The "dirtier" you electricity is coming into your house the better almost any conditioning will sound. I have fairly "dirty" AC and I replaced my P600 with a PPP and the PPP sounded better-mostly imaging and depth. If your amps are relitvely small, use the PPP, but sometimes conditioners aren't "fast" enough for larger amps. I only use it for my sources/preamp-the amps go directly into their dedicated recepticles. Best to try one out and listen.
PS Audio PPP owners how do your amps sound
plugged into your Premiers compared to straight to the wall? I know they're designed to power an entire system. Do you hear a definite improvement with your amps plugged into the Premier or is it the opposite and you're now going directly to the wall with your amps? Thanks