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Ac purifiers are just another marketing ploy to get the gullible to spend their shekels!That’s an odd comment. On what do you base your claim? Of all the system tweaks in audioland, AC purifiers are among the most easily tested. Some provide voltage correction and even power factor correction; those can make a big difference in a system’s performance depending, of course, on the quality of the AC in the first place.
After spending a weekend with iFi AC iPurifier, I didn’t hear any ‘upgrade’ in terms of lower noise floor in my audio system. The test was conducted with iPurifier plugged into same wall outlet as my QRT system including QBASE8 - MKII, Qx4, a pair of Qv2’s and Qk1’s.
To give it a fair shot, I then tried the iPurifier on the receptacle my projector plugged in and noticed immediate uptick in PQ. The colors were slightly more vibrant with increase depth perception and sharpness. After 5 hours of continuous use, I pulled the iPurifier out to see if I can live without it. Turns out, I prefer my viewing experience with iPurifier remain plugged in this outlet. This led me to believe that iPurifier does work as long as you’re not using any other AC purification solution.
My QRT system far outweighs the benefits of a standalone iPurifier, which is quite unfair to say the least given the cost difference. May be a full complement of multiple iPurifiers (iFi suggests using at least three) in a audio system yields better results....
For $99, you get over-voltage surge protection along with benefits of lower AC noise. If you’re treating a single outlet or a component, I would say it’s a keeper.
And yes, it does feel warm to touch but nothing alarming.
I discovered this gadget yesterday. After some experiments I'm a believer! Bought one already and maybe will buy more in the future.
It works especially well with digital devices. I have it plugged on the power bar where my class D monoblocks are connected, together with CD player, computer and DAC. The difference is not huge, but clearly audible. Everything now is more clear, less blurred.
But I must say that among some trials at the shop, it didn't show the same results for every system we tried. It seems the final result is system-dependent.
I bought 2 on a whim. In short, they're staying in my system.
I noticed 4 things in my system: 1) lower noise floor (never realized what that meant until now), 2) more "space between the notes", 3) the "edges of the sounds" extend further, and 4) there's no question about where the "sweet spot" is.
These are cheap tweaks that are easy to implement (and easy to remove and return if they don't make a difference in your system).