JDawg,
Perhaps still in your thoughts, as in that of so many others: "...these contributions are good and the blokes sound honest ... but is there just perhaps a possibility that they do not know it all? (No, we don't)
Next follows: "Perhaps Science does not know it all - after all how would they know if there is something they do not know?"
.... and so on. The line of thought often honestly persued by those trying to learn, and most dishonestly abused by those with set beliefs or hidden agenda's.
We scientists do not know everything, but we do know certain things. In this respect it is comparatively easy to show that exotic cables cannot make a difference; about as impossible as for water to flow uphill.
After all that in support of the previous contributions: The following matters can have no practical effect (meaning that any such effects can only begin to act way outside the audio range): The kind of metal (silver, gold, copper), resistance (unless >20m lengths of flea wire are used), inductance, capacitance, impedance, distance between cables, height suspended above the carpet, temperature, insulation, oxygen-free copper, flat or round (the former works better under carpets for purely geometric reasons), stranded or single (except for reasons of convenience), the magnetic field of the earth, the "wide" audio frequency band ("bi-wiring must be used because cables cannot carry such a wide frequency difference").... These are about the most important factors, dished up as reasons to try to persuade you to part with your money.
All of this have been measured, listened for. Been there, done it, got the T-shirt.
My long-winded way of saying: Don't waste your money. Rather improve something else or buy a few extra CDs. (And if you still want to, listen to different products, but in heaven's name don't spend money unless you can hear a distinct difference - which you probably won't.)
