Fuses that matter.

Hello Mr. A- There are fast and slo-blo fuses manufactured in both 6.3 X 30mm and 5 X 20mm sizes. It's the internal conductor/construction that determines the lag time. Generally speaking; a single thin wire would indicate a fast-blo type, but it would be much better to check your owner manual, or with the manufacturer, for the recommended fuse.

FWIW, a few years ago I went through a few of fuses for my Plinius SA201; HiFi Supreme, AMR and Furutech. The Furutech seemed the most balanced to me with the HiFi supreme more dynamic, but brighter especially in the high mids. The AMR was is a great bargain and very easy to listen to but lacked some detail by comparison. All three were better than the stock fuses and the replacing the rail fuses made much more of a difference than the mains fuse.

My Klyne seemed to like the HiFi fuse more, but the difference was difficult to pin down and I wouldn't swear to the impacts of the different fuses. The pre has only a mains fuse and it is in the DC converter...

Charles-I should be receiving the AMR DP777SE soon and am anxious to see what you think of the AM vs the SR although it would be easy to take for granted that their fuse would be a nice match for their own gear...of course all the normal caveats apply.

Budburma, wow that is way too much testing for me. But I must say that I'm not surprised that you would hear such differences. I must say that once I decided that I liked the SR fuses, I did hear that on some components they made more of a difference.

Budburma,
I don't have nor have I heard the AMR fuse. I've only used the SR Quantum and they impressed me. So the SR Red fuse has my interest, if it's better than the quantum that's noteworthy.
Charles,

I've found that the SR are directional but I'm enjoying the AH fuses which are the best I've tried so far; The Reds are on my shortlist...