Review on 🔌 Enhance Your Audio with the iFi iPurifier3 USB Signal Filter/Purifier (USB Type B, White) by Ray Adair

I am connecting a RasPi 3 with iPower 5v to a Chord Qutest. I know the Qutest is galvanically isolated and I was skeptical that iPurifier would make a difference, but I'm always looking for improvements, especially now that it's driving some very transparent speakers (Pendragons). When I put this in the chain and did some A's and B's I couldn't find anything that had changed and was ready to send it back. But then, as I listened all evening, I kept being drawn to the DEPTH of the image. This is not what I was looking for so this surprised me. I was expecting the sound to be somehow cleaner, but there it was. This is space and depth in my system. Worth a try, just send it back if it doesn't work.