As with RONTOOLSIE, it doesn't take 20-20 hearing to hear the improvements in dynamics (and, ergo, the s.q.) from uprating a case fuse, even in a humble CDP. However, very few people would do this, purely from a safety aspect rather than an ingrained scepticism.
Mains fuses are there to protect the cabling, I understand; they perform no other function, and are laboriously slow to react compared to RCDs and MCBs, though I admit this is received wisdom rather than academic knowledge.
I neither use mains fuses nor plugs and sockets, as I believe these all degrade the dynamics of a good system, probably by increasing the impedance at each contact.
I happened to read this old thread yesterday and it got me really curious about what audiophile fuses can do. Is this audiophile fuse thing a pure bullshit? Are these people who shared the positive effect of audiophile fuse on weed?
So I called up one of my dealers and ask about it. He told me to go down to his shop and collect some audiophile fuses (Furutech T-13A. http://www.furutech.com/2013/02/01/3478/). When I was rising my doubt, he assured me that he will give me these fuses for free if I do not hear any positive difference. So I went down to collect the fuses and install it into my system.
When I played the first track, my jaw just drop. The difference is truly positively amazing! As Mike Reed simply said, it really doesn't take a 20-20 hearing to hear the improvement. It is really obvious. The cost of this fuse upgrade is just a small fraction it cost me to do a Dynamik upgrade for my Linn KCT, but the amount of improvement is way higher that the Dynamik upgrade!
I called up my dealer and share the result with him and he told me, "The audiophile fuses did not cause the improvement. Its the old fuses that prevent your equipment from performing at the level they should be performing. So you will hear even more improvement if your equipment are of a higher level. Audiophile fuses do not cure crappy audio equipment. Audiophile fuses allow your equipment to perform at the level that they should be performing"
Now, I am a convert!
I think I will start re-arranging my mains arrangement. I will most likely work on a main system without any fuses, sockets and switch.
Thanks for the sharing guys! This is really an amazing upgrade!