Please share how you are playing them. I'm still struggling with playback solutions. Ampcast and Spotify are working well and they sound great. WiiM is currently OOS on the eBay store but I'll order it when I see one. I have Foobar2000 but I can't configure it to my taste - it has infinite options and I'm sure it will do all that I want. But I don't have the time to set it up.
In any case, doing the remote desktop into the PC and finding and playing music with my laptop/tablet is NOT the best experience. To make matters worse, Windows kills the HDMI sound for some reason. Funny enough, it comes back after waiting for 5-15 minutes, or I have to walk over and disconnect the HDMI and reconnect it behind the PC. And that only works 3 times out of 5. Powering off the AVR and powering it on brings it back some times. Fiddly...
And then when I am watching TV (Vivo music channels) or a movie, the boom-iness comes back... Maybe I just need to turn the sub gain down for movies