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
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Yeah, but ordinarily people increase the value by only .25A or maybe .5A not a full Amp. But maybe someone somewhere has, who knows? The other thing is no one seems to know exactly WHY the aftermarket fuses blow. I also recall even stock fuses blow prematurely so who knows?
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Thank you jea48 for the information on the what, why and how of fuse ratings. That helps me and I am sure others make a more informed decision. I have aftermarket fuses with the called for manufacturer rating. But I have thought if I have a problem that I may go up a notch. Now I know more about what I would be doing. Thanks