Originally Posted by mjbuoni
You claimed that additional knowledge of cables and how they transmit signals would render my hypothesis that cables could conceivably
alter a signal to be unreasonable.
While I don't claim to be an expert in solid state physics, I do know enough to find it completely reasonable that the simple measurements performed on cables don't physically tell us everything. An audio signal has an enormous dynamic range, and unless the cable has been tested over signals that vary over this same range, how can you be sure that some low-level signal information isn't lost? Also, how about passing a harmonically rich signal through the cable? You don't know for sure if the cable my lose some of the higher order harmonics if they are in the presence of a large magnitude fundamental. This is what I meant by nonlinearity.
Besides, this is nothing more than a thought experiment designed to establish plausibility of difference between cables that aren't evident by the basic measurements. And if it is plausible, then it is perfectly reasonable to be let subjectivity influence one's choice of cables.
I would not like to get into a discussion of physics in this area since it is not my area of expertise. However, I would encourage you to consider the following:
1. Recording studios do NOT use exotic cables. They use professional grade cables. So ask yourself: Are these million dollar enterprises really oblivion to the possibilities, which you just stated? Do you really think that is possible? Now for a moment assume that these firms are stupid as rock. Assume that exotic cables really affect the sound. Even so, what difference does it make since the original recording had already been developed with cheap cables? The damage was already done. You can not recover lost information by simply adding a quality source at the end.
There are no speakers that I know of that use any exotic cables in their interiors. Can you guess why? Say speaker manufacturers are also oblivion to this simple fact and dumb as production companies, you will still lose all the benefit of using these exotic cables, as soon as the signal reaches to the speakers.
2. People have tested this double blind and nobody has ever been able to hear the difference among different cables in one of those tests. Miraculously, the difference becomes night and day only and only during sighted comparisons. When you ask cable proponents to conduct the same test blind, they are going to come up with 100 excuses not to. Why? How difficult it is to compare cables without seeing which is which and still be able to hear the difference? Why does the difference always disappear to the level of random luck when comparison is unsighted? The fact that there has been a $1M reward waiting for anyone who can tell this night and day difference without any willing candidates is telling itself. If you owned a cable company, wouldn't you go after that award? Not for the financial sakes, but just for the prestige. Can you imagine the reputation, credibility, and publicity your products would have gained? What are they afraid of?
3. If cables really make a difference, why only in audio? Why don't we get better light if we replace power cord of our lamps with cords from JPS Labs or Nordost? Why don't we get more tasty food when we plug expensive cables in our ovens?
4. This is only for power cords, power comes to your home via cheap power grids. How can anyone think just by adding an expensive cable at the end, they will be able to bring back all that lost fidelity?
There is probably a lot more, but these are what I can think of immediately.
With all these, it is beyond me how people can still continue debating this.