Anyone actually interested in improving the sound/presentation of their system and curious, as to whether a simple fuse change might make a difference, can audition the Synergistic, at home, for 30 days, without risk.
Click on the following and scroll down slightly. You'll notice a proclamation/seal, promising your money back, if dissatisfied.
No excuse not to try them for yourself (or a plethora of Synergistic's other products in your own home and system, with your own ears*) to dispel any mystery.
SO MANY variables
SO MUCH bias and unfounded opinion
*Obviously: one must trust their ears as well as: capacity for discerning the truth, because the Denyin'-tologists will tell you, "You're crazy!" (or some variant).
https://www.synergisticresearch.com/fuses/orange-fuse/
HAPPY LISTENING!