Nothing is completely neutral but there are degrees of closeness. Audio electronics companies like Meridian, Spectral, Linn, Levinson, Goldmund that design complete systems do strive to convey the signal end-to-end with as much linearity and as low distortion as possible. I believe this is what Audioengr is referring to.
It is also possible to define neutrality from a listening standpoint, as recording engineers do when they use a live mike feed as a reference for any subsequent changes in sound.
The problem is for the ordinary audiophile who has neither an oscilloscope nor a reference sound to work with.
I agree with Audioengr when he says most cable manufacturers do not understand cable physics. There is nothing easier to do than change sound. Avoiding changing it is what is difficult.
It is also possible to define neutrality from a listening standpoint, as recording engineers do when they use a live mike feed as a reference for any subsequent changes in sound.
The problem is for the ordinary audiophile who has neither an oscilloscope nor a reference sound to work with.
I agree with Audioengr when he says most cable manufacturers do not understand cable physics. There is nothing easier to do than change sound. Avoiding changing it is what is difficult.