I've had my Puron for a day now. Won't comment on its impact much yet, except to say that it is changing the sound, but so far is less than some of my other grounding and noise reduction products. It is similar to other EMI/Ground products in that the sound is changing in cycles, it will probably take a good 5 days before it is settled enough to do critical listening. I will say that from 8 hours to 16 hours it made a strong change of a wide expansive soundstage, bigger stronger bass, and very quiet background. Then it kind of collapsed. Looking forward to doing more more listening as it settles in though.
@AMR / iFi audio I've had two of your ifi Purifiers in my system for over a year. I just sold them recently. I tried them in many locations, and they made a small difference reducing grain and glare, but other products made a much greater positive difference. I also have an iSilencer+ on my streamer, that makes a nice difference there. Will probably try the LAN iSilencer soon!