Mass and vibration cancelling on top of CD player?

dave, your understanding of the holy trinity (vibrations, AC & room) is impressive; if i had to boil down how to build a good sounding rig, you nailed it.

appreciate your thoughts on vibration control. FWIW, i got great results with AC by using the wall plates and dedicated vibration control of AC distribution boxes (critical!), and the addition of a technical ground as described on equitech's website took my resolution over the top. YMMV, but thought you'd appreciate these findings.
best

Rhyno I'm not sure what you mean by "wall plates" and AC "distribution boxes". I agree on the Equitech's grounding information.

look at products by oyaide & furutech that are simply wall mounting plates for an AC outlet (which also must be upgraded to an audiophile-grade duplex on a dedicated line, to do it right). and, if you have a power conditioner / distribution box, you must address vibrations of it, likely before worrying about the preamp IME.

Thanks Rhyno.10/4