Speaker cables.. Budget again.. With a twist...

That we can measure amperage, impedance(or resistance), and capacitance is not in question. A music signal is much more complex than the AC current that it takes to light your light bulb, containing a plethora of frequencies, harmonics, ambiance and timbre cues, etc. Much experimentation has gone into the dielectrics, conductors(OFC, solid silver), and configurations(Litz, spirals, etc) chosen by some of the better cable/interconnect companies over the years, and the fruits of their labors are greatly appreciated by those of us that have taken the time to audition and use them. That some have chosen not to, doesn't surprise me in the least. If everyone chose to follow those Pie-Eyed Pipers of everything-sounds-the-same/there's-no-difference/don't-bother-trying: We might still be listening to a conch shell held up to the ear. Probably not two for stereo, because that would have been discouraged also

Which side of this debate has the most enthusiastic "Pie-Eyed Pipers?"

I could care less, but- It wouldn't be easy! It seems I've entered into a battle of wits with a number of un-armed individuals. Enjoy yourselves!!

Actually, the fact that music is not a simple sinusoid really is not at all important. Fourier demonstrated long ago that a complex waveform can be completly defined by a series of sinusoids. It took a while for technology to catch up but with digitization and application of time saving techniques such as the fast fourier transform his theories are now a part of electronic systems across the spectrum (pun intended). We use these ideas to analyze everything from ecg waveforms to radar signatures to identify whether an aircraft is friend or foe. The complexity of audio waveforms are not an obstacle to complete definition. And again, I am unaware of any double blind studies showing that people can hear the difference between cables. We usually use science to verify or correct perception of the senses. How many experts bought fake works of great artists only to discover through scientific methods that what they bought were created years after the supposed creator died. But either way, science or human perception, the evidence points to the lack of difference between the specialty cables and just plain old wire. Usually the most obvious answer is the correct one.