Fuses that matter.

Bryon, thanks for the info. Both were pretty much the same as stock fuses, per your test, so I checked only Supremes and could not find any safety approval. There are better returns for my money in audio, as Mapman suggested, since I'm not "there" yet working currently on room acoustics. Also idea of investing in something designed to fail would make me feel bad. Hi-Fi fuses are not very common so this thread looks a little like support group:

"Hello, my name is Joe and I listen to fuses"
"Hi, Joe"

Kijanki wrote,

"We don't even know if 3A Hi-Fi fuse is not really 3.5 or 4A standard fuse since AFAIK there is no test or approval of any agency."

Judging from the 4 pages of technical data on the Hi Fi Tuning web site, including data for directionality and cryogenically treated fuses, chances are good that Hi Fi Tuning testing is at least as comprehensive as UL or other standards orgs.

I have been away for 2 weeks and surprisingly this debate is still going forward.
I for one hear a difference in the Supreme fuse vs. the stock fuse in my amps.
If you dont hear any difference in your system when using the Supreme fuse fine but please dont tell me that I am not hearing a difference.If you have placed this fuse in your system and heard no difference I accept your conclusion, why is it that a few can not accept that others have heard very positive sound improvement.
Direction of fuse's aside now we are into are they safe.
Just think of the after market power cords that improve sound,are they all UL approved.What about the electronics
Simply stated if you haven't placed the fuse in your system you CAN NOT state any thing about what they can or cant do.

Goldeneraguy, it amazes me also. I really don't understand what drives some people. Having been for a year a EE major, I can partially understand. I once asked in class, when we were going to study tube circuits. In a mild rage, the professor uttered that tubes were done and thus don't merit any discussion. I decided that physics was more scientific and switched there.

"I really don't understand what drives some people."

I can only speak for myself. In my case, in a thread like this, what drives me is to help get all the facts out on the table so people can make their own educated decisions.