Dear Friends!
That’s exactly what I did, listen to 3 SACD ISOs with the original Fuse and then listen to the same SACDs again with the Purple Fuse; The differences are noticeable
That’s not a blind test, and differences are nonexistent.
It does take some special level of not even wanting to understand anything to look at a rather simple explanation and say “I did exactly that” when you did exactly the opposite.