Actually, Pauls response was based on years of hands-on design and manufacture, designing audio equipment is like gourmet cooking, you have to taste it while cooking or in this case listen to your designs. But that does not apply to cables! cables are passive, not active, and although they do interact with electronic circuitry their effect should be nill, or else you're inducing some sort of anomalies that is actually changing the waveform and that's bad! So if someone actually did hear a difference that difference should be measurable because of the relatively small bandwidth of the audio spectrum. Like Gene I have worked in Electronics all my life building my first HiFi from an allied radio KNight kit in 1959, I still have some of those early stereo demo records somewhere I played them ad nausea for hours on end. The only thing I found to enhance the sound back then was adding a "Nickle" to my Garrard turntable arm to increase the weight ... yes, worked better than cables! When I was selling a lot of stereo equipment in the '80s and 90's I would mess with the golden ear audiophiles that came in my shop by challenging them to discern the difference between cables... I would go in back of the display and say ok now I've change cables, but I never did, and they would to a man swear that they could hear a difference. I would do this with everything and nobody ever caught on, except when I told them what I did, then I would never see any of them again! So I just let them live their illusion, I still hear this nonsense today from golden ears who by some act of god have been born with greater hearing ability than you, these are the same guys who can't live without ketchup. So I'm siding with Gene on this one good cable is a prerequisite but exotic expensive cabling is driven by greed arrogance and disinformation... in a word junk science