I use a MIT Z-Center which has a dedicated and separate isolation between Digital and Analog sources.
Never put any amps on power conditioners!
you will loose dynamics the trade-off is that you will get more details, in reality none of us should make any concession!

For power amplifiers I use the MIT Magnum AC-2s, expensive but extraordinary power cables, don't trust me try them if you can afford them. www.mitcables.com

So for a pure Meridian digital theatre system, I will have good power cords on speakers and a power conditioner for the digital front end.

IMO

FB