Wire More than any other topic, speaker cables and equipment interconnects seem to use up rec.audio. Controversy can be stimulating, educational, and also amusing. Please try to keep postings aimed at one of those three goals, and avoid the insults and emotion. Also, try to avoid echoing a common position or principle, as described below.
Coaxial cable is also cable.
Nonlinearities can distort the signal which add harmonics. It is quite scientifically conceivable that some cables do cause a difference in sound, because of the differences in DC resistance, interconductor capacitance, and connector attachment alone. The effects of exotic conductor weaving and materials are not so well established. In any system or experiment, it is essential that the differences between cables be separated from the differences between connectors. Speakers operate at very low impedances, so that bad connections will create significant artifacts or signal losses at any power level.