I have.
Gear (I have other gear as well but these are key ingredients/ones that matter most):
Audio research and Bel Canto amplification
Bel Canto and mhdt DACs
OHM speakers
DNM Reson ICs and Pangea Power Cords (to a much lesser extent)
Phono section is Linn Axis, Denon DL103R, Electrocompaniet stepup transformer + Mu metal foil shielding around step up transformer
I’ve found the OHM speakers to be the most irreplaceable for maintaining "audio nirvana".
Sorry, no fuses making this list to-date. :^)