[lcaillo]

Can you offer any explanation as to why you might be getting a difference? I actually have tried to measure differences with power cables that claimed noise level and dynamic improvements and could find none. I also have done extensive listening tests and could never detect a difference. I can find no plausible explanation for why there might be a difference in any but the most extreme cases of underdesign.
Posted via Mobile Device

 

[lcaillo]

Power cables are easy to double blind test. Get a helper to randomly switch them while you listen to the same recording for each test. Do it is such a way that you don't know which is which and the order is random using a number of trials. If you can reliably tell the difference use the one that you think sounds better. Most likely you will not be able to do any better than flipping a coin.

 

[lcaillo]

I view pcs as components in and of themselves; as they have characteristics of their own. They can affect the flow of the electrical current thru the cable in many ways. At minimum capacitance, inductance, resistance, etc.

While in an absolute sense, this is true, it seems to me that it is neccesary to identify how these characteristics vary, how they interact with the sound of a system, and at what point they become significant. Has anyone documented any effects? These factors are rather easy to measure compared to sound quality differences and it seems that it would be a good place to start. If any of the vendors of these power cords would like me to make some measurements to test their claims, I would be happy to do so, but I have not been able to detect them in the past. Maybe with their expert guidance I can find something?

That's why we are told to take it home and "listen".
John:bigsmile:

Are you doing objective listening tests that isolate the well-known psychological variables such as expectation bias and placebo effect?