For everyone's info, and for what it's worth vis-a-vis our discussion about mixing balanced and unbalanced power:
I had about an hour and a half conversation with Brent Jackson (who is the CEO, chief engineer, etc) of ExactPower on this subject to see what he'd say (especially since I use both of his units, the EP regenerator and the SP balanced unit -- and do so only because I'm in an apartment now. When I had a house it was dedicated circuits with high-speed diodes on the breakers for surge protection and that was it!)
Anyway, his recommendation for using both units together was to put the EP regenerator at the speaker/amp end and plug in the amp, both (CLS) speakers, the subwoofer, and (using a longer 12 ga. PC) the SP balanced power unit, which I have near the source devices.
First I listened with all ground pins connected. It was pretty quiet except the sub which had some barely perceptable 60 ~ hum. So I started putting ground lifters on the devices plugged into the regenerator. That got any residual noise/hum, so I haven't messed with polarity yet on those devices (but you know I will ;-)