Why don't amplifier Companies use high end fuses?

Interesting discussion, With the regards to the ability of a fuse to make a noticeable difference in SQ, I have to wonder how many serious audiophiles ask about fuses when auditioning new equipment. Do any know based on how the component sounds if a 'better' fuse is being used? 
I would think most would simply upgrade the fuse after a time, and bear witness to an improvement (or not) from that point on. 

As far as having the mfr. use a high end fuse, I don't think that is going to ever going to become a standard. Circuit design, and the incorporation of more high end audio components will always be a priority. Of course, many might consider a fuse being an audio component if it makes a difference you can hear. But if you do, then I think you also have to accept the fact that other design factors may affect  how big a part the fuse plays in the overall performance. Like would it be as significant as a difference in the build up of tolerances between one production unit to another?

The differences between perception and reality are real, no matter how small they are. 
It is a shame, all the artists who will never know how much better their music would sound by changing power cords and fuses .

I might argue, while agreeing with you in context, that hearing is a 'sensory function' , perception is what a particular individual experiences. 
Let's take the 'fuse' improvement hypothesis for argument's sake.
Generalizing that those who do not change the fuse, or power cord, are 'missing out' is a huge assumption. When 'you' in fact may be the one missing out from what someone else hears using a 50c fuse.
You can't get around perception. Without it, our brain would not be able to 'fill in' small details in a variety of stimuli. Obviously, the condition of our sensory organs is also a player. 
There are so many factors related to our acoustic environment, personal physical condition, like an individual's perception, that changing a fuse is a drop in the proverbial bucket when it comes to hearing an improvement that can be shared. Notice I said, an 'improvement'. I will not argue that there can be a 'difference', no matter how small, even measurable. 
I will go one step further, if the only variable is listening the next day, in the same exact physical environment one would perceive a difference just based on their personal condition, like brain chemistry at that time. IF you want to argue, leaving everything the same except either the fuse or power cord, etc., will also provide a noticeable difference of the same magnitude, then that's fine. I can argue about the physical world, but never about perception. If you hear it, and you like it, that's all that counts. All the rationale and explanation need not take that from you. I know I am not disagreeing with the Flat Earth Society here. Whether it's an opinion, or a perception, it is always our own. 

>>>>I disagree. The weather, time of day, and things you might have done to your system either on purpose or accidentally as well as other variables must be accounted for. There is also break in and warm up to consider. It is certainly not black and white as you suggest.


What I meant is if you could hold or control all the variables except the human one, there could be a noticeable change from one day to the next. Sorry, if I was not more clear.

But If you know in your own mind it really works, then there is nothing to argue about.

But generalizations like ’most’ and ’thousands of people’ means nothing to me without empirical evidence. If highly regarded artists as well as audio and recording engineers were also to support it, I would certainly consider it more seriously.

There are scientific studies done that prove differences between reality and perception. It is not philosophical.

BINGO! 🎉 But not from guessing, from experience. See the difference? 😀

Of course. Did I ever deny you or anyone else experienced a difference?
Never. As far as a universal improvement I am very skeptical.

I’ve played with power cords, heard differences, rarely, and never what I would call significant.

What I have ’seen’ was in the pre-HDMI days, between 2 different component cables and the resultant picture on a display. Significant, close, noticeable to me. But there are enough variables like different components which is why I did NOT see a difference on another display. But it was always repeatable on the first display. That’s why one has to be careful about generalizing their own experience.

I suppose in the end we can say, never let 'how you got there' overshadow the joy at your destination. 

Seems the discussion is losing energy, or a fuse blew! :)

Happy evening to all!