However, while I see no reason to dispute the possibility that it might explain the sonic benefits that have been claimed in at least a few applications, when it comes to many or most other applications it seems to me that there are some issues with it:
1)Regarding the following statement …
All fuses have a solid element which is modulated by the signal that travels thru that element. Circuit breakers and my preference magnets are less prone to modulation and vibration created by the passing of signal. They will generate less interference by design or by material or both. Much of this interference in a standard fuse will be reflected back and forth along the conductor...because of the change in boundary speed and shape at either end of the element.
… As I’m sure you realize, in many circuit applications fuses conduct neither a signal nor a current which varies as a function of signal. Or a current that even varies at all, aside from the repetitive and nominally sinusoidal variation within each 60 Hz AC cycle in the case of mains fuses. The current conducted by fuses in most preamplifiers, most source components, and even fuses in some power amplifiers (if they are biased in class A and provide large amounts of energy storage) has essentially zero variation from cycle to cycle. So I’m not sure that your statement has broad applicability.
2)Wouldn’t the shear wave effects you have described, to the extent they may occur in a one inch or so length of fuse wire and its associated boundaries, be completely swamped by corresponding effects in all of the rest of the wiring in the component, as well as in external wiring such as the power cord, as well as in the electrical parts in the component?
As you pointed out yourself:
… all the solid materials that make up any system are in a continual state of motion. The fuse element is the most simple of all the solid conductors in any audio system . Its understanding and refinement of application could be applied to all other solid materials and shapes in a sound system.
3)Most fundamentally, what leads you to conclude that the effect you have described, as it occurs in a fuse, would be great enough in degree to have audible significance with the **consistency** that has been reported, regardless of which of the extremely diverse applications I listed in my previous post is involved?
In any event, thank you once again for what I consider to be an excellent attempt at an explanation.
Best regards,
-- Al