General Asylum

Posted by Analog Scott (A) on September 26, 2021 at 14:02:50

In Reply to: RE: "So now you are making the point that there may be audible differences between cables?" posted by dogscanskate on September 26, 2021 at 13:01:57

"Thanks for the lesson man, an A/C signal at 50 Hz or 60 Hz (add harmonics, noise)can also be considered an "audio frequency" as it has inductance/capacitance/resistance components. It may or may not be totally filtered out by the component's power supply. Have you conducted tests to affirm your findings (or thoughts)?"

The component's power supply converts the AC power to DC. DC has no frequency or harmonics. The only issue is noise from the internal power supply. The power coming into the internal power supply is no longer an issue after the AC/DC conversion unless it is a poorly designed power supply as per my first post.
As for tests, yes I have done blind comparisons. As have many others who have published their results. I get the same results as every other blind test. No audible differences. You can also just check the actual measurements of the signal to noise ratio of any component and see that just about every non tubed component has an SNR below audible thresholds.

"Now back to the DBT science, you love to use it as a reference so tell me please who has ever conducted an unbiased DBT test in the world of audio??? Why don't they perform these tests?"

Sean Olive and Floyd Toole are probably the most notable people in audio that have used DBTs for speaker evaluation. But the HK facilities they built were used by many speaker designers. James Johnston is probably the worlds formost expert and experienced scientist in the field of psychoacoustics who has made a career doing research in audio aimed at the audiophile community.

"You love to insert "Science" in your posts but have you ever tried using it as a tool to prove your assertions?"


I mostly use existing scientific research as a reference. I am not a research scientist myself. I do use blind protocols to remove bias effects from my own auditions whenever possible but I rely on real scientists to do the actual science. I think that's pretty much the way most of us non scientists make the most of science.


"It seems like "Science" doesn't give a hoot about the possibilities of power cables sounding different. Nobody really cares except those who actually try to shame those who do not share their beliefs."

Actually people doing real scientific research in the field of audio do give a hoot what does and doe not make a difference. I doubt HK spent millions of dollars on their facilities to do DBTs did so because they didn't give a hoot.

"If my ears tell me there is a difference, why do you use that pseudo scientific babble to intimidate people? Bullshit permeates all levels of thoughts/beliefs."

If your ears tell you there is a difference why do they stop working when you don't know ahead of time what you are listening to? What is it about blind protocols that make audiophiles ears stop working? Honestly, doesn't that make you wonder? It's actually quite easy to hear differences, even very small differences under blind conditions. Why do night and day differences people report between power cords and audio cables disappear under blind protocols? How does that not make you wonder WTF is going on?