Determining current flow to install "audiophile" fuses.

Much discussion here about trusting your ears and how science cannot explain everything and yet, I am skeptical about the level of sonic difference (if any) that can be attributed to changing a fuse.   I am exponentially more skeptical about those who claim to clearly hear sonic differences between the installation direction of a fuse.

Have any of you who hear these differences ever really put that belief to the test?  I don't mean changing the fuse and then proclaiming how the sonic difference/improvement is clearly evident but rather a more challenging method of testing your ability to ascertain differences or improvements after changing a fuse?  

Here is a challenge;

1. Select two fuses that can be easily identified (e.g. Red and Black, etc.)
2. Insert one of the fuses in whichever of  your equipment you believe displays the greatest sonic impact from changing the fuse 
3. Listen for a reasonably extended period of hours to days using a variety of your familiar music, and take notes so you have a record of how the fuse sounds to you, and then repeat with the second fuse - keep track of which fuse is which in your notes
4. Enlist the help of a spouse or friend to install one of the two fuses and keep a record of which fuse is installed, but do not let them tell you which it is (for the test, make sure your spouse/friend installs the fuses in the same direction as you did under steps 2 and 3) 
5. Listen again for a similar extended period, compare what you hear with your initial two sets of listening notes and then write down which fuse you believe is installed
6. Repeat this process at least 5 times with the spouse/friend switching, or perhaps sometimes not switching, fuses but using each of the two fuses a nearly equal amount of times
7. At the end, let us know how many times you correctly identified which fuse was installed

If the differences between fuses are as profound as described in this thread, then I suspect many of you will guess correctly every time.   I would be curious to hear how you make out, and even more curious how you you do using the same procedure applied to the directionality of one fuse...any takers....Geoff?

Lol Your test procedure is even more complicated than The Amazing Randi’s Million Dollar Challenge test procedure and that’s saying something. If you’re so high on your test why not do it yourself? Let us know how it works out.

Now I understand. The ability to hear differences between fuses and between directionality of fuses is limited to those having paranormal abilities.  Maybe Randi's test should have been to choose the best sounding between two fuses, without hearing them.

I can also understand how listening to two fuses and choosing which one sounds better would be a "complicated" procedure to someone who possesses a supernatural ability to intrinsically and immediately select the better sounding fuse.  

I don't do it myself because I don't hear a discernable difference between fuses, but I am open to trying to understand, just not so open to BS.

Why, it's as if just bringing up the subject of controlled blind testing is supposed to scare the fuse affectionados into submission.

Don't be scared Geoff, defender of all things unexplainable.  This fuse issue has been discussed ad nauseam.   We have heard the science, and how the delta in the resistance offered by different fuses, or by changing the fuse direction, is miniscule, and likely less than the difference of increasing the length of your speaker cables by one inch, for example.  We have heard from respected equipment designers, and others, whose dissenting opinions have been disavowed.  Mostly, we have heard about the profound sonic improvement these aftermarket/boutique fuses offer to those who have replaced the previous version of such fuses with the latest version, or to those who have replaced stock fuses (aghast!) with "audiophile approved" fuses.  More power to them.  

If someone hears a profound improvement in their system for a cost of "only" $120....or $174, then great.  My current system has 10 fuses, so I could easily spend between $1-2K replacing fuses and I would hope to hear a significant improvement for that money.  I just purchased new amplifiers and if I switched back to my previous amplifier, I could tell you every time which amplifier is in the system, blindfolded or not.  Why should a simple test to determine the reliability of sonic differences between fuses be so scary?  Why wouldn't those spending over $100 per fuse want to know if they are really hearing a difference? Is the emperor not wearing clothes?

Oregonpapa,

I have been doing this for a long time too. I will not presume to tell you what you hear, no more than you can tell me what I hear, or don’t hear.

Comparing whether one believes in the sonic improvement of a fuse with whether one believes in God is the type of thing that stirs the pot here. Particularly when you say,

And why you naysayers rail with so much negativity

I don’t think you will find "so much negativity" in my posts, just a challenge to those who hear such an improvement to really try it for yourselves in a controlled manner.....maybe you have already done that but I have not yet seen a post here from anyone who has. Geoff’s immediate response about controlled blind testing rearing "it’s ugly head" the "Amazing Randi" and trying to "scare the fuse affectionados into submission" is as negative as anything I posted. Even so, I find Geoff’s posts semi-humorous and consider our back and forth to be friendly banter. To proclaim that all who do not believe in the transformational effects of an audiophile fuse are "railing with negativity" is both not accurate and not helpful.

"There are many reasons a test can yield negative results so one must take results from any test with a grain of salt."

 Agreed but, OTOH, many things we live with are subjected to testing from structural materials tests to make sure building materials meet their design requirements to crash tests for automobiles to air and water quality tests.  Some of the tests get things mostly right and others not so much.  With this audio stuff, it seems that testing has not "proven" anything, particularly as related to sound quality.  Sometimes the tests confirm why something sounds poor or good but other times there seems to be little correlation.  Maybe the tests are not always testing the correct parameters and/or maybe there are parameters that folks are unaware of, or for which there is no accurate testing equipment.

I will say that I did not know Randi inserted himself into the cable controversy or that he actually has a personal history with you and your products Geoff so I will chalk that up to "you learn something every day."  My knowledge of him was related to his paranormal abilities challenge.   Now I understand your response better.

Yup, fire for sure if you have not oriented your copper rods in the proper direction😎