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
If ear witness testimony is often wrong how do we decide what to buy ? I would always prefer the less expensive stuff to sound best and for tweaks and cables to never help. But hasn't  worked out for me...
When I start listening to the difference sound for which direction I installed a fuse, I'm not listening to music anymore. I'm searching for extremely subtle changes in sound quality that may or not even be there, but certainly ignoring a great set of chord changes, a terrific session with a piano, deft fingering on a violin.
+1.  Exactly reason I prefer a boombox to Agastino Momentums.  I dissect the sound with Agastino and don't enjoy the music.  Is the air, resolution, bass ... real or product of Agastinos.

I like music better than sound. I guess.
Yep, me too.
"Naysayers, you can't go through life using conjecture, insults, snide remarks, and a low and transparent level of sophistry and have any credibility"

+2 @nonoise - You couldn't have said any better. Sadly, it didn't sink in...one member here continue to blah blah his DIY skills based on a F5 clone. I mean anyone can put together an amp with off the shelf parts with proper instructions. 

When you think about it, the notion that a fuse can make a difference is not that implausible. If, as most designers of high-end audio electronics will admit, the kind of wire used for a component's internal wiring can make a difference, then why not a fuse? After all, the job of the fuse is to melt when a certain level of current is reached, so might there not be differences in how various fuses react to current at lower levels, possibly constricting or otherwise influencing the power used by the component?

Based on my experience, the stock fuse don't sound bad, in fact they sound just fine. In my system, upgraded Fuses improved the overall sound with slightly better dynamics and transients. 

As with any tweaks, the level of improvements may vary based on the components design and overall implementation. 

If you hear a difference with upgraded fuses keep them, if you don't then simply return them. It's your money and your system, do what pleases you to make it sound better! 

Peace out! 
@jakeman 
Waste of money . I don't think you will hear a difference in voodoo fuses or magic clocks or super expensive cables . But hey , its our hobby , so if you have money that does'nt interfere with monthly bills , have fun !
You need a higher resolution system to hear differences in fuses and clocks but cables??     What do you have for a system?