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Original Message

RE: Not responsive..

Posted by tomservo on June 21, 2010 at 08:56:27:

“Then I find it odd that none of the ABX proponents has tested it to see what effect it does have, if any.”

In the testing I described, all the participants had a chance to get used to their wires, had a chance to pick out the best, most revealing music passages, were all accustomed to whatever changes if any the switcher caused and could still “hear” their wires clearly when they said they were ready (to be “blinded by science” or rather having the knowledge of which was which was eliminated leaving only the aural inputs).

Nothing at all changed in the test except the loss of the little lamp which said which cable was which.
Now, here is a case where nothing the switcher did was any different, nothing the cables did was any different ONLY the loss of the identity changed, ONLY that was responsible for the apparently large change in hearing acuity.

One is left asking, when is it desirable to separate the domains, the customary view of hearing as an experience as opposed to what one can genuinely detect with ones ears alone.

I think the difference is important if you’re engineering a product as you are only concerned with what others might hear from your design without knowing you or your approach, while the user may not care at all why something appears to work, why they need to wear their lucky underwear to an important meeting.

I cannot say I have tested exotic power cables, this niche is a fairly recent event in aftermarket add on’ s likely having more to do with standardized power connectors and a marketing opportunity than manufactures cheating the design with a insufficient cord or plug.

Theoretically, given the size of the power distribution system, except for the absence of, should not make the kind of difference that would be revealed in this kind of test.
Until someone does that test, one can’t say with certainty which domain the claimed effect is in.
I can say that a proper power supply would normally not be subject to reasonable amounts of crud on the AC line, in test equipment a very high degree of immunity is required, price point and the designers skill is the issue.
Best,
Tom