The abstract defines the "error" as the voltage drop between amplifier and speaker. Isn’t that determined solely by the resistance of the speaker and cable? So the "lowest error" would be obtained with a speaker cable of least resistance?Look, i’m not defending costly magic cables. I focus more on really good connections (which typically suck, and are made worse by obstinate fancy cables BTW). I cannot tell you how many systems i have tightened a connector on or eliminated an intermittently shorting 2-guage speaker cable, or cleaned a grss set of contacts on. sometimes after saying "this isnt right".
That said, to the above, no. Its reactance. Maybe that’s what you meant but reactance is highly dynamic and also interacts with the hugely reactive load that a speaker poses. Consider this, theoretically, when the voice coil is returning toward its original position, it is provide in back-EMF and therefore a NEGATIVE resistance.
Just saying this is not a simple "measure the ohms on our radio shack meter" sort of thing.
If Radio Shack still existed.