Hi winwss,
I am not sure which one is the best, silver mica capacitor is the bst in high notes. it always in japan high end cdp.
I think must try more caps to match your tasts.
actually i found my friend's NAD CDP is using a 4.7nF ceramic cap near the power filter...so thinking maybe change to a better cap such as 4.7nF silvered mica or the 10nF mkp 1845.