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

Has everyone on here who is saying there is absolutely no sound difference between stock fuses and the boutiques ones actually tried them? Just because one has the means to afford the best equipment in the world doesn't mean they can hear well; know many with gear more expensive than mine that can't hear for you know what. Just saying I'm hoping everyone has at least tried them; if you have and you didn't hear any difference then hopefully you didn't spend too much on your equipment because don't all solid state amps sound the same anyway? They don't so lets don't go there but many believe they do even if they measure the same on the bench right? That is possible to build two completely different amps, by two different manufactures that measure almost identical isn't it, but they should sound they same right? How can that be they could sound different? Bust out the Kool-Aid... Oh Yeah.

Heard all the logic how it makes no sense how something so small with this and that material; yeah we all know what and how a fuse in constructed, can make any difference. So this same logic has to hold true for the same for resistors, diodes and etc that say Emerson uses is what the big boys use? Come on man; these components are so small how can they make a difference with the similar materials in them? I know they do make a difference and understand these components do cost much more and the boutique manufactures are using them and that is part of the cost difference between say nice NAD amp and a Pass. Sure much of it is circuit design but surely these small components have to make up part of the sound difference or why couldn't NAD build a much cheaper amp to crush any Pass for much less? Before I continue I do want to apologize for anyone using anything by Emerson in their main system and I'll be the first to say don't switch out the fuse because it will not make a difference there.

I for one am using aftermarket fuses and do hear a difference. Being a percussionist I can hear the difference between different cymbal manufactures on the same weight and size of a similar cymbal because I have over the years trained myself to know what to listen for; nothing special here, just that many musicians learn how to listen and just like in the Audiophile world many musicians don't as well.

Actually I'm more interested if the OP has dropped the fuses in the amp mentioned and what their ears tell them.

For the record I do not work at Emerson, NAD or Pass or in anyway affiliated with them. Thought this thread was getting a little tight so hopefully someone had a little fun here.

Happy listening...

I don't think there is any fuse that doesn't have a direction that is best. Even when Syn. Res. zapped their fuses both directions on direction always sounded best. Why if there are real scientist here can they not explain why. The nonsense that it is AC current going through them is obviously wrong. 

Stop being engineers, real scientists would be finding out why there is a direction. If you don't bother, I will not be surprised, but I really don't care. It is everyone loss if you don't switch your main  fuse on your preamp and listen to it both ways.

Hi-Fi Tuning used to claim no directional difference, but I tried 10 of them and they were all the same direction. The same with the original SR fuses. Even cheap fuses are directional. I suspect the place to look is in how the fuses are made.
The nonsense that it is AC current going through them is obviously wrong.
tbg, are you suggesting that fuses don't have AC current going through them?

Just a FWIW for you: real engineers have to by definition also be scientists. If we abandoned the scientific principle it would be impossible to design and build anything.
" Stop being engineers, real scientists would be finding out why there is a direction".

No dude, there's no science at all -- math is savvy and sufficient enough to conclude and judge. Forget the math, just use trivial elementary school arithmetic -- of course if you're savvy enough to do that.

Adding/Subtracting 5-digit arbitrary numbers without using calculator AND/OR paper-pen trains memory and logic.


When smart people seemingly speak before thinking there is often some agenda at play.

Stop being engineers, real scientists would be finding out why there is a direction.


Well Geoff is supposedly a theoretical physicist and gave an explanation until someone comes up with something better.

There is supposedly this thing called math involved that can be used to communicate how theory works to the engineers that will actually make something useful. Like Einstein did to communicate his theories to those who eventually ended up making the bomb. Theoretical physics sounds cool but not an excuse to just make things up and sell them as real or meaningful. I’ll just put my trust in the good EEs current understanding especially having already wasted time trying to hear a difference.

Meanwhile its the engineers that take the best accepted "theories" and actually make things that work. So just take that for what’s it’s worth all. Like Atmasphere said (paraphrasing) "no good engineering without good science to support it".