Why don't amplifier Companies use high end fuses?

The fact that kosst is unable and unwilling to " try " a few of these simple tests, using his ears, says to me, that he will never really enjoy his music system, because, he is leaving so much on the table. He is disturbed, as he cannot let this go, thinking he will change any of us. I suggested a simple fuse tweak, that all of my musically inclined family and friends can hear ( on their systems as well as mine ), but he carried on about the fuse getting stuck in the holder. I can go on, but the fact that he needs proof, it is in the listening, and he is unwilling to try. He probably could not hear these differences anyway, and he must be afraid of that outcome. Come on kosst, let's have some more, because, you cannot let this go, and I am having fun, even though you are annoying.

I completely agree with you, that all that stuff makes a difference. Am I to assume, that all of this, can be measured with equipment, because the ears can pick up on it as well.

@kosst, when you built your diy amplifier, did you try different " isolation feet ", such as brass or metal cones, or the rubber type, because, there is a huge difference in the sound of an amp heard through the speakers. I am not sure these differences are measurable, but certainly audible. One would have to try it though. Steve McCormack, when he started the Mod Squad, shared with listeners, that there was an audible difference in these isolation things. It was up to " us " listeners to hear it for ourselves. Now, there are so many of these devices, of all designs and materials, at all price levels. Many specific to equipment, speakers and so on. I do not claim these can be scientifically be measured, but I do claim they are audible. Again, one would have to try them. This is my biggest beef with you, that you are so closed minded as not to try, and listen. With so many money back guarantees offered, you have very little to lose, other than some time. You do not rely on your ears. Again, I feel you are at a loss. I will continue pursuing these tweaks ( snake oil to you ), because, I enjoy the experimentation, and make up my own mind, by listening. I do not care if it is measurable through equipment, as, I am not an engineer, but I was a musician ( vocalist actually ), and have trained my ears to many things. I want to point out, one does not need to be a musician to hear much of this. Two pre amps ( amps, cd players, d/a converters, etc.) can measure quite closely, but sound quite different. This is the world of high end audio.