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In Reply to: Been there, done that posted by Sean on February 12, 2007 at 16:34:17:
"These power cords aren't really up to the task at hand, especially since the AC lines are so heavily polluted in highly populated areas."AC cords can filter line noise that is not from an external RFI source?
Good work laddy! Show me a schematic.
(P.S. - I read your "explanation" of how AC cords work. It's nothing more than a limited understanding of noise and harmonics and explains NOTHING about how 'audiophile AC cords' actually work. That sort of pseudo-scientific blathering may impress the ignorant ones around here, but it would not last 10 seconds in an engineering environment.)
Another example of where sticking to "I know what I hear" would have been a better idea.
Follow Ups:
Please don't assume that having a degree equates to skill, knowledge, experience or the practical application of all of the above when designing / building a product. Many times, these people know just enough to pass their tests and obtain their degrees. That degree does not necessarily give them the knowledge and / or experience that is needed in real world product development or manufacturing. Nor does it proved them with the required skills necessary to troubleshoot and resolve the problems that their lack of education and skills have created in the multitude of under-designed and under-engineered products that proliferate the market in most any given field. Sean
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does not mean you get away with failing to explain THIS statement:"These power cords aren't really up to the task at hand, especially since the AC lines are so heavily polluted in highly populated areas."
So, please define for us what exactly constitutes this important "task at hand" and why audiophile cables are "up to this task" and why stock cables are not.
That's not asking for the moon is it? Your "explanation" of why AC cables are important stops with that statement - it's as if the meat of your explanation fell off the end there. It's one hell of an introductory paragraph to a thesis on the subject, but a definitive technical explanation it is not.
I mean, you've "been there done that" with this theory, and have 1000+ posts on the subject. So now that you are an authority on the subject, you may be required (from time to time) to simply refer to the "cable science" you are well versed in.
Let's start with how stock cables can't deal with line noise NOT caused by local sources of RFI, and how Audiophile cables CAN. Because it sounds like you are supporting the "water filter theory", that AC cables don't just keep out noise, they can clean up what's aleady there.
Looking forward to a more definitive explanation...
Most stock cords are highly inductive by nature and prone to escalating ground loop noise. Many "audiophile approved" cords are no better. A well designed cord takes into account multiple different aspects of electrical performance, not just gauge and series resistance. Please see my other response to you in this same thread for more detailed information. Sean
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