Fuses that matter.

Geoff, I would put it that all of the technical rationale, technical data, and technical speculation that I have seen offered to explain the claimed benefits of expensive fuses, and Bryon has done a particularly noteworthy job of unearthing much of that, has been shot down on technical grounds by me, Roger, and others.

What remains is anecdotal evidence. What I have said regarding that is that I suspect that SOME (but not all) of that evidence is the result of either failure to recognize and control extraneous variables, or system dependent effects that in other systems may make either no difference or a negative difference, or misperception.

The reader can (and will) make his or her own decision as to how to proceed.

Regards,
-- Al

Almarg, you said!

"What remains is anecdotal evidence. What I have said regarding that is that I suspect that SOME (but not all) of that evidence is the result of either failure to recognize and control extraneous variables, or system dependent effects that in other systems may make either no difference or a negative difference, or misperception."

I'm not sure what you refer to as "anecdotal evidence" can be so easily dismissed. I'm referring to evidence that the aftermarket fuses work, not how they work. The aftermarket fuses from Hi Fi Tuning, Furutech, Isoclean and perhaps others have been thoroughly reviewed in the press, usually with rave reviews. Every important audio magazine has reviewed them. There is also the evidence of many users of aftermarket fuses who have posted on the subject on a number of forums over the years. Could this really be mass hallucination, placebo effect, expectation bias, or some sort of tweak frenzy? I tend to doubt it.

Yep. No doubt it could be. Nothing has been proven as best i can tell.

Mapman, you said,

"Yep. No doubt it could be. Nothing has been proven as best i can tell. "

Nobody is saying there is proof or there even needs to be proof. But there is evidence, and plenty of it. This is all a little bit like the last holdouts in 12 Angry Men - "You can't prove he didn't do it," and "You can throw away all the other evidence."

It is very possible that the reported observations regarding benefits of certain fuses are biased.