Determining current flow to install "audiophile" fuses.

Al, thanks for your astute arguments, in fact HiFi Tuning agrees with you that the differences are quite small and they state that the small differences do not seem to explain the (large) differences in sound between the two directions. By the way, HiFi Tuning is not the only aftermarket fuse co. to mark their fuses with arrows so it's not as if HiFi tuning is the only one company claiming directionality of fuses. So, you cannot actually win the argument by attacking HiFi Tuning.  Be that as it may, I feel it’s only fair and relevant to point out that audio interconnects - and here I’m referring to unshielded ICs so as not to confuse anyone - are directional.... and easily demonstrated to be directional. Just like fuses, it’s how the wire of the conductor is manufactured that determines it’s sonic directionality. That directionality (of the metal conductor) is precisely why many high end audio cable manufacturers provide ARROWS on their cables to indicate the direction that current is flowing between components. It doesn’t take much of a lead of faith, except perhaps for died in the wool skeptics, to see that ALL wire is directional.

geoff kait

George, please don’t put words in my mouth. I’m not referring to ICs with shields as that’s a different issue. I’m referring to ICs without shields. They are directional and have always been directional. And for the same reason that all fuses are directional. By the way I totally get the backfire effect. No worries.

George, obviously unless the cable manufacturer keeps track of the directionality of all wire the result will not be satisfactory.  If a cable manufacturer knows what he's doing having multiple conductors in a cable is not going to be a problem.  

pop quiz, are stranded cables directional? Are power cords directional?

answers at 11.