Almarg quoted Atmaspere,
Atmasphere 5-26-2016 12:31pm edt
"I joined this thread recently with some results on testing. Those results are that the directionality appears out of coincidence and that actually greater improvement can be had by rotating the fuse in the holder for best contact. The improvement is measurable and audible; descriptions others have made on this thread of what happens when you get the direction right accurately describe what happens when the contact area is maximized.
Occam’s Razor has something to say here! Given that a fuse has to be used in AC circuits and given that people report differences by reversing the fuse, and also understanding how fuses are inherently incapable of having directionality in any way whatsoever, the explanation that they somehow have an effect by reversing them in the holder is a fairly complex explanation: some sort of unknowable, unmeasurable quality of the fuse itself.
A simpler explanation is that the reversal is improving the contact area because fuse and holder are not dimensionally perfect and the fuse might sit better in the holder in one direction. By rotating the fuse in the holder without reversing it gets the same effect only more profoundly."
With all due respect to Al and Ralph wire directionality is not some new-fangled theory, the directionality of wire including fuses has been known around high end audio circles for almost three decades. Many high end cable manufacturers, including but not limited to Audioquest and Goertz and Anti Cables, have been aware of wire directionality for eons. That’s why their cables - their unshielded cables - are marked with ARROWS, just as many aftermarket fuses are marked with ARROWS. But we’ve covered all this before. The fuse holder theory is what I call a red herring. Now I’m not saying the fuse holder isn’t totally blameless, and perhaps there could be some audible differences, who knows. By using Acme Audio silver plated fuse holder and Quicksilver Gold contact enhancer one can easily eliminate any so-called fuse holder issues. Here’s the summary of the fuse measurement provided on the HiFi Tuning website for those who haven’t seen it.
a. A smaller fuse has always a bigger resistance than a bigger fuse (as well value as size) which is dependent on physics laws. With smaller value fuses, also the current through the fuse decreases. So the total power loss stays more or less the same.
b. A fuse with smaller dimensions always gives better results, than same value fuse with bigger dimensions.
c. High Quality special High End fuses normally give better measurements results than standard fuses.
d. Fuses made in far east sometimes had worse results than standard fuses. Also manufacturing quality different more.
e. The Infinity Power Evolution 500 mA fuse (palladium) had a bad manufacturing quality.
Atmasphere 5-26-2016 12:31pm edt
"I joined this thread recently with some results on testing. Those results are that the directionality appears out of coincidence and that actually greater improvement can be had by rotating the fuse in the holder for best contact. The improvement is measurable and audible; descriptions others have made on this thread of what happens when you get the direction right accurately describe what happens when the contact area is maximized.
Occam’s Razor has something to say here! Given that a fuse has to be used in AC circuits and given that people report differences by reversing the fuse, and also understanding how fuses are inherently incapable of having directionality in any way whatsoever, the explanation that they somehow have an effect by reversing them in the holder is a fairly complex explanation: some sort of unknowable, unmeasurable quality of the fuse itself.
A simpler explanation is that the reversal is improving the contact area because fuse and holder are not dimensionally perfect and the fuse might sit better in the holder in one direction. By rotating the fuse in the holder without reversing it gets the same effect only more profoundly."
With all due respect to Al and Ralph wire directionality is not some new-fangled theory, the directionality of wire including fuses has been known around high end audio circles for almost three decades. Many high end cable manufacturers, including but not limited to Audioquest and Goertz and Anti Cables, have been aware of wire directionality for eons. That’s why their cables - their unshielded cables - are marked with ARROWS, just as many aftermarket fuses are marked with ARROWS. But we’ve covered all this before. The fuse holder theory is what I call a red herring. Now I’m not saying the fuse holder isn’t totally blameless, and perhaps there could be some audible differences, who knows. By using Acme Audio silver plated fuse holder and Quicksilver Gold contact enhancer one can easily eliminate any so-called fuse holder issues. Here’s the summary of the fuse measurement provided on the HiFi Tuning website for those who haven’t seen it.
a. A smaller fuse has always a bigger resistance than a bigger fuse (as well value as size) which is dependent on physics laws. With smaller value fuses, also the current through the fuse decreases. So the total power loss stays more or less the same.
b. A fuse with smaller dimensions always gives better results, than same value fuse with bigger dimensions.
c. High Quality special High End fuses normally give better measurements results than standard fuses.
d. Fuses made in far east sometimes had worse results than standard fuses. Also manufacturing quality different more.
e. The Infinity Power Evolution 500 mA fuse (palladium) had a bad manufacturing quality.