Is there an Audible / Measurable Difference between RCA ...

Soniclife said:

how are you accounting for selection bias is what I'm asking.

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The cable I used was sitting in storage, just age causes the contact to have some degradation and become unreliable.
The cable was not damaged by &#;hard life&#; or &#;over use&#; by plugging many times, it was simply worn out by the environment.
I attempted to &#;clean&#; the metal contact but afterwards still had some sort of &#;rough&#; finish.

Maybe some brands will fair better than others, but I had a seemingly good quality (judged by it&#;s overall construction) &#;Sony&#; brand cable which suffered from the same degradation.

I suspect there is also a flaw in the design, which is sensitive to the position of male 3.5mm in female 3.5mm port. The slightest force on the angle of plug, or even twisting (rotating) of plug can cause (and sometimes reduce) noise and &#;spikes&#; in the signal.
I am sure there is variation of &#;tolerances&#; between the many plugs & sockets, but my overall experience over many years has been consistent with having &#;bad contact&#;.

I am sure you must have experienced it at least once, when something doesn&#;t sound right, the you &#;adjust&#; the 3.5mm connection and everything is fine (bass comes back, distortion disappears etc).

I have found gold (brass) plated 3.5mm plug seems to last longer in terms of degradation from environment.
But I have still experienced the same issues with these brass plated plugs.

The cable I used was sitting in storage, just age causes the contact to have some degradation and become unreliable.The cable was not damaged by &#;hard life&#; or &#;over use&#; by plugging many times, it was simply worn out by the environment.I attempted to &#;clean&#; the metal contact but afterwards still had some sort of &#;rough&#; finish.Maybe some brands will fair better than others, but I had a seemingly good quality (judged by it&#;s overall construction) &#;Sony&#; brand cable which suffered from the same degradation.I suspect there is also a flaw in the design, which is sensitive to the position of male 3.5mm in female 3.5mm port. The slightest force on the angle of plug, or even twisting (rotating) of plug can cause (and sometimes reduce) noise and &#;spikes&#; in the signal.I am sure there is variation of &#;tolerances&#; between the many plugs & sockets, but my overall experience over many years has been consistent with having &#;bad contact&#;.I am sure you must have experienced it at least once, when something doesn&#;t sound right, the you &#;adjust&#; the 3.5mm connection and everything is fine (bass comes back, distortion disappears etc).I have found gold (brass) plated 3.5mm plug seems to last longer in terms of degradation from environment.But I have still experienced the same issues with these brass plated plugs.

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