The PS Audio power plant does a pretty good job at making dedicated power irrevelant (although I must admit that I havn't tried my system with dedicated power to compare it to the power plant). One thing that it does _not_ make irrevalent is a dedicated ground. By US law (I dunno about other countries), it cannot touch the ground. But you can disconnect the unit's ground from the house ground, and use your own instead. It would be very unfortunate to unhook the unit's ground and not have a seperate ground :). Another advantage to the PS audio power plant is that you can increase the cycle rate from 50/60 Hz up to 120 Hz. For my setup, I noticed a slight improvement bumping it up to 85-90Hz, and degridation after that point. Redkiwi: I've only noticed better dynamics with this. Dynamics could be compressed if you, say, used an amp that uses more peak watts than the PS device can produce. For front end gear, the peak current isn't too much higher than normal current, so it would probably be OK. BTW, they do have an export version which puts out 220 or 240V (but it's a bit more expensive than the 117V version). The PS Audio web page is excellent, and Paul McGowan (the designer) is very helpful answering questions. And no, I do not work for PS Audio :).