iFi Audio AC iPurifier Reviews

Thanks to the reviewer above I finally took a stab at one of these. First one went in the server closet which runs off of my office circuit that has a lot of computer etc devices on it. Immediate and noticeable effect. Less glare in the treble in particular. Second one went on the same power strip, separating the power supplies and the network devices, third one went on the dedicated line that powers the opticalrendu via the Sonore Power Supply. Fourth one coming is going on the office system which runs off a different lighting circuit. Tested with the third and improvement noted. 

If you can't/don't want to afford a four figure power strip/conditioner, these are amazing bang for the buck. No warm up or "stabilization" needed, they also supply surge protection without affecting the dynamics or prat of the sound. Best is one can sprinkle them about and go additive for a cumulative effect (I would assume three on a very noisy circuit is about peak). I think what these do one could keep chasing with more and more expensive cables, power supplies, etc. but be stumped by glare and artifacts until throwing in some power conditioning, and these are a great flexible and inexpensive way to do so. 

This is a fairly cheap AC conditioning device and one that makes a very noticeable difference, especially if the AC is not filtered or conditioned by anything else. The decrease in noise floor, the increased resolution on all frequencies and the more natural sound is heard both next to a DAC or an amplifier. And its effect also escalates if you add more than one or several in the system.

The iFi AC iPurifier is my go to recommendation to start with AC conditioning, even before expensive mains cables. It is that good.