we all have different brands of components . These amps , preamps , phono amps all have different electrical (Let's use the term stats) . The almost infinite combinations we are putting together with different brands make comparing one cable in one system and trying to determine the results in any other combo that does not have the exact same electrical (stats ) impossible to say what the sound result will be .
Now if we all had the same systems we could do a much better comparison of a cable . We would still come to different sound descriptors even then though .
Now let's look at a integrated amplifier's design . The designer choses the internal wiring that will work the best for it's application . He spends the time and makes a determination on what is needed . No need for us to fret over his decision because we can not alter it . What is a compulsive tweaking audiophile to do ? Can not do a damn thing about it ! and still the integrated can give pleasurable results anyway . Go figure .