2. amps-preamps
  3. 1448317474

Synergistic Red Fuse ...

I installed a SR RED Quantum fuse in my ARC REF-3 preamp a few days ago, replacing an older high end fuse. Uhh ... for a hundred bucks, this little baby is well worth the cost. There was an immediate improvement upon installation, but now that its broken in (yes, no kidding), its quite remarkable. A tightening of the focus, a more solid image, and most important of all for my tastes, a deeper appreciation for the organic sound of the instruments. Damn! ... cellos sound great! Much improved attack on pianos. More humanistic on vocals. Bowed bass goes down forever. Next move? .... I'm doing the entire system with these fuses. One at a time though just to gauge the improvement in each piece of equipment. The REF-75se comes next. I'll report the results as the progression takes place. Stay tuned ...

Any comments from anyone else who has tried these fuses?
oregonpapa
jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Anyone know what size fuse is in a ARC REF 5 preamp?

I think it is a Slo-Blo T 3.15A 250V, but I don't know whether it is small (5 X 20) or large (6.3 X 32).
almarg's avatar
almarg
9,670 posts
 
John, I see in various photos and in the manual for the REF 5 that the following markings are present above the fuseholder:

5A Fuse
Slo-Blo
T3.15A (230)

I would interpret that to mean that you should use a 5 amp slow blow fuse, and that the reference to 3.15 amps would only apply if the preamp is wired for 230 volt operation, for use in a country having 230 volt (or similar) AC.

I don’t know either whether large or small is called for.

Best regards,
-- Al

jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Al, right you are...again! Thanks!
The resolution on my photo was not good enough to make out that 5A Fuse on the top line, but you are correct, it is clearly legible in the manual once zoomed in. So it is a 5A, not a 3.15A Slo-Blow

That seems pretty high for a preamp, doesn't it?

However, this still does not tell me if it is a small or large fuse. Anyone?

Thanks Al!!!
oregonpapa's avatar
oregonpapa OP
4,867 posts
 
My Ref - 3 uses a large fuse. 3.15. 
knghifi
1,668 posts
 
Anyone know what size fuse is in a ARC REF 5 preamp?
5 amp 1 1/4" (large) slo-blow. 
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