Thanks everyone for your feedback-much appreciated!
auxinput, thanks for the advice on burn-in.
I'll let them run to the 200 hr. mark and see what happens.
Just a final observation....I am amazed how a fuse can affect the sound the way it does.
Both the Gold and Supreme sound a world better than the stock fuse in my Manley Stingray.
In other words, they greatly improved my enjoyment of listening to my system.
I know there's been a 1001 threads regarding fuses.
Don't know how they work or why they affect the sound the way they do.
But in my system it's absolutely a step forward to the promised land.
Thanks again everyone.
Hope your weekend's going well!