I tend to agree with Mceljo. The PurePower AC regenerator takes any crap coming out of the wall, converts it to DC, which completely eliminates the grunge and then converts it again to CREATE brand new perfect sign wave 120V power which it stores in a bank of internal batteries and feeds the components this juice as needed.
The idea that the most important cable is from the wall to the power center was referring to a CONDITIONER, not a regenerator... totally different animal.
That said, I'm still very interested in hearing from anyone who has A/B'd this question with a regenerator. I'm not opposed to getting a dedicated line if there is something I'm missing here.
Stanwal, the tests PurePower has done on the juice coming out of the regenerator seems to suggest that it is actually "perfect" power... and considering the enormous difference it made in my system, it is believable.
Now as an aside, upgrading the power cord from the regenerator to my tube preamp made another enormous difference which I don't quite understand... anyone have any thoughts on why?