Just got in a master fuse to replace the purple in my CD transport. Love what I am hearing right off the bat! We’ll see how break in goes, but, so far, I think Rick Becker is right on the money in his EnjoytheMusic.com review:
https://www.enjoythemusic.com/magazine/equipment/0423/Synergistic_Research_Master_Fuse_Review.htm
Especially if your system is already decked out with SR purples, I think it’s a no brainer to try a master in a front end component.