It does not work on server pC (W11), which has an analog stereo out; it also does not work on my Google devices (wifi)
Connected Audio Devices
Amplifier connected to server pc vi analog stereo cable
Number of Tracks in Library
80503 tracks
Description of Issue
I have several quad albums in my library (Chicago - Quaudio, Dooby Brothers - Quaudio, Pink Floyd - Dark side of the moon). I ripped these to 4-channel FLACS.
When playing on my intel NUC via HDMI as 4-channel everything is fine.
When I play the same tracks via stereo on my server pc, Roon is indicating channel mapping quad to 2.0, not down mixing. This is indeed what I am hearing, no surround channels
Roon will not play 4 channel albums correctly no matter your settings, in my experience, and fixing it has been an outstanding support request for several years now. I solved the MCH playback problem independently by using the free PC-based Music Media Helper 6 (requires Microsoft .net 6 install as prerequisite). Within MMH, you can use the Remix Channel Layout function to, album by album (sorry, but you only have to do this once), add a silent center channel, turning your files into 5.0 versions that Roon will then play out as quad files just fine. Hopefully, doing this will also enable you to get a proper mix down to 2.0 as you seek. Give it a try with one album and see! JCR