Hello Brandon , are you speaking of Audio magic fuses, or magic audio as you have listed ? IHave the Synergistic purple dual 16 amp slow blow in my Coda amp section and there is a very noticeable upgrade , guys stating a fuse is a fuse knows little on metals ,and conductivity , the stock fuses are Zinc,steel type
the top fuses have graphene copper,silver 4 x more conductivity ,= 4x less resistance = far lower distortion the incoming fuses creates a bottleneck of resistance with a stock fuse, that’s why so many people use aftermarket fuses
it’s very easy to measure the difference on a scope .