Replacing fuse

pbnaudio
Geoff,

Any fuse supplied to NASA or any other Aviation Enterprise must be tested and supplied with documentation detailing repeated tests detailing that it works as intended. Hardly the case of all the BS that souround “Audiophile” fuses. The kind of testing and documentation that is provided by reputable companies like Bussman and Littlefuse.

>>>Now you’re being ridiculous. Audiophile fuses are not (rpt not) intended for aviation or space applications. Nor are the stock Bussman or Littelfuse used for either aviation or space applications. Follow? Besides you seem to be blissfully unaware of the data sheets supplied by HiFi Tuning detailing the test results of HiFi Tuning fuses and other brands of fuses, including stock fuses, not to mention cryod fuses vs uncryod fuses and fuse directionality.

Other Aviation Enterprises? Did you make that up yourself? Do you mean like hang gliding? Drones?

I guess one way to look at this is quite simple. Replacing the 6.5A fuse with an 8A is perfectly fine..........until it isn’t, but then it’s too late. Beyond that I have to take exception to a comment made by @auxinput. In his post he made the following comment...
"Generally speaking, a higher amp fuse is a thicker wire with less resistance. It will allow more current and faster current through to the device and the result can be improved dynamics and punch/power in the sound."
While his point is theoretically valid consider this....
The speed of electric (electromagnetic) field propagation in copper wire is slower than in vacuum by a factor referred to as the velocity factor. The speed of electromagnetic waves propagate in vacuum is 299,792,458 meters per second. The velocity factor for a 12-gauge copper wire copper wire is about 0.951 (according to this source). Therefore, the speed of electricity in a 12-gauge copper wire is 299,792,458 meters per second x 0.951 or 285,102,627 meters per second. This is about 280,000,000 meters per second which is not very much different from the speed of electromagnetic waves (light) in vacuum.

My point, respectfully to @auxinput is that if you can hear a difference in the thickness of the material in an 8A fuse vs. a 6.5A fuse then dude, I want your ears! This just seems like a logical fallacy to me.

Not meaning to add confusion to the issue but the current is alternating in most circuits where fuses are used (i.e., AC circuits), thus the net velocity of current is actually zero for almost any delta time.

Geoff,

No documentation like this for an example 

http://www.littelfuse.com/~/media/electronics/datasheets/fuses/littelfuse_fuse_325_326_datasheet.pdf...


I purposefully picked the ceramic body ones - this way -  should you decide to buy some,  you can color them with your Crayons to any color you'd like 

Good listening

Peter

Stubborn cuss, ain’t he? God gave you two ears and one mouth for a reason. I don’t subscribe to any fuse or cable manufacturer that doesn’t control directionality. I don’t even care if they’re UL listed or not. Whaddya think about them apples? 🍎 You are free to do whatever you want. Live and let die, I always say.