btw22
FWIW, I tried 2 SR fuses on my Aurender. I wanted them to be better but there was no increase in SQ to my ears so I returned them.
If there was no difference in SQ most likely you inserted the SR fuses in the wrong direction and the previous fuses were also in the wrong direction. Another possibility is that there's a mistake somewhere in your system that prevents fuse differences from being heard.