Hi adam, welcome to the world of aftermarket hifi fuses. Virtually all such makers start with a cheap existing fuse and then modify it. This very often results in better sound than the stock fuse, but is, like you say, kind of a sham considering how little it may cost for them to do that. On top of that, their measurements for their fuses are woefully incomplete or non-existent and occasionally some will just flat out lie.
If you ask me (and I know you haven't) and you want to see what one of the very few legit aftermarket fuse maker's product looks like (I use them, anyway), go to alanmaherdesigns.net and look good at the specs listed for their fuses and directly compare them to anything out there...if you can find their specs.
Noise reduction through fuses is important, the fuse is the weak point of the entire power supply, but truly reputable dealers (both with fuses and the power-treatment field in general) are hard to come by. They're often stealing tech from each other without fully understanding what it is they've stolen and how to best to implement it.
AFAIK, Alan develops his own tech. Others do in fact steal from him.
If you ask me (and I know you haven't) and you want to see what one of the very few legit aftermarket fuse maker's product looks like (I use them, anyway), go to alanmaherdesigns.net and look good at the specs listed for their fuses and directly compare them to anything out there...if you can find their specs.
Noise reduction through fuses is important, the fuse is the weak point of the entire power supply, but truly reputable dealers (both with fuses and the power-treatment field in general) are hard to come by. They're often stealing tech from each other without fully understanding what it is they've stolen and how to best to implement it.
AFAIK, Alan develops his own tech. Others do in fact steal from him.