I just got on to the forum to speak of this issue of fuses which have been altered from their known thermal parameters, and have not passed extensive UL, CSA or CE, etc approval processes.
Manufacturers can screw around with all kinds of components and arrangements of such within the gear and almost nothing will come of it, IF it has passed successfully through the electrical approval processes.
Messing with the AC fusing interface is the quickest way to run afoul of approval agencies, governments, utilities, and insurance companies. and that's just to start.
Fuses and their use are one of the most messy areas to be fooling around with, regarding electrical devices... when it comes to the situation regarding, for example, insurance companies. Or the law.
I would not mess with that, in the same way that a doctor does not operate on dirt floors in the open, with bare hands, anywhere in the developed western world.
It's an accumulation of potentials for failure and sooner or later, the lightning will strike. It is an accumulation of risk that an intelligent person would never touch with a thousand foot barge pole.
The prospects for the doctor, when finally brought to court, would be very bad. Never mind what happened to the patients.
I do understand that fuses do sound different than one another and fuses are one of THE bugaboos of audio. many (audio) people have no idea how much of an effect they have until they try fooling around in the area of AC fusing. trying different fuse types and designs, etc.
But fusing is critical, for all aspects of safety and was not principally designed for perfect complex dynamic flow in V/A scenarios. it was designed to prevent issues connected to safety of the environment and the people within it. for fusing...that remains it's core point in it's very existence in concept and reality.
The problem for audiophiles, is that those basic and fundamental parameters do indeed flow in a direction that is contrary to our desires.
Be that as it may, the point of what a fuse does to complex dynamic signals shall remain in effect, and attempting to ameliorate that aspect, in a direct way, does indeed remove the fuse from it's correctly specified operational parameters and function.... and well......