Using protective discs under brass footers

Just did. My new amp has inverted cone feet. Bought some relatively inexpensive cups - metal with rubber, about 2" round. Purpose was to protect the wood, but low and behold, the midrange opened up, more air etc.

Who would have thought.

I have been a Star Sound dealer and their brass cones do sound somewhat better using the matching brass saucers. Not night and day but noticable.

I can't believe using those disk's will get the job done that the footers were intended to do.
I use maple platforms on my maple shelves with those rubber/ cork isoblocks between them. Then the brass footers on my component dig into the platforms instead of the shelves. Now there will be those footer holes only in the platforms instaed of your rack shelves.
Works especially well for my turntable and amp.