Best AC line conditioning devices?

If you just want to cut to the chase, do try the Plasmatron at VH Audio. A very underrated product. What it does for digital is just wonderful. Analog benefits as well btw. I took mine to 6 audiophile friends houses and all but one bought a unit. The only holdout had just purchased a PS Audio powerplant regenerator.....we added this to his regenerator and the sound was so much better we were all just slack jawed......Unfortunately he had just spent a wad on his and would have to make it work... It was like vinyl spinning without the noise. He was saddened when I removed it. He asked if I was leaving it longer..... If you are in the Bay Area, you can try mine for an evening. Truely a big improvement. I have heard just about every conditioning configuration....then heard this and was smitten....the best I have heard by a large margin. More air, detail, space, texture and just a musical ease....live music seduction. Not cheap, but really worth an audition. Not every configuration will be magical so trying is imperative, just like any other component. The only DAC I did not like the synergy with was the Luxman. Just did not feel the connection. The 5 or 6 other DACs were magical. Contact vhaudio. Regards, PT

I have heard the SR power cell, and their limited production unit, top of the line R. Grey, PS Audio, and many others. I neglected to mention the Plasmatron can be plugged into your high current conditioning/surge protected outlet. One of the best improvements I heard was the Plasmatron plugged into a top of the line Richard Grey system with 220 V etc. Just stunning what that level of treatment does to not letting AC influence the sound. Recordings suddenly had an a loss of edginess, and recordings were more individual sounding. The sound of the different recording venues were vivid. As mentioned before, worth a listen....and no, I don't work for VH Audio, and I had to pay hard currency as well for mine. One friend did return his unit....only to upgrade to a bigger one. What did it for me was how much video improves with one. Really interesting....... PT

I have not used any Sound Application devices. I might add that I loaned my unit to a retail dealer for YG Acoustics...he bought one .....says a lot to me. They are only available factory direct. He trusts his ears, he has very good ears, and heard what I did as well. His room at the Bay Area Audio Show never fails to impress. A picture is up at either his website for Loggie Audio or at VH Audio. I can't recall which one.
Apparently the tube used is a Thyratron tube and affects the phase angle. An EE may want to chime in and contribute more as I am not an EE. All I can say is that when in a system, computer based, cd, vinyl, especially systems with non tube power supplies, the results are very positive. With tube power supplies, I note less of a difference.