Originally Posted by BIslander
Besides, who knows how this test was actually performed. I suspect he'd get a difference from the initial file if he switched back to the first cable. But, based on josh6113's posts at the blu-ray.com forum, this test was set up, run, uploaded, and posted in an hour or two, hardly time to do any kind of controlled testing. I think you'll find that this poster ignores factors such as expectation bias and brings no scientific rigor to the project.
I'd say controlled test parameters to include ambient temperature, atmospheric pressure (for the drivers), amplifier case temp, etc. are a necessity. Where you stand in the room during the test will make a difference. Microphone placement, quality, mounting, airflow, etc. are paramount for an objective test. These tests must be made in an audio room that is free from room harmonics/feedback. I'd actually venture to say that laser imaging of the speaker drivers would give you the best results as opposed to a microphone.
Wouldn't you have to run the test multiple times with each cable. Alternating the cables between tests to ensure the transistors (or tubes) temps are not affecting the amplification of the signals. This is a very hard test to run and get the same results twice. Even in the most controlled environment. There are far too many variables to consider.
If you buy the cables, do you like them? Be happy. LOL
I do have a question that I have never really been able to nail down. When speaking on the topic of stranded versus copper wire (supposing they are both of adequate gauge for the signal run), do the twists in stranded wire act differently at higher freqs than low freqs? I know high freqs tend to travel along the "skin" or outside of the wire (hence waveguides for microwave freqs) but audio doesn't go that high.
With solid wire, aren't I going to get more or less inductive cancellation at certain freqs, thus changing the audio output? Twisted wires are going to oppose the rapid change in polarity more than solid would, right?