What direction should Hi Fi tune fuse be installed

Geoff, the magnetic wave has no net flow....it oscillates back and forth, not in just one direction. THAT is the definition of AC. You have never taken a physics course, electrical engineering course, have you? Or, you would know better.

Knowing what you don't know is an important thing. You have failed to recognize that which you don't know.

Kiddman, what you're not understanding is that the audiophile world is on the cutting edge of physics. Who needs CERN and their super collider when real advances in the understanding of sub-atomic particle behavior can be advanced with a $30k stereo system and listening to the soundstage dimensions of a Diana Krall CD. Knowing what you know you don't know is more important than not knowing what other people think they know, but you know they don't know.

Yes, On Highway 61, I forgot how leading edge the physics is in audio. Nearly all the principles can be learned in freshman year at any of the best engineering universities, so high tech is audio!

Unlike intelligence, which is not much of a personal choice (though IQ can be raised), ignorance is a choice. Google searches bring up texts and university papers in any of the engineering and physics disciplines that relate to audio. But, folks would would rather mouth off and remain stubbornly wrong instead of learn something from those available texts.

"Don't bother me with facts! I have my OPINIONS" seems to be the mantra of so many audio guys (including many "designers" and reviewers).

In racing we used to call this type "bench racers". They talk a big game and it's fun to then see them on the track making fools of themselves. No such accountability in audio, unfortunately.

Kiddman, so you agree with me now that the music is NOT the current and it's NOT the electrons. If the electromagnetic wave - the music - is alternating at 60 Hz I'm pretty sure you would hear it, well, maybe not you specifically. Lol Your next move: "No, it's the voltage that's alternating."

"Louis Pasteur's theory of germs is ridiculous fiction." (Pierre Pachet, Professor of Physiology at Toulouse , 1872) "The abdomen, the chest, and the brain will forever be shut from the intrusion of the wise and humane surgeon," (Sir John Eric Ericksen, British surgeon, appointed Surgeon-Extraordinary to Queen Victoria 1873) "The super computer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required."
(Professor of Electrical Engineering, New York University) "Heavier-than-air flying machines are impossible!" (Lord Kelvin, president, Royal Society, 1895) "There is no likelihood man can ever tap the power
of the atom." (Robert Millikan, Nobel Prize in Physics, 1923) "Man will never reach the moon regardless of all future scientific advances." (Dr. Lee DeForest, Father of Radio & Grandfather of Television) "The bomb will never go off. I speak as an expert in explosives." (Admiral William Leahy , US Atomic Bomb Project) When the steam locomotive came on the scene; the best(scientific) minds proclaimed, "The human body cannot survive speeds in excess of 35MPH." Until recently; with the understanding of the relatively new science of Fluid Dynamics, the best(scientific) minds involved in Aerodynamics, could not fathom how a bumblebee stays aloft. Often; Science has to catch up with the facts of Nature and/or, "reality". I haven't been in school, since the 60's, but- at Case Institute of Technology; the Prof used to call what we were studying, "Electrical Theory." He made a point of the fact that no one had yet actually observed electrons(how they behave on the quantum level) and that only some things can really be called, "laws."(ie: Ohm, Kirchoff) Maybe that's changed, in recent years, and I missed it? I've not played with my fuses, other than having replaced them with HI-FI Tuning and Synergistics. If others cannot, will not, or do not wish to try to, hear the differences that fuses make; fine for them. I wish I didn't know better(from experience). I wouldn't know what I was missing, and could save a few bucks.