WHF use to have tips for improving Fidelity on the cheap, one of them was Placing 1/2 squash balls under your CD player to absorb vibration, Do not see this being reccomended much is that because of the cheap availability of things like sorbothane feet is this still the done thing?
I Still have my 1/2 squash balls under my CD player 
Paul W - Just enjoying the Music.
Kit in Bio.