Why don't amplifier Companies use high end fuses?


My equipment - Raven Integrated Reflection MK2 tube amp 58wpc. / Lumin A-1 DAC Streamer / Synology NAS / Isotex Aquarius Power Conditioner / Furutech Rhodium Plug / Sonus Faber Amati Homage Tradition speakers.  

I have read thousands of comments on upgraded fuses improving the performance of sound.  I am very open minded but not sold either way.  So, the question I have is....if fuses were so important, than why don't Amplifier companies all install them as OEM equipment?  To me, if they are as good as people say, that would provide companies who use them a competitive advantage?  

Every High End Audio store I go to in Phoenix have told me it does not make a difference and is a waste of money.  For the record, I have fuses purchased at an automotive store for under $10 and I think my sound is awesome.  The Company that built my amp tested the Synergistic Fuses and he emphatically said there was no difference.  

If I were to try a fuse for fun, given my equipment, what would your recommendation be to try?  
willgolf
that PS Audio piece is a great explanation...so it seems there are high end companies that use high end fuses
Ahem, sorry, there was no explanation. He said he didn’t know why they worked. If a manufacturer doesn’t know how they work how can he possibly design one for his product? Hel-loo! What he actually said was he uses circuit breakers, not fuses. He was very brave to make the video. 🙄
The PS audio guy said they use good quality fuses not high end or the most expensive. Big difference! Its been asserted since the start of teh Red fuse thread that not all fuses are created equal but good quality ones can be had for much less than "audiophile" fuses.

His explanation is a good one. Nobody know why audiophiles hear or prefer what they do so no reason to put in a more expensive fuse that has no clear advantage over another other than the fact that some people may hear a difference and like it better.

Similar to most high end/audiophile products in general except more so. Except fancy fuses only cost 3 digits not 5 or six so easier to dabble with if one is so inclined.

His explanation is consistent with the viewpoints offered by myself, Almarg, Atmasphere and some others I believe. Not with Geoffkait’s who seems to be mostly interested in muddying the waters and providing some comic relief along the way to make it more digestible.

The problem is still with the people who insist a fancy fuse ALWAYS makes a difference and if you don’t hear it you are defective which is simply not the case. They are providing very misleading information that benefits only the sellers and not educated buyers.
He said in some products he used ceramic fuses, in some circuit breakers.