fuses - the $39 ones or the 85 cent ones

Undertow, thanks for the link, at that price it is worth trying a whole bunch and it seems to have all the "bells and whistles" of the higher priced fuses.

The Acme site suggests that one must be sure that their equipment must be compatible with ceramic fuses; why would a ceramic fuse not be compatible if it the right speed, size, and amp value?

Pubul57
Just like the others ceramic is automatically a "Slo Blow" fuse and some components only come with "Fast blow" type, however most if not all should be able to take a slo blow, but you might want to ask your manufacture, I did and they even said I could go up ONE amp size on top of using a slo blow over a fast, most put the fast because they are super cheap and can be bought in the thousands for about 10 bucks.. Keeps them building components for years on one batch.

Well, I'm going to get the Acme and compare them with my Isocleans. At $12 bucks a pop, with silver, sand-filled ceramic, and cryogenically treated they seem like a real "bargain".

Pubul, we really have nothing but "classic testimonials." And of course, for me all they give me assuming they are credible, is the interest in hearing it myself or at least checking with my friends as to whether they have heard it and, if so, how it sounded.

I have too often tried tweaks that seemed to make no sense but proved quite important to rely on that judgment. At some point on many testimonials, I have tried tweaks, etc. and to my personal satisfaction have rejected the testimonials. An example is most ac filters and all surge protectors.