It's not so simple because my ears also measure. My brain analyzes the results. The problem is that it's not calibrated at all and final results can vary.We can go on and on I don’t believe such linear psw improve sounds and thought was snake oil. Just order it and let your ear decide if it’s a keeper or not. It’s just that simple no need go on science about audio. We let our ear decide and not measurements. Why people buy tube amp when the distortion on those were high? Because it was pleasing to their ear and don’t care what other people think.
I do not want any distortions introduced to the audio path. I want the sound as close to the original as it is possible to be delivered to my DAC. How the linear PSU connected to WiiM could help with that?