Well, I tested it today. Spl matched with my Densen b-310 / Bel Canto current set up, listened to a few tracks. Densen I use is AB class 140wpc at 4 Ohms, Wiim is slightly more powerful. I couldn't hear the difference tbh, not sure if it's a good thing or a bad thing, or just a thing. I'll probably going to keep Wiim, no reason to return it really. It works well using tidal and when connected to a TV using hdmi, it also has enough power. I locked the volume limit in the app at 75% and never reach it. Will get my UMIK-1 and see how the built-in room correction works.