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The difference between cables should be obvious the moment you swap one for another."
Not true, that is why A-B tests are flawed. Many times I have been listening to familiar music and heard sound clues I had never heard before, weeks or month later. That brush stroke, fingers rubbing on guitar strings, increased or diminished depth or width, background sounds created by the musician touching the instruments, decay, pitch, vocals becoming more clear or smeared, etc.
If one hears a difference in a A-B comparison in an instant, how can one know it is better or worse, long term?
Not true, that is why A-B tests are flawed. Many times I have been listening to familiar music and heard sound clues I had never heard before, weeks or month later. That brush stroke, fingers rubbing on guitar strings, increased or diminished depth or width, background sounds created by the musician touching the instruments, decay, pitch, vocals becoming more clear or smeared, etc.
If one hears a difference in a A-B comparison in an instant, how can one know it is better or worse, long term?