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
Been there, done that! Well, not me personally - especially now that I’m free from the house AC altogether 🕺 - but cryod Hubble outlets, cryod Romex, and cryod circuit breakers, even entire audiophile grade panels, were sold 15 years ago. You could also have had your Romex broken in on the Cable Cooker. Of course, the enterprising audiophile can do all these things himself today. Hel-loo! Speaking of which, anybody cryo his high end fuses? I kinda doubt the manufacturers have the time or inclination. 
kosst_amojan
The reason you can’t measure feet and springs is the same reason you can’t measure the difference a fuse makes. It’s because it makes no difference. Those who claim it does bare the obligation to prove it and so far there’s no proof. It’s just your mind telling you that expensive must sound better so you hear it.

>>>>Wow! Hey! I don’t think I’ve seen anyone make such a uh, bold statement in years. Maybe you should consider changing hobbies. I don’t think this particular hobby suits your temperament or scientific inclination. Didn’t you get the memo? There is no obligation for anyone to prove anything. 
kosst_amojan
.... you can’t measure the difference a fuse makes. It’s because it makes no difference. Those who claim it does bare the obligation to prove it and so far there’s no proof.
Pardon me, but no one here owes you anything at all. No one here is obligated to prove anything to you at all. No one here is obligated to conform to your notions.

I don't know why I keep doing it. It's like some weird compulsion. Maybe my life doesn't have enough fantasy and fiction. I should probably go back to reading Dune.


kosst_amojan

I've made this point before, but I'll make it again. Anything that can be heard can be measured. I don't understand why some of you think that there are some characteristics in audio that don't have a measurement signature, but that isn't the case. You people attribute qualities to a fuse that most definitely would reveal themselves through a spectrum analyzer. But they don't. One can only conclude that's because it makes no difference at all.
This explains how components with same measurements can sound different.  Thanks Julian Hirsch!
Whoa! What? Did he just say that? Julian Hirsch famously said all amps that measure the same sound about the same. Not different. Hel-loo!