When adding rubber isolator feet to CD player

Should the stock feet be removed, or remain?
Remove them, as they may cause unwanted resonance.
I would by pass the feet altogether and put three 1" audiopoints, to start, under your cdp. After you listen for a long while (and love the improvement) you may, just, want to move up to an SP1 stand. A significant upgrade from the three points. You can go to the audiopoints website and read up on resonance transferrence and see if it peeks your interest. It did, mine. I've been a coupler ever since. peace, warren
Gotta agree with Warren. The Sistrum SP-1 was an incredible improvement in the performance of my Jolida. Not subtle at all.