Kedoades, you can obtain Elliott’s recommendation at Synergistic Research. I had to move from a 5 to an 8 amp slo-blo fuse due to the immense size of my custom amp’s capacitors. He recommended the same as rated size fast blow fuses for my solid state 1978 Yamaha receiver and ADS speakers (for the tweeters). He also recommended a 4 amp instead of 3 amp standard slo-blo fuse for my Dynaco Stereo 70 (modified) which is a tube amp. So, it is equipment dependent as to using the same size versus larger size fuse. The fuses on both amps changed the sound 100% for the better-superb after 150 hours of use.
Yes, the trolls are out tonight. I don't care for the definitive reason(s) for the SR fuses *and duplex outlets) making my amps creating sound in my listening rooms that are so superlative versus just very good, everyone who has heard the result can testify that they never heard a better sounding audio system. I don't have SOTA equipment, but it's high end gear, wiring and tweaks (all my stillpoints, hallographs and isolation transformer).
Why are these trolls so interested in our (high end) fuse users welfare?