Apparently current travels very slowly, the drift velocity of electrons being what, about 80 cm per hour. Thus the net velocity of current back and forth is zero. Also apparently, voltage is an electromagnetic field that has no velocity only direction, alternating with the current. Or maybe is does have velocity, maybe it’s a wave, it does not matter for this argument.
Thus, as regards the argument of fuse or wire directionality in AC circuits, it certainly appears that one should not care about the “relative audibility” of either current/voltage when they are traveling away from the speakers/amplier. One should only care about the relative audibility of current/voltage when they are traveling in the direction toward the speakers/amplifier. This is why the direction of fuses and wire in general is audible in AC circuits as well as DC circuits. In other words, it’s an old wives tale that fuses or cables cannot be “directional” in AC circuits. This also explains why all Audioquest cables AND power cords are “controlled for directionality,” even the tiny strands that comprise the conductors of their new power cords.
Thus, as regards the argument of fuse or wire directionality in AC circuits, it certainly appears that one should not care about the “relative audibility” of either current/voltage when they are traveling away from the speakers/amplier. One should only care about the relative audibility of current/voltage when they are traveling in the direction toward the speakers/amplifier. This is why the direction of fuses and wire in general is audible in AC circuits as well as DC circuits. In other words, it’s an old wives tale that fuses or cables cannot be “directional” in AC circuits. This also explains why all Audioquest cables AND power cords are “controlled for directionality,” even the tiny strands that comprise the conductors of their new power cords.