Why don't amplifier Companies use high end fuses?

My main criticisms of Magic Fuse performance are the claims of what the fuse can accomplish. Measurable directionality only means that possibly current flows a TINY BIT better in one of the directions and that phenomena is rendered meaningless in an alternating current. I get that better contact between the fuse and holder is a good thing, but it's when the current gets to the rest of the electronic bits, rectified, modified, deep fried and otherwise,  the benefits of whatever inexplicable and imagined bees wax/voltage bombardment/psuedo quantum whammy/graphene coating/ or any other sales based baloney is hard to swallow, although swallow it Fusers do…all day…I tested the bejeezus out of a pile of SR fuses (embarrassingly, but had to in order to ethically allow myself to continue questioning this crap) and "proved" if only to myself that I can't swallow this particular stream of fuse goo. Others enjoy it, feel it makes cellos sound better, but until somebody explains what's what with the design goals of Special fuses I'm not swallowing any of it.

Al,

Geoff is 100% correct!

I have 100% verifiable proof that fuses are directional and need to be installed in matched pairs. Simply stick one fuse in one ear and listen and then place another matching fuse in the other ear! I guarantee you that it will sound different even with just one fuse and that ONLY two matched fuses will produced a balanced even soundfield. I guarantee it!

Geoff and his acolytes will be delighted with the scientific demonstration of the FACT that fuses make an audible difference. Furthermore, the fact that fuses need to be installed in MATCHED pairs means more sales and more profit.

Do you think that that tiny bit of difference remains the same once it's been rectified, modified, deep fried and otherwise? Seems to me that that small and insignificant difference cited plays a larger role once it goes through all the various permutations before it comes out. 

Jitter, no matter how small, distorts more and more as it goes along as does any kind of distortion. It's funny how some are now admitting that there is a difference but it just simply can't explain why the sound changes yet that very same criteria most certainly applies to everything else. You can't have it both ways.

All the best,
Nonoise

One last comment I will repeat that I think I made eons ago early on in teh red fuse thread is taht I ahve also seen cases where fuses only blow partially ie the filament is partially but not totally melted. More prevalent with slo blo fuses. Obviously this is just another case where all fuses are not created equal however replacement with any good quality new fuse is all that is needed to rectify.

So yes fuses can be delicate little beasts and do matter but like most of high end audio the returns on more expensive products are diminishing at best and nill in some cases at worst.

They are also not complicated devices and as difficult to understand as some vendors make them. Its reasonable to expect that some portion of the discussion about them is just noise but hey only one way to find out if one actually cares. Personally, I’d focus on making sure my fuse is good quality and in good working order and look pretty much anywhere else (except Machina Dynamica for example) for things that will make clear significant differences in sound quality.

But hey some people like to go where no man has gone before. The question then becomes how much of their tales is fact versus fiction.

I think it's utterly worth it to invest in extremely high quality and safely designed products with companies with an unimpeachable reputation as leaders in their field. That's why I'll spend the 2 bucks on Littelfuse products…I can hear the difference as without them in my gear, there's just no sound at all.