PS Audio AC Regenerators

Will do. Thank you.

Garypennstate - I have the P20 and love it with one exception.  I cannot plug my ARC 250SE Monoblocks into the P20 or it will shutdown.  It does a great job cleaning up power and provides a darker background and allows greater detail, transparency, dimensionality and makes my system more musical.

Update. Although I've read many rave reviews about the P20 and really wanted it, at $10,000 it was a bit out of my price range. I went ahead and bought the Equi=Tech Q2 balanced power conditioner for $4300 and also had an electrician come in and install a dedicated 20 amp line/outlet at a cost of $250. Resulted in a  big improvement to my system with the music sounding much clearer and more defined. I'm very happy with the Q2 and the dedicated 20A circuit.

garypennstate

I've bought through Audiogon an used P5 and I'm very satisfied.
Research used P10 or P5. No quality sound differences.

@jonaiken - Did you try a staggered start-up with you ARC amps? Could be a full-system surge, at turn-on, was causing too big a load for the P20.
Did you try firing them up one-at-a-time?