A friend brought over his P15 last weekend. We hooked up everything, ARC VT100 tube amp (~575W draw), ARC Ref1 preamp (90W), SMS-200, PSAudio DirectStream DAC and P15 had no problem. System sounded much better than the wall outlet, which is a 20A dedicated outlet. I am 10 miles from a nuke power plant, with underground electric service, but the P15 still showed the typical chopped off waveform peak and said it had 4.6%THD. I was surprised at that, as I always thought my power was good. My power is relatively is quiet of HF noise but the distorted waveform seems to be more important than the noise. The very noticeable improvements suggested something was indeed not optimal with my power. We changed amps to a 60W solid state integrated and the improvement was just as noticeable compared to wall outlet. We were surprised at this, because many previous power conditioners we've tried over 12 years had no noticeable effect on this SS integrated amp because it has a very stout PS. Even a big Equitech gave no benefit to it. I will be getting a P12.
PS Audio AC Regenerators
I would like to hear from fellow audiophiles who have recently bought and are currently listening to one of PS Audios new line of power regenerators, the P20, P15 or P12. I'm leaning toward buying one. Opinions please.