My original question should have been more focused perhaps: "Can anyone in this esteemed forum share  experiences - good or bad - with so-called audiophile fuses?" Formulating my question in this way should exclude theorizing on either side of the opinion-spectrum, namely dogma without supporting or damaging evidence. And to satisfy this demand, we do not even have to resort to Einstein or Maxwell, or Lord Kelvin with his infamous statement about human flight. No, we just have to sit down and listen: do we enjoy what we hear? Do we enjoy it more after exchanging one fuse for another? Do we perhaps hear new things in a familiar recording? It's really simple, actually, and quite down-to-earth. But it requires ear-wax removal - in the literal and metaphorical sense - to lead to accurate and valid and reproducible results. That's the only information I was after when posting my original question. Only AFTER we have the data from these experiences - hopefully with more users having similar experiences  (moving towards statistical relevance here), should we begin to make sense of our observations, and perhaps even formulate a new hypothesis trying to explain what we observed that cannot be accurately explained by existing theories. That's how science works, not the other way around.

                                          Why didn't you say so?

     If you're looking for a survey regarding whether others have found them efficacious: I'm certainly not alone in my experience and enjoyment of improved fuse technology.

      It's only logical; if audiophile fuses didn't serve to improve the presentation of more than just a few folks' systems, there would be no supply and/or demand, AT ALL.

       Personally: my experience began with the Hi-Fi tuning Gold, which was the least expensive and easiest to obtain, installed in the Mains and B+ protection of my Cary tubed monoblocks.  The improvement was obvious, with a marked difference in what I term "organics" (more real/less electronic, across the board).

        Next were their Supreme fuses, with which I found even more openness, naturalness and texture of presentation.

        Those last were experimented with, next to a pair of Synergistic Research SR20 fuses, only in the amps' B+, which I thought imparted an unnatural effect on my system's high freqs.    Back to the Supremes and relaxation.

         Last time a power tube went South and took out a B+ fuse, rather than wait to enjoy my sounds: I reinstalled an SR20 in that amp and found it to excel in presentation, over the other (RT to LT).    However: by then my main speakers had morphed from Magnepans to a pair with coincident horn tweeters.    A happy combination/variable.   In went the other SR20 and: they've remained

         I've always simply been certain to install all fuses in the same direction (according to labeling).    So: never having experimented with swapping them, I have no experience to discuss.    

         I do have science to explain WHY such MAY make an audible difference, which will follow.

         Were I not familiar with the theories, hypotheses and experimentation, that's gone on for so many decades before and since my years of higher education; I might never have tried a more expensive fuse.

          That's just my experience with the fuses in my Main amp.    There's been much more, in every other of the system's components, which have all had power supply modifications/upgrades (ie: faster/quieter rectifiers, capacitors, etc), before and after fuse swaps.

           It's been my experience, the better the rest of the power supply: the more obvious the fuse's contribution to sound.

There is actually a reliability difference in fuse TYPES. ATO fuses are more reliable than 3AB or 3AG.  Yes, in my days doing failure analysis, I found termination issues in 3AG fuses. There is a tiny tiny inductance with some cartridge fuses. Sonically? I think that was covered.   🤣

Some "Madison Ave. Engineers" suggest breakers sound better.  Hmmm, resistive bimetallic, small point contacts, inductor and magnet?   Not sure I would bet on that. 

Jan Didden has a lot to say on fuses and protection circuits. Cordell and Self a little.  Like everything, you have to pick tradeoffs. There is no perfect answer. Fuses may protect your speaker, but I can verify first hand, they so not protect MOSFET outputs!  They do not protect for instability. They do not protect against over-heating.  They do not protect for DC leakage or bias inaccuracies.  My take away is you should use a fuse or breaker in your mains line where it has zero sonic effect and go to more advanced parameter monitoring for everything else. 

@reimarc -

      Being so familiar with the LHC: you should also realize that the goal of it's use by the planet's best Physicists, is to determine (HOPEFULLY/one day) to determine what makes up the 95-96% of the universe, that the best in the world can't explain and how it all works.

       They and it utilize " the same basic electricity and electro-engineering principles, all the way to superconductivity. "  because that's the best they've got, to try to answer the questions how it all works.

        As I've repeated constantly in these threads: For centuries; humanity’s seen, heard, felt and otherwise witnessed phenomena, that none of the best minds could explain, UNTIL they developed a science or measurement, that could explain it.

         Anyone with a background in any of the natural sciences should be aware of those facts.

           And the Cargo Cult wants definitive reasons for a fuse to make an audible improvement?  

@curiousjim

Ok, here goes:

How can a fuse have an audible influence on the signal, when the signal does not even pass through it?

I don’t believe that a fuse does have an audible influence on an audio signal, for the reasons presented in my previous post, among others.

How can a fuse be "directional" when it deals with alternate current?

I don’t believe that an input fuse subject to alternating current would display any different properties or sonic signature regardless of which way it is oriented. While electric current flows from higher electric potential to lower electric potential, in the case of alternating current, the flow of electrons is bidirectional, i.e. electrons flow in both forward and backward direction.

In case of direct current, flow of electrons takes place in only the forward direction so the flow of electrons is unidirectional. Therefore, if there were directional differences in fuses, they would likely only show up when used in a direct current application, IMO.

@reimarc also asked about our experiences. Although I hear differences in a variety of different equipment, all speakers, and, to a lesser extent, cables, I have yet to hear what I consider a meaningful sonic difference between fuses after trying many including SR, Furutech, ACME, several from HiFi Tuning, and others.

Also, I have yet to read a comprehensive explanation of how a power line fuse should change the sound of an audio component given that regardless of the materials used, it’s job is to pass current up to a given amperage to a power supply consisting of a variety of other parts. I have also never read about any listening tests where the listener reliably identified different fuses without knowing which they were listening to.

Finally, you asked for opinions and I gave you mine. My system is posted (but not quite up-to-date) so you can see the gear I am using to develop my opinions. I do not care what others here believe or how they spend their money, so for those here like @rodman99999 who want to turn this into a contest or dispute of one side against another, I simply don’t care.

65 plus responses and nobody really tried to answer @reimarc ’s questions.  Not only can I not answer, but unless you improve the .10 cent fuse holder and the wires running to it, what’s the point?

I had to jump in once more: mitch2 made a note-worthy comment about the role of capacitors in an amp or pre. They are there to satisfy demand for peak power in highly dynamic musical passages. The quicker they respond the better - and the more they cost: here, high cost directly translates into audio quality.

Many contributions seem to try relativizing the role of what they call "science" in assessing effects of audiophile fuses, going so far as to claim we don't even understand the "true" nature of electricity. Well, as far as every-day electricity is concerned, I think Maxwell gave us everything we need to make accurate predictions (which is what science is about). Yes, on the quantum level we might still be in the modeling phase, but that degree of granularity bears most probably no influence on the audio experience. I mean, even the LHC in Geneva uses the same basic electricity and electro-engineering principles, all the way to superconductivity. Now, room-temperature superconductivity might indeed breed a new and better generation of audio equipment, but just not yet. And no, I won't be using liquid Helium anytime soon to fire up my audio gear. As for all matters in life the same tenet holds for scientific claims: extraordinary claims warrant extraordinary evidence! The audiophile experience should not be a religion, lest we fall into the trap of "believe" vs. "evidence". My original question should have been more focused perhaps: "Can anyone in this esteemed forum share  experiences - good or bad - with so-called audiophile fuses?" Formulating my question in this way should exclude theorizing on either side of the opinion-spectrum, namely dogma without supporting or damaging evidence. And to satisfy this demand, we do not even have to resort to Einstein or Maxwell, or Lord Kelvin with his infamous statement about human flight. No, we just have to sit down and listen: do we enjoy what we hear? Do we enjoy it more after exchanging one fuse for another? Do we perhaps hear new things in a familiar recording? It's really simple, actually, and quite down-to-earth. But it requires ear-wax removal - in the literal and metaphorical sense - to lead to accurate and valid and reproducible results. That's the only information I was after when posting my original question. Only AFTER we have the data from these experiences - hopefully with more users having similar experiences  (moving towards statistical relevance here), should we begin to make sense of our observations, and perhaps even formulate a new hypothesis trying to explain what we observed that cannot be accurately explained by existing theories. That's how science works, not the other way around.

I have no opinion on whether they work because I have not done any serious listening to various fuses.  But the current high end fuse that costs $600 makes no sense because, at that price one is probably better off bypassing the fuse.  It is crazy to be in a situation where you would be saying something like: "Thank god the power transformer blew fast enough to preserve the fuse."

       The adherents of the Naysayer Church will never accept that there exists a multitude of variables, when an accurate simulacrum of performers and their performance in a particular venue, is the desire/goal.

         If their result differs from that of others, the aspects that they can't discern CERTAINLY MUST BE the product of the others' imagination (OR, "snake oil).

             Of this they are certain: it CAN'T be THEIR system, room, or ears!

                                            Perish the thought!

I’ve seen so many threads, not this one, where an expensive power cord manufacturer claims are declared snake oil because it measures the same as the PC obtained from Amazon.  People forget that “science” is not a static thing and with time, our understanding of the ‘science’ changes.  So, like the op, I tend to trust my ears, but will admit to the possibility of bias.  The only thing that I know for sure is that when you hear a politician claiming something is “settled science”, it is time to find more tax shelters.

wolf_garcia

... If "magic" fuses actually did what they claim, everybody get on board with 'em....they don't and we're not ...

If your "magic" fuses don't do what's claimed, that's snake oil! Fraud! Now, thanks to the work of Tuttle, et al., the template has been created for you to profit enormously from your wisdom while also serving your fellow  audiophile. Here ya' go:

You Can Get Rich From 'Snake Oil'!

Cleeds...I have extensive personal experience with fuses, including testing a pile of Synergistic Research fuses a few years ago...they were useless and risky (inaccurate  current ratings) junk then, and still are silly and expensive nonsense. Quantum my a**. Call Nelson Pass or Dennis Had to discuss it further. If "magic" fuses actually did what they claim, everybody get on board with 'em....they don't and we're not.

Doesn’t the power supply include capacitors that store electrical power used by the device, including the capability to supply power for peak demands?  Shouldn’t the power supply be designed so that the current draw through the fuse should never exceed the rated value under normal use?  Otherwise, it would seem the power supply is under designed.  I believe some may be putting too much emphasis on the role of the fuse in the power supply chain.  Obviously, it is essential but, as long as it works properly, perhaps not a direct influence on the sonic end result?

I don’t know how to make a good sounding fuse, but I have discovered that a cracked fuse holder can make most any fuse sound bad.

If a system is intended to be used at a level well below its capabilities to deal with current, then it makes building the fuse easier, it would seem. The fuse can be set to pop at a much, much higher current level than any normal listening session would produce. So the fuses internal resistance and any audible compression effects from the fuse beginning to heat can be minimized. I used to have some piezo compression drivers that had little light bulbs in them that acted as fuses of sorts. Instead of blowing, they would take to glowing, which would effectively compress the output to the tweeter. This is fine for a PA system but probably not acceptable to most HiFi enthusiasts.

@reimarc The power supply doesn’t merely allow proper operation, it is that which is the source of the actual music. Simply put, the amplifier circuitry modulates the flow of that power through the speakers. Ceteris paribus, the better the power supply, the better the sound.

not the signal circuit itself but the part that supplies the power for proper operation.

@carlsbad2...when you mentioned 'slug', 1st thought 'metal bar, low gauge copper'; 2nd, a diy from an earlier 'confounded fused flail' that 'appeared' (not sounded, yet) worth spending less time on than you do...

But I applaud your efforts to fab and take a Good Slug @ it... aesthetics do count even for a lowly slug... ; ) 👍

3urd was 'homeless snail', soon to be ' budget escargot' ='d *bleah*🙄

@reimarc ....If 'lectric exotic at the super bunting autopsychoic sounds like fun:

0>60 under 2, 0>100>0 under 8 ; seconds, street version pending if not out already... 

The budget 2 wheel version:

...all it lacks is 110db air horns....  My 1st personal diy option...; )

@tksteingraber realize that the fuse replacement is just a short piece of conductor adjacent to the power cable.  I don't think you'll ever hear a significant effect fro different coppers on such a short piece of conductor, just so it is heavy (not thinwalled tube).  Now often the fuse holder is not great--it can't be soft copper or it will relax and not clamp the fuse.  Often they are .....clears throat....whispers....steel.  so a good fuse holder would be where to focus your interest. 

That said, I'm as audiophile geek as anybody so I buy high conductivity copper 5mm bar from McMaster car, cut it into fuse lengths on my lathe, and polish with scotchbrite.  I'll be glad to send you one if you want one.

Jerry

@reimarc -

     If your ears and system could determine/resolve the difference in presentation, between the mentioned XLRs; I'll bet that you'd appreciate what better fuses provide.

      As I mentioned: some come with a 30 day, satisfaction guarantee.

      Were you to feel them not worth the $$, you'd lose nothing but the time and postage expended, to return them/it.

       As an inquisitive scientist, isn't your interest piqued (that much)?

       If there's a Hi-Fi Tuning Gold fuse that fits your amp: $49.95* is all it would cost to sate any curiosity.

                 *ie, scroll down this page: https://www.vhaudio.com/fuses.html

        more: https://highend-electronics.com/collections/audiophile-tuning-fuses

as scientists we always stay on the shoulders of giants (Feynman citation, I believe)

This predates Feynman by quite a few years.  From Wikipedia:

[The] metaphor of dwarfs standing on the shoulders of giants(Latin: nanos gigantum humeris insidentes) … expresses the meaning of "discovering truth by building on previous discoveries".^[2]This concept has been dated to the 12th century and, according to John of Salisbury, is attributed to Bernard of Chartres. But its most familiar and popular expression occurs in a 1675 letter by Isaac Newton: "if I have seen further [than others], it is by standing on the shoulders of giants."

https://en.wikipedia.org/wiki/Standing_on_the_shoulders_of_giants

@reimarc ,

Kudos to you for a well thought out, balanced and logical opinion.

Thanks to everyone and your at times spirited responses. And no, I am not a "puppy seal" asking apparently innocuous questions only to stir up the pot. I am a scientist and a curious one at that. I learned that a fuse is indeed part of the circuit, in series, not in parallel: not the signal circuit itself but the part that supplies the power for proper operation. I also learned that the fuse-material itself (alloy, etc.) shares the characteristics of a resistor, one that "blows" when too much current flows through it. As such, it would make sense, that in a highly dynamic amplifier setting, for split-seconds a sub-optimal level of current would be available to amplify the signal in true fidelity. In so far, the use of materials that have less resistance and yet still fulfill their safety-valve function would make sense - at least theoretically. But what about audio practice? Will one actually HEAR the difference? Or let me re-phrase: will someone with average ears (in my case age-relatedly compromised) and a sub $50K system with enjoyable but probably not stellar performance hear such a difference?

Yesterday I went to the annual "Exotics on Broadway" exhibition in Seaside, part of the world-famous Monterey Car Weekend. Exotic supercars and so-called hyper-cars, some of them costing multiple millions of Dollars, are on public display there for everyone to admire and talk to the developers/dealers for free. If you are into state-of-the-art automotive "art", that’s a place not to miss. I do love looking at these cars, I admit. But driving one? My Tesla S leaves still many of them in the rear mirror, and doing so without the ear-splitting noise of a 1,500 horsepower engine. The same goes for my stereo set-up: I tremendously enjoy what I got in terms of delivering listening joy every night - with Bussmann fuses, mind you. But I also know, that certain tweaks can indeed make a noticeable difference: I recently replaced my Mogami XLR ICs with all-silver, shielded ones from Taiwan, and yes: even I with my compromised hearing could immediately hear the difference; and no: no confirmation bias here, which I thoroughly understand on a professional level, and in any case, the new ICs were rather affordable. So, would I be able to hear such a difference by replacing my Home-Depot fuse (which came standard with my all-tube preamp)? Perhaps, but I don’t really think so; also, because exotic fuses - if they have their audio reason to exist - would probably exerting their "magic" in an amp rather than in a pre - and probably in a much more sensitive, i.e. costly, one, than the ones I use. But that I don’t really know. What I do know, however, that as scientists we always stay on the shoulders of giants (Feynman citation, I believe), and yes, a fundamental characteristic of good science is not to be dogmatic (we do not "believe" in science), but critical nevertheless. Let the data speak. In my case, the "data" are being delivered to my analytical brain through my ears, and not through a sophisticated measuring device, which might indeed pick up differences from audiophile fuses, albeit - at least in my case- inaudible ones. So be it: I "measure" performance along the coordinates of enjoyment and cost, like - I am sure - do many of you. And with the data at hand, and your delightful and sometimes informative comments, I will probably abstain of paying hundreds of $$ for a tweak that I might not be able to hear with the gear, and ears, I got. Again, thanks to all!

@reimarc ,

Told ya...

I did not know that marketing is science. Then I am a scientist, cool. 😎

This reminds me of Elizabeth Holmes!

     "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)                        

      "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)

      "Heavier-than-air flying machines are impossible!" (Lord Kelvin, president, Royal Society, 1895) 

      "The bomb will never go off.  I speak as an expert in explosives."  (Admiral William Leahy, re: 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 (21st Century); and the advent 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/phenomena of Nature and/or, "reality" (our universe). 

     I haven't been in school since the 60's, but- at Case Institute of Technology; the Physics Prof always emphasized what we were studying was, "Electrical THEORY."         He strongly 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, Faraday)   

                  PERHAPS: that's changed in recent years and I missed it?

@carlsbad2  Thanks for the reply…got that was looking more for what you are using for slugs.  How to buy or make them? Metal type etc. 

wolf_garcia

... if an expensive item that has no impact on the sound of your system makes you feel better I suppose that has some value.

If a comment that lacks logic or the benefit of experience makes you feel better I suppose that has some value.

@tksteingraber Slugs are solid copper jumpers that replace the fuses.  No protection.  --Jerry

Audiophile fuses are generally supported by those who spent a pile on them and are wallowing in expectation bias. Magic Fuses have never gained acceptance by the vast majority of audiophiles and certainly not gear manufacturers as there is simply no need to use them when companies like Litttelfuse and others make great fuses that work properly. Fuses are simply tiny wires designed to protect your gear and are not part of the signal chain...period.  However, if an expensive item that has no impact on the sound of your system makes you feel better I suppose that has some value.

@noromance 

Visiting Chuck Miller's Millercarbon room at PAF gave me the opportunity to check in on Townshend Audio, a quirky British manufacturer of audio gear best known for its well-engineered and very effective isolation products.

Not entirely clear whether MC had a room with his personal kit that happens to use Townshend products, or whether his was actually a room representing Townshend. 
It seems Townshend would want to have a say in the gear used to display their products since the resulting SQ would represent the brand - maybe they did?

BTW, back to fuses, I have done the Teflon tape thing, and also used small orthodontic rubber bands across the tops of the fuse holder tynes to insure a secure connection, after first treating the end caps with a conductive material (i.e., ProGold, etc.).

@carlsbad2 when you refer to slugs what exactly are they, do you make your own or where do you get them?  Curious minds want to know 

Fuses have to heat up and blow to protect the downstream equipment.  So they have to have a significant resistance (to heat up) and as current goes up, they heat up, resistance goes up (a property of all metals) and they heat more and blow.  This isn't a problem for electric motors or household equipment.  but a high end amplifier can have dynamic changes in power requirements over a very short time which can be limited by the fuse.  If this happens to your air conditioner, it will still cool.  If it happens to your amp, it will still make music, it just won't be as dynamic. Bass will suffer as well.  

An audiophile fuse supposedly has less resistance and limits current less.  I have never bought one and don't plan to.

I replace fuses with slugs.  an overcurrent situation in an amp is very unlikely and when it does happen it is usually caused by user error.  There is a very audible difference in most amps replacing the mains fuse.  This is especially true of tube amps.   Also if your amp has fuses on the rectifiers they should be replaced.  

No your amp won't burst into glorious flames but if you can't get this image out of your head, keep your fuses.

I have tested the Swiss Digital Fuse Box that replaces the fuse with a magnetic current sensor and a relay, thus there are no heated components in the power circuit.  My opinion of this piece was that it was better than any fuse but not quite as good as a slug.  It is also cheaper than an audiophile fuse.

Jerry

@oddiofyl Give the Swiss Digital Fuse Box a try, but confirm with Mark if he offers no questions asked returns on it...I know he does on the Puron.

I bet you won't return it.

@johnfritter Interesting. I can't really imagine that combination of parts sounding good at all. 

This brings me to a question I’ve considered submitting as a topic for the group:

This is an "audiophile" forum made up of individuals (in most cases) with vast experience(s) in auditioning, evaluating, and commenting on those observations. Tryiing new things (or, reworking old things) is a component of the "audiophile" experience.

The question is: "Why can’t we offer some level of respect to those who try something different, hear something good and share those results with the group? Why can’t we try to embrace those findings and give the person the benefit of the doubt that they did, in fact, hear something? Be somewhat curious about those observations even if the basis of the technology sounds somewhat weird to us?"

I get it that the "science" may push back against all that you’ve learned and/or experienced. And, some have suggested that those who claim to hear improvements in those products, technology, or catagory are biased, duped, gullible, or even need professional psychological help.

I funded a survey here a couple of months ago related to a "hot topic" on this forum. It was determined (by those who participated) that they had an 80+% high confidence level in their observations of the product catagory. Many were on their 3rd or 4th upgrade of this product catagory. Then, there were the "deniers" who rejected the premise completely and, therefore, did not try the product. And, there were those who conducted their due diligence, gave it a shot, and heard nothing. As the creator and admistrator of the survey, my final thought was that we should create a GoFundMe account for the "deniers" and send them to a place where there is a high confidence situation and let them listen to that system.

Personally, I believe that if something changes in the environment of the signal or power path, it’s going to change what happens at the other end. It’s feasible that those changes will be audibile, even it is isn’t measurable. I’m not a scientist. But, I do enjoy being proven wrong. It means I learned somthing that day.

Intellectual humility has it’s benefits. Perhaps, even better sounding systems if we’re willing to give things a try?

I tried 2 different fuses; I won’t name the brand but it was a waste of $300 however I did think the fuse is a bottle neck to a high quality power cable which is why I was willing to try them.

Last week I bought the Swiss Digital Fuse Box. Why? Because the week before I bought the Puron plug in line conditioner (both from Mark at Verfiaudio).

I was so impressed with the Puron and Mark, I trusted his word, and because the solution made sense; replace the thread of wire in the fuse with a solid tube of copper. The SD Fuse Box should kill the “audiophile” fuse business. 

What is an electrical fuse? An electrical fuse is a safety device that operates to provide protection against the overflow of current in an electrical circuit. An important component of an electrical fuse is a metal wire or strip that melts when excess current flows through it.

What is the rating of an electrical fuse? Fuse rating is the maximum current that a fuse can safely carry before it blows or melts. It is usually expressed in amps (A) or milliamps (mA). For example, a 5A fuse can handle up to 5 amps of current, while a 500mA fuse can handle up to 500 milliamps of current.

Advise 1: If you think the manufacturer has installed a fuse or given a power cord that is inferior and no good, then don't buy that piece of equipment, period. Because you deserve for the money you are spending a complete piece of gear with compatible accessories (fuses, power cords, feet, casings, etc) to get the best out of it.

Advise 2: If you really think you need to spend $$ on some expensive "audiophile fuse," whatever that is, then please make sure you stay within the same ratings as recommended by the manufacturer. Do not exceed current/voltage ratings under any circumstance.

There are those who think somehow some way, the fuse type will impact the sound quality and changing fuse will give you different flavors of sound! They also believe in Santa Clause delivering toys during Christmas, Tooth Fairy leaving $ under the pillow when their teeth fell off when they were young as well as when they get older, etc.

Psychology

Was unaware that graphene is a superconductor. I was of the understanding that it's a semiconductor 

It’s pretty easy a buzz 🐝 fuse is a steel zinc combo around 17 on the metals conductivity index.  Copper , silver are in the 63 , look up metal conductivity index .

some are using super conductive treatments, That help like Graphene. 
they do make a difference , but synergistic $600 fuse is very good I am told to put 1 in the chain ,but I am not will to send that ,I can get it Get it for $500 but still too much . I do use the Synergistic purple, ad Hifi tuning Copper  fuse .

@noromance If you are referring to the Pacific show in Seattle. He was there I am not sure if it was his rig or not. I do remember not wanting to stay in the room tho. It did not sound good at all. Honestly I don't think there was any attempt to display the system. I am honestly not sure what the point of his room was.

I spent the weekend at that show and went back into most rooms a couple times as some switched up the gear. Not his tho it was almost creepy and I'm not sure why. I was actually interested in talking to him a bit, before I went in his room.

They come in nicer boxes than standard fuses. Not sure how they improved my sound. However not super expensive considering the cost of everything else. But if I was on an audio budget I would definitely pass. 

Here's a fun trick. Wrap a few turns of masking tape or PTFE tape around the glass part of a fuse making sure not to touch the end caps. Leave say, a 1mm space. 

Do a before and after test. 

Apparently, MC hauled his entire rig to a show, to um, show it off.

Stereophile

Where’s millercarbon when you need him?

Down at the nearest body of water trying to walk on it...

Though I have heard differences in fuses. I believe the jury is still out as to whether they make a 'true' difference. In the end, it might just come down to how they are mated with the fuse holder.

My 2 cents...

Concentrate your efforts/money on better cables before embarking on this journey.

B

I think the Swiss Fuse Box sounds like it has more potential....   I have never believed in audiophile fuses.... never tried one , but if I wanted to experiment the Swiss Fuse Box would be something I would be open to.