Power direct from the wall, or Power Conditioner?

[AaronG]

Reading these posts I'm coming to the conclusion that it doesn't make much sense to talk about power conditioners independent of your electric supply. My electricity is lousy, I live in sth city and in an area with a lot of businesses, and I could hear big differences between evening sound and day sound. If the PSAudio is to be trusted there are notable shifts in voltage during the day and it seems like that can't be good for the Devialet et al. The sound is now much more consistent and generally improved.