Experience with high end fuses????

"The only way I have totally proven that they do in fact work by extending power and frequency response over standard and ceramic fuses is to actually replace every single fuse in my signal chain. Reason for most not getting full results is they start with one or two and hope for the best"

Absolutely true Undertow.....This has been my experience too......

Well I received a HiFi Tuning fuse and campared it to the Furutech. bear in mind this is for my sytem only. The HiFi sounded more open in the vocals and seemed to have more extension. When I switched back to the Furutech I felt like the midrange got sucked back and I had to look at the floor as the sound stage dropped.. keith

Hifitime,

"DLcockrum,don't assume I make statements without hearing something first."

Prove it. Name the aftermarket fuses (and powercords for that matter) that you have auditioned in your system and give your listening impressions specific to those products.

"They look the same as Bussmann and Radio Shack fuses"

Nonsense. I am still waiting on you to give me the part number of the Bussman or Radio Shack fuses that look anything like the IsoCleans.

"I also don't have any faith in a company that is making safety products and either has total ignorance of the product,or the laws in our country.Possibly both,or they just don't care."

More non-specific gobbly-gook. Do you think that anyone finds your posts helpful??

Hifitime, try reading the above post from Undertow. Use this as a guideline for what members of Audiogon want to see in a post. See it, read it, be it.

Interesting reading and here's another view.
I have HiFi Tuning fuses in my amp. One for the AC input at the IEC, and one on each power rail, for a total of 5. In order for any effectiveness, ALL fuses need to be changed. If you only change the AC input fuse, the easiest one, you are not really changing anything except lightening your cash on hand.
I only did this after reading an interesting little blurb on the pcX site, put out by HiFi tuning of course, about how their fuses had way way less resistance than standard fuses, of any genre. I thought that perhaps this might make a difference in power delivery as it may let power thru a little easier.
So, I got them and installed them, and then listened for any differences, and basically heard none, but nothing was worse, so okay. After a couple months I switched them out for the stock fuses, out of curiosity, and listened again. Now the music is not quite as loud, so bumped up the volume one notch, 2 db., and it's louder. So fancy fuses back in, and down goes the volume setting and all is more better.
This makes sense. A fuse is in the power supply rail and there is NO musical signal there. All the fancy fuse, with it's far reduced resistance, can do is make power supply delivery easier, faster. This may allow some improved performance from the amplifying section it supplies.
Everyone likes to describe what they hear as frequency response changes, but really, a fuse only supplies current to the amp, not music.
As to any cost effectiveness, well, you can buy a lot of music for the costs of the fuses. And you have to change ALL the fuses in an amp for any difference to happen.
But it's all part of the hobby.

I didn't expect a HiFi tuning fuse to make a difference in my modest system (at the time, running a JoLida 502B). The idea that a short run of very small diameter wire should make a difference seemed silly. But as a $30 tweak, the single one I needed wasn't that much of an expense. Installed, I thought I heard, primarily, a more open soundstage; possibly a bit more detail. When a tube went and took the HiFi fuse, I had to use a Radio Shack fuse until a new HiFi fuse arrived. Going back to a $0.50 R/S fuse convinced me the HiFi Fuse made a difference...without it, something was missing. Things just didn't seem as lively. Compared to the prices for so many other upgrades, the HiFi fuses seem like a bargain.