Let me share my experience. As you can see I do not spend a lot of time posting on forums, for I spend most of my time working. I have an engineering background in education and last 18 years have spend most of my time developing technology to enable the next generation circuits for smaller and more efficient semiconductors. If you have owned an Apple product or an Xbox or another device which uses semiconductors you likely have owned a product which I had some part in designing. This includes many patents.
The reason I tell you this is because I want you to understand my background started with known mathematical equations but when you get into the real world those equations although not wrong fail to capture all the variables which drastically effect the out come. When I completed my education I would of told you power cables would not matter if they satified the basic requirement for impedance, etc. My new college graduates with Masters and PHD's typically make these same assumptions and quickly learn that imperical data is king. When you are dealing with the tolerances required to be successful in semiconductor design we can not assume or theorize an outcome with known electrical equations and material properties. It requires experimentation because nothing is perfect plus we as humans have not discovered all things. We are still learning.
We also understand each human can have an inherent bias so we have training to understand these bias's and work so they do not influence our decisions.
That is my work, my passion is audio. Because of my background I use to test everything and that included cables when it comes to audio. Mostly of my testing involved digital and interconnect cables but also power cables. Once I was familiar with the sonic characteristics of cables, we would perform blind testing and not only would I hear a difference but I could tell which cable was being used. This was repeatable many times over. Over the years of testing, my blind testing matched my non blind testing. I no longer question if the changes I hear in my system are real. I do not claim to know why there is a difference in all cases. I am sorry if you do not know cables can sound/feel different even if they measure the same. I trust my ears.
The reason I tell you this is because I want you to understand my background started with known mathematical equations but when you get into the real world those equations although not wrong fail to capture all the variables which drastically effect the out come. When I completed my education I would of told you power cables would not matter if they satified the basic requirement for impedance, etc. My new college graduates with Masters and PHD's typically make these same assumptions and quickly learn that imperical data is king. When you are dealing with the tolerances required to be successful in semiconductor design we can not assume or theorize an outcome with known electrical equations and material properties. It requires experimentation because nothing is perfect plus we as humans have not discovered all things. We are still learning.
We also understand each human can have an inherent bias so we have training to understand these bias's and work so they do not influence our decisions.
That is my work, my passion is audio. Because of my background I use to test everything and that included cables when it comes to audio. Mostly of my testing involved digital and interconnect cables but also power cables. Once I was familiar with the sonic characteristics of cables, we would perform blind testing and not only would I hear a difference but I could tell which cable was being used. This was repeatable many times over. Over the years of testing, my blind testing matched my non blind testing. I no longer question if the changes I hear in my system are real. I do not claim to know why there is a difference in all cases. I am sorry if you do not know cables can sound/feel different even if they measure the same. I trust my ears.