Best Power Conditioner?

PS Audio is the only one that actually reconstitutes the AC Wave and cycles. It draws a lot of current and costs quite a bit, but of the above, I would choose it first.

KF

The Hydra

I agree with KF...

I have used PS Audio with very good results on less expensive gear (eg. Sunfire Amp, Theta Miles).

Improvement in the Theta was nice but the sunfire was a different story...
It was like I had bought and brand new amp. it was incredible..

In my opinion, the sonic improvements gained by a regenerator such as the PS Audio are proportional to the quality of your incoming ac and the power supply(s) in your gear.

When I upgraded to very good amps (Atma Sphere MA1 mkII.2) the improvements were positive, but far less dramatic than the sunfire.

I still use a PS300 for front end.

Although, I was most suprised by the installation of dedicated balanced ac lines with good receptacles?

I have heard great results with these and it was somewhat less expensive than the very big and good generators/conditioners.

I have not heard the other choices but have read great reviews on Hydra.