Here is a simple explanation , just look up resistance index in metals .
Silver vs the buzz fuse steel zinc.
The top fuses have ceramic instead of glass far lower micro vibration
End caps are solid silver .Better then 7x less resistance then Steel. Meaning
Resistance of this amount us a Huge bottle neck creating low level distortions
With top fuses after about a 75-100 hour runin you get full benefits.
Better separation if instruments, tighter imaging, and better low lever detail.
Think of a 1 inch pipe vs a 1/8th inch pipe .the electrons flow much more at ease
And these are the results. One thing to mention. The rest of your system needs
To be addressed quality Audiophile power cords ,interconnects, and dpeaker cables, not monster Cable or blue jeans those are basic cables.
Engineers are the very worst .I cannot tell you how many say a power cord is a power cord, or capacitors or resistors all dound the same ,breakin is in your mind.
I have spent years molding and listenjng and documenting changes well over 15,000 hours literally. Owning a aufio store until 06 I had plenty of time and having a technician a lot of upgrades . Keep an open mind One more thing the Best
For your contacts and last for years is Stabilant-22 .I have tried them all
$55 a bottle .clean everyyhjng including power cords first with high purity Alcohol.
Everyyhjng that has metal clean it ,and coat all surfaces Thin coat. Fuse holder
Included.