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Audio Horizons fuses.... won’t buy them again...

I’ve bought 5 Audio Horizons Platinum fuses a couple of months ago, for my amps, speakers and DAC.
Three days ago, coincidentially, the 5A fuses on my mono amps (Rogue Apollos), blew at the same time on start up. Replaced them with the OEM fuses, and everything works again.
I have a very good electrical installation, with independent lines for each amp, a no surges or anything strange occurred. My speakers, Evolution Acoustics MM3s are always ON, and nothing happened to the fuses on them.
I emailed Joseph Chow inmediately and his response was to send the fuses back to him (at my cost, I live in Ecuador...), to repair them for $70/each, plus shipping.
I have paid $138 for each fuse in October, and no warranty?... what a shame!!!
Won’t buy these fuses again, NEVER!!!
leog2015
georgehifi's avatar
georgehifi
4,966 posts
 
twoleftears387 posts01-02-2018 5:38amSo if I only need 0.25A in the first place, and go up to 0.5A, that's still doubling the value. Hmmm.
Don't do it, the one who said that has no idea on safety or of mains or ac theory, and his advice is about as useful as ***'s on a bull.

Or if your being facetious with your question, I'm with you 100%.

Cheers George.
geoffkait's avatar
geoffkait
14,147 posts
 
Hey, whatever, guys. Looks like this fuse stuff is for high enders only. Good luck with whatever. It appears somebody’s following the wrong sheep.

🐑 🚶🏻‍♂️🚶🏻‍♂️
jea48
2,944 posts
 

twoleftears
387 posts                                                                         01-01-2018 12:38pm

So if I only need 0.25A in the first place, and go up to 0.5A, that’s still doubling the value.
Hmmm.
In the event of an overload condition it could be even more than double before the fuse blows.

electrical characteristics
Rated Current 1⁄16- 30A

% of Amp Rating Opening Time
100%None
135% 60 minutes maximum
200% 120 seconds maximum
http://download.siliconexpert.com/pdfs/2017/7/16/3/4/59/187/ech_/manual/505268968020198product-datas...

For a slo-blo fuse,
1/4 amp, it could be overloaded 135% up to 60 minutes maximum before it blows.
0.25 X 135% = 0.34 amps.
0.25 amp overload condition of 200% for up to 120 seconds maximum.
0.25 X 200% = 0.5 amp

Replacing a 1/4 amp with a 1/2 fuse.

1/2 amp fuse.
1/2 amp, it could be overloaded 135% up to 60 minutes max before it blows.
0.5 X 135% = 0.68 amps
0.5 amp overload condition of 200% for up to 120 seconds maximum.
0.5 X 200% = 1 amp.

Jim

gdhal's avatar
gdhal
1,641 posts
 
Just stay away from the fuse snake oil, it’s all BS just to get your dollars.
@georgehifi

While I’m inclined to agree with you completely, I’m curious as to your opinion as to why so many folks (on this forum and others, such as very recent postings on head-fi where the Yggy fuse is concerned) claim to *hear* an improvement when switching from a manufacturer supplied fuse to a boutique aftermarket fuse.
georgehifi's avatar
georgehifi
4,966 posts
 
purport to *hear* an improvement when switching from a manufacturer supplied fuse to a boutique aftermarket fuse.
Simple answer to that one, "they don't". If you know your ac/mains theory, it's just not possible. 

What they do hear is "expectation bias" waiting for it to arrive after spending $130 on a $2 fuse. Or their replacing an old fuse that's had too many turn on surges over time and carbonising and getting ready to blow like this pic below.
There's no way they could reliably pick the difference in a blind A/B.

https://i.stack.imgur.com/0uqWX.jpg

Cheers George 
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