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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: RE: Oh, brother, it's getting deep around here posted by Ugly on November 19, 2022 at 09:45:30:
No, positive results are not the same as negative results. Negative results from a single test have no meaning. That's because too many things can and do go wrong with tests. But positive results are meaningful because they were positive *in spite of* the many possible pitfalls.What are those pitfalls, you ask. Fair enough, here is a short list,
1. Error(s) in the test system, including but not limited to, speakers wired out of phase, cabling connected out of phase, absolute polarity of system inverted, cables or electronics not broken in sufficiently. These error would potentially mask differences in sound.
2. Test system lacks adequate resolution for task at hand, making the sound differences impossible to detect.
3. Listener not sufficiently skilled at detecting differences in sound.
4. Listener doesn't know what differences in the sound to look for. What difference in sound does directionality produce?
5. Test procedures not followed.
6. Listener might be biased against the test item(s). He could be strongly anti tweak and nit admit to any Sonic differences if there are any.
One person's listening skill might not be up to the level of someone else's. If you don't know what directionality sounds like you might not hear it the first time around. That's what I meant by listener skill being unreliable. You can't drag some guy in off the street and expect him to hear directionality.
It's not difficult to control any wire or cable for directionality. You must "control" the wire as soon as it comes off the spool, every length of wire after that is in the direction. AudioQuest (and others) has been doing this for many years uh, 25, so obviously it's not prohibitively expensive, as you say.
For fuses, the wire doesn't have to be controlled during manufacture since it's easy to reverse the fuse in its holder and decide which way sounds best.
Finally, in an AC circuit there are two wires, one carries the electrical signal in one direction while the electrical signal travel in the opposite direction at the same time. The signals alternate direction on each wire according to the instantaneous audio frequency.
Edits: 11/19/22 11/20/22 11/20/22
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- Negative vs positive results - geoffkait 15:52:44 11/19/22 (0)
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