PS Audio PowerPlant P20 better than pure direct AC I get during the night?

@68pete Very helpful, appreciate the details.  Thank you!  I would like to hear one of their brand new units to compare...maybe I'll spend a little more for a newer model.

gkg2k,

Running springs Dmitiri is no longer produced - you can get bargains for used item.  If you google you will see it is preference issue- some liked and others did not. 

That said, I have heard raves about Shunyata Tritonv3/Tyhon combo from audiophile I trust (he repaced Dmitiri, and P15).  A bit too expensive for my blood. 

IMHO get 2 of any of the brands mentioned, plug them and return one. You will not go wrong- ultimately it is system match and your subjective ears which will make the call.

Kris

Why not go with a balanced power output transformer.. This way you get common mode rejection, cool running power with no losses, very efficient. Most of all clean power you can hear. No gimmicks, proven for decades and used in most recording studios and pro audio..

I'm the OP and I can say I'm heading towards Chang Lighspeed.
I'll keep you posted.

Mikem : do you mean an isolation transformer? I know they're heavy and large. Could you suggest a model, please?

Thank you!

Gianluca,

I have a Running Springs Dmitri I would sell you if you are interested.  $2k plus shipping.