I had both the P300 and P600. Both had multiwave, and I ran them both from dedicated outlets. The P600 was switched to 220V, which made it perform better. Both were fed with high quality power cords. I was using the P600 for my amp and analog, and the P300 for digital. Then I tried the Sound Application C-FX. My system totally opened up, and I realized how the Power Plants restrict current flow to audio equipment. Yes, they quiet things down, but they also mask a lot of nuance and low level detail. Recordings now had space and venue that was lost with the Power Plants.
Then I tried the new Audio Magic Stealth. I didn't have much hope for this lightweight power conditioner in a plastic box, but compared it to the C-FX at the urging of it's designer. WOW!! It smoked the C-FX. Out went the C-FX and in went two Stealths to isolate digital and analog. This is the best I've found. The silence and black background is stunning. If you follow Soundstage, you'll see that some of their reveiwers are using them now in their reference systems. The owner of Audio Magic hasn't advertised these things, and he can't keep up with the demand from word of mouth.
Then I tried the new Audio Magic Stealth. I didn't have much hope for this lightweight power conditioner in a plastic box, but compared it to the C-FX at the urging of it's designer. WOW!! It smoked the C-FX. Out went the C-FX and in went two Stealths to isolate digital and analog. This is the best I've found. The silence and black background is stunning. If you follow Soundstage, you'll see that some of their reveiwers are using them now in their reference systems. The owner of Audio Magic hasn't advertised these things, and he can't keep up with the demand from word of mouth.