I have a question for the engineers here. When playing around with cables I found something odd. Let me give you an example. If I used a particular belden cable design, albeit in different guages, using all teflon insulation and silver coated copper, I found a consistent flavour to these cables regardless of their application. You will have to trust me that I verified this with some blind testing, but once I recognised the flavour I could always hear when one was inserted into the system. This happened whether a fat one was used for a power cable, or a speaker cable, or a thinner one was used as an audio interconnect or a digital interconnect. I am not saying I didn't hear other things about these cables, but I am saying that there was a consistent additive quality, perhaps some form of ringing, regardless of the application of the particular type of cable.
I recently added such a cable to power a CD player that was connected to the system I was listening to but was not the source I was listening to and immediately heard its sonic signature. I was not expecting to hear it, and was stunned to hear it, so I don't think the issue was psychologically induced.
So other than me being mad (which is a whole 'nother question), is it possible that any cable connected to a system is an antenna of some sort and introduces audible effects even when used as a digital cable, provided there is some analogue component that is electrically connected in some way to that cable?