Any tweaks recommded for under cd player?

Thanks for all the responses, the only tweak I had tried is Shumook super cone current under mine pre-amp, does not sound good under mine cd player, the player is sitting on original cone and piece of maple platform would like to get little more extended out on the high.

Yes the cd player is plug into hydra with purist dominus pc both with fluid and ferrox version ic is proteus provectus.

Any one tried the marigo labs mystery feet?

Mitch2,
Can you tell me which version BDR you use also any improvement? I am using some telefunken 801s at the moment, also have a pair of mullard 1950 square getter.
How is the mullard gold pin compare to the non goldpin?
thanks all for replies