Fuse upgrades? -- 6.3 amp 250v 5X20mm fast blow fuses

This is going reasonably well, you know, considering it’s a fuse thread.

If you think UL losing is a big audiophile issue for fuses just ask the 70 or 80 thousand audiophiles who opted for non UL listed aftermarket fuses. And if you insist on something fast acting try some fast actin Tinactin. We want tuna that tastes good, not tuna with good taste. 🐬

Why on Earth would you put fuses anywhere except on the primary of the transformer? The only reason I can imagine is to idiot-proof things because you're customers require idiot-proofing.

Kosst, 
In my Platinum upgrade of the McCormack DNA .05, Steve has four FB rail fuses, two on the main circuit board, and a fuse ahead of the transformer.  I don't know his logic for using so many fuses, and I have blown a few of the rail fuses with poor IC connections, but it is the finest amp I have ever heard.  I think he used the fuses perhaps to idiot-proof them, which I will admit to being one.  Cheers, Mark