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
Again, proof that once something valid is established, it's off on another laughable tangent we go. Where, in that video, did Paul McGowan pander to snake oil? Or Steve McCormack for that matter?
Exactly nonoise!  My experiences with Steve McCormack have always been based on what is heard not a belief, myth or fable. He engineers a solid design and chooses each capacitor, resistor, wire, etc. to maximize the sonic performance of his gear. I wouldn't want to own components from designers that would do otherwise.  

My guess is that a great number of equipment designers take wires, fuses, directionality etc. into account.  As Paul McGowan said on that video, He's an audiophile too!
Just to be clear, there was no "proof" of anything.

A fuse was changed and he heard a difference. Resetting the original fuse with better contact may have produced a difference as well.

Almarg and Atmasphere have both stated this I believe and that is consistent with my experience as well.

Again that’s not to say all fuses are created equal and some may in fact work better than others.

So the truth as in most cases is most likely right square in the middle and extreme views or blanket statements do not cut it.

Expensive products with nothing to back up extreme claims should be questioned. Those who object are helping nobody but the vendor. Personal attacks should always be right out. The usual high end audio story.
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Mapman, sadly, the mildly interesting theory of the flakey fuse holder was debunked. Didn’t you get the memo? 😳 Your excellent use of name dropping notwithstanding.