Can no longer play multichannel files after Big Sur upgrade

Roon Core Machine
Mac Mini 2018 Intel 2.3GHz i7 32GB RAM
This machine is also the Roon player.

Networking Gear & Setup Details
Netgear GB switch, Virgin Superhub 3.0
Multichannel audio files stored on Synology DS920+

Connected Audio Devices
Denon AVC X3700H connected to the Mac’s HDMI port. Exclusive mode enabled in Roon.

Number of Tracks in Library
2442 tracks

Description of Issue
I had Roon working perfectly under Catalina, then I upgraded to Big Sur. Big Mistake.

Now none of my multichannel files play without being mixed down to stereo.

What can I do (apart from spending several days reinstalling Catalina) to fix this?


I found the culprit, for some reason after the Big Sur update the settings for the Denon had been changed to 2.0. I’ve only been using Roon for a few weeks so don’t know my way around yet. That’s on issue off the list of things Big Sur has broken! :smiley:


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