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In Reply to: Re: directionality auditorium 23 posted by briggs on March 26, 2007 at 16:02:03:
HowdyYou are treading close to the line with this and previous posts. Many have claimed here that they hear a difference when swapping the direction of their speaker cables and polite discussions of why this might be are in order, but categorical denials of people's experience aren't welcome on this forum.
Also your post also glibly skips over the possibility that tho the cables may not be directional when unused, that over time with use they become directional and hence their recommendation for consistently.
-Ted
A Cables Asylum Moderator
Follow Ups:
He did not say that cables did not make a difference, he said the *direction* of the cable did not make a difference. Since it is passing AC, it's hard to see how there could be a difference. Perhaps you can enlighten us as to how, electrically, there could possibly be a difference??
HowdyI tried to point out that may warning came not entirely from the post in question, it was brought on by the sum of his recent posts on the Cables Asylum.
The substance of my warning is about the spirit of the mission statement. It's about the difference between a pronouncement of fact and an opinion. His statement "They are right. It [directionality] doesn't matter." is a statement of fact (which happens to be false in many of our experience) rather than an expressed option, for example: "I wouldn't worry about it if I were you" or "I don't know how it could matter, try it".
As the mission statement says if you want to argue about how it could or couldn't be true please visit other places (perhaps Propeller Head Plaza: http://www.audioasylum.com/forums/prophead )
To partially answer your question a search here or elsewhere will net a lot of speculation about possible mechanisms for a difference. Among them:
1) Asymmetrical shielding connections (perhaps a capacitor or such or nothing to connect it on one end.)
2) Cable isn't manufactured symmetrically, it's drawn thru dies and hence has tool marks/deformations that aren't symmetrical with respect to direction. Many cable manufacturers have varying accommodations/techniques to minimize any effects from this.
3) Since Audio isn't symmetrical (look on a scope sometime) if there are any nonlinear effects in a cable depending on it's direction it will affect audio non linearly...
But to me the obvious trump is the many reports here and elsewhere (and my own experience) where cable directionality does matter. That's what the Cable asylum is about: to share experience rather than argue about whether those experiences are valid.
http://www.soundstage.com/yfiles/yfiles200005.htm
http://www.soundstage.com/yfiles/yfiles200102.htm
More to be found here:
- http://www.google.com/search?hl=en&ie=ISO-8859-1&q=cable+burn-in+directionality (Open in New Window)
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