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Determining current flow to install "audiophile" fuses.

There are 4 fuses in my Odyssey Stratos amp. I recently returned some AMR fuses because they rolled off the highs and lows a little too much for me. Mids were excellent though. Anyway, I'm getting ready to try the Hi-Fi Tuning Classic Gold fuses, as they are on clearance now for $10/ea. Are they any good? However, I have read that they are a directional fuse? Can anyone confirm this? If that is the case, does anyone know the current flow for the Odyssey Stratos? Or, does anyone know how figure out current flow by opening up the top and looking at the circuitry? 


jsbach1685
atmasphere's avatar
atmasphere
11,864 posts
 
When a manufacturer marks it’s fuses with directional arrows it means they believe their fuses are uh, directional. When a manufacturer publishes detailed measurement data that shows differences in resistance depending on direction of the fuse it means the manufacturer believes fuses are directional.
Incorrect. They don't mark the fuse with arrows indicating its directionality, they mark it with a logo that is easily confused. This is done to buy into the myth that fuses are directional, and thus they sell more fuses. There is no directional data that exists, at least none that can be verified by independent test.

@georgelofi , +1
geoffkait's avatar
geoffkait
23,365 posts
 
Atmasphere wrote,

"Incorrect. They don’t mark the fuse with arrows indicating its directionality, they mark it with a logo that is easily confused. This is done to buy into the myth that fuses are directional, and thus they sell more fuses. There is no directional data that exists, at least none that can be verified by independent test."

I hate to speak before all the facts are in but it kind of appears that you are the only one confused by the symbol that looks pretty much like an arrow. What makes matters worse for your position is that the HiFi Tuning fuses actually sound considerably better when the arrow thingie is pointed in the right direction. At least that’s what people who have actually heard the HiFi Tuning fuses say. Furthermore Isoclean has actual, you know, arrows that should not be so darn confusing on their fuses. Have for twenty years. The test data sheets on the HiFi Tuning web site are actually from an independent testing facility. Hel-loo! As it turns out you have apparently bought into the old wives take that fuses are not directional.

The more you try to convince someone who has his mind made up using logic and rational debate the more convinced he is that everyone else is wrong, trying to trick him or there’s some global conspiracy. Lol

geoff kait
almarg's avatar
Ag insider logo xs@2x
almarg
9,670 posts
 
To member Whitestix, thank you for the advice you provided on the previous page of this thread.  Sage counsel, IMO.

Regards,
-- Al
 
georgehifi's avatar
georgehifi
10,312 posts
 

And to add to this absurd sound difference of fuses and their direction detection.

Now, with substantial hours in and all-SR Black fuses in the amp, here’s what my ears hear (forgive my lack of audiophile vocabulary, I’ll just describe it as best I can):

- Improved instrument separation, placement, and 3-dimensionality

- Perception of more immediacy and "smack/oomph"

- Lower, tighter, punchier bass

- Overall just a better sense of musicality

- I feel there was a very, very subtle loss of realism in instrument/vocal texture.

GK post the links that collaborate your findings on direction v sound of fuses.

Or take it all to your website, where just about everything is VOODOO! and this directional fuse stuff won’t feel out of place on it.

And as far as your explanation of arrows, that you can’t verify with documented manufacturers proof.

May I suggest that you need to investigate that the so called "arrow" is for inserting it the right way round where the sun don’t shine.

http://image.shutterstock.com/z/stock-vector-pooping-emoticon-67254478.jpg  

Cheers George

thom_at_galibier_design's avatar
thom_at_galibier_design
729 posts
 
Another consideration regarding directionality.  A fuse which is properly specified for the circuit is half way toward melting.

Just sayin' ...

Cheers,
Thom @ Galibier Design
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