@sokogear +1
I wasn't prepared for the changes in sound I got from my IsoAcoustics Oreas under my CDP. I was advised by Music Direct and IsoAcoustics to try them under the base plate and not the footers and move them about to settle on the changes I liked.
That exercise drove me mad, with just a 1/4" move changing the sound dramatically. I tried all manner of positions and would get fantastic highs but smothered mids, magically wonderful mids with curtailed highs, tighter base at the expense of everything else.
What I settled on was placing them directly under the footers and voila!, pretty much perfect in all aspects. The thing is, no matter where I placed the Oreas, the better results came from one directly under the CD drive mechanism, when using the base plate in place of the footers. That told me just how much vibration is in a CDP or CDT.
All the best,
Nonoise