific documentation on the subject"
And here's an excert taken from http://www.aes.org/sections/pnw/pnwrecaps/2000/lampen/
"Directionality, or the idea that electricity flows better in one direction through a cable than the other, is a common concept among certain self-identified audiophiles. Belden did a double-blind test for cable directionality in conjunction with an audiophile magazine. The end result was perfectly random. Belden is still happy to manufacture and sell directional cables to enthusiasts. They make up a long length of cable, cut it in segments, identify the ends of the segments so they know how it came off the spool (length A->B, length B->C, length C->D, etc), and then let the customer identify by careful listening which direction is "better". Over thousands of cables sold, the chosen "best" signal flow is random, for segments cut from the same spool! "
I think that we should distinguish between induced and inherent directionality. I believe that the former exists.
beleiving is seeing ;)
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Follow Ups
- Can wire become directional? - driver8 07:40:36 11/10/04 (0)
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