Originally Posted by goodolcheez
It may depend on the cables too. You probably sent him some cheap monoprice-grade cable.
Radio Shack "Gold" series to be precise.
But why should the price of the cables matter? What is it about cable burn-in that depends on the price? While more expensive cables may use arguably better materials, then shouldn't the effects of burn-in be the least noticeable in the more expensive cables and most notable in the less expensive cables?
The difference may vary. Plus as mentioned earlier, there is no proof that measurements your friend attempted may not apply, or invalid too. How do you know that measurement is the only and best way to find out how the sound will be affected?
Because in order for the sound to be effected, there must be some difference in the way the burned-in cable affects the signal passing through it relative to the non-burned-in cable. And instruments allow for the measuring of those effects to levels far far below any human's ability to hear.
What equipments were used and what measurements were used?
An Audio Precision System 2 Cascade. Measurements included harmonic distortion, intermodulation distortion, and phase distortion using single tone, multi-tone and multi-tone derived from music.
I'm talking from various articles from the audio engineers and professors, including the ones listed here in this thread.
Ok. Could you cite one specifically, and more importantly the argument presented that would have any differences due to burn-in be of a magnitude that's at least greater than the thermal noise of the wire itself?
I would still trust from the engineers and professors, rather than some user who played with audio equipment for years and has a lot of post counts.
So because I don't call myself an "engineer" or "professor," that somehow inherently makes my arguments less valid? What if I called myself "God"? Would that trump "engineer" and "professor"?
For me it was a clear difference. As I said before, it sounded harshy / edgy with my silver cable. Now, after 500- 600 hours there is smoother transition in the music.
If it's a clear difference, then it should be trivially easy to demonstrate it. Nice thing about something like burn-in is that it lends itself very well to easily administered controlled listening tests. If you'd like to move over to the Sound Science forum, we could discuss the details.
What research? And of course the electricity will flow from point A to point B. We know that. But *how* does it get through the cable is the question, which was already mentioned here in the thread. The timing plays important role...
How it gets through isn't so important. It's what happens to the signal between point A and point B. And unless you're going to suggest some supernatural means of signal transmission hitherto unknown, the signal is ultimately nothing more than a change in current and voltage over time. And we can measure changes in voltage and current over time to vanishingly low levels, both in the time domain and the frequency domain.