Best AC line conditioning devices?

Ptss,

I have only heard a Sound Application at a show. It was a $20,000 item that impressed no one in the room.

Interesting Sabai. Did you have the chance to listen to the system with and without the SOUND APPLICATION unit? $20,000 is a lot of money so I'd have high expectations. Do you remember who it was displayed with? Appreciate your input.

I used to own an Acoustic Revive RTP-6 Ultimate which is more of a high end distributor, but claims to offer some conditioning. The RTP uses top flight cryo'd Oyaide R1 wpo's and sounds fast, detailed and neutral/natural. I recently upgraded to a Gigawatt PC-3 SE Evo conditioner which was a significant upgrade. This condition has excellent engineering and build quality. In terms of sound, straight out of the box I noted the following improvements in random order; - smoother sound (more liquid), blacker background, more body, inner details, more detail in general & slightly improved dynamics. I'm told this conditioner needs around 200hrs to open up and settle down, so the best is yet to come!

Ptss,

Yes, we listened with and without the unit. It was in a Raidho room at the A/V show in Singapore.

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.