Roon Core Machine
Monterey 12.4 using (OpenCore Legacy Patcher), Mac mini(2011) i7 16Gb/500SSD Raid1
2 x Raid-10 48TB Drobo D5n with Hot Cache SSD 128 GB
Networking Gear & Setup Details
Unmanaged TP-Link 1016 switch.
General Audio and Tv sets all connected using UTP Cat 7
Dedicated Polymere Fiber between ROON core and Streamer, mediaconverters connections Fiber <>Cat8 AudioQuest UTP (50cm).
Mesh WiFi AC1200 backhaul CAT 6 UTP.
VPN Rpi4 4Gb with SoftehterVPN server
WiFi 5GHz only used for controllers like iPad iPhone and Laptops. WiFi 2.4GHz only used for domotics and Guest access.
Connected Audio Devices
Sonos net WiFi 5GHz:
Sonos One, Sonos Play1, Sonos Play3, Sonos Playbar, Sonos SUB, Sonos ARC, Sonos boost, . Sonos is available for ROON but not enabled in ROON.
Fiberoptic with Mediaconverters including dedicated Silent Angel Forrest 1psu:
Roon Core, Cambridgeaudio 851N
Number of Tracks in Library
tracks 89,135 albums 2517
Description of Issue
After the upgrade to the latest version, my ROON set did not sound as it was! First I checked all cable and connection nothing to see. BUT the SOUNDstage was equal to Audirvana! So why did i changed …???
So if not connection or Cable had been changed or deattached or wacky what is the next? yes check the settings! …
My first check look everything okay identical to what was … BUT NOOOOOOO… i checked on DSP settings this was as usual - all set to straight true (bypass all) all was as should be 
as i opened the Tab Audio in Settings … I found the Clock Master priorij set to DEFAULT and MQA on!!! and the Resync time was set to 0ms
My personal settings were Masterclock set to 3, MQA off, Resync 100ms.
So could this be a glitch? during the update? because i have updated ROON since the beginning without issues as i can remember - but this really came to my ears
BUT this was NOT ALL …
putting the settings back as they were as in previous Versions … the soundstage was not as I have Heard before - no change in hardware or connections or speakers …
by coincidence I changed the Masterclock priority to 1 (highest) and YESSSSSS there is was my old beloved ROON and knowing WHY i changed to ROON
So my question, what could be the issue that i have to prioritize the masterclock to highest to get the Same soundstage as in previous Versions?
When typing this … i did change some hardware, namely the RaspberryPi3 VPN server is upgraded to the RaspberryPi4 van and has gotten a different PSU.
In my hummel opinion this should not make any different? but what if the Zone VPN indeed make some difference with the settings?
This just puzzles me … hope you can elaborate this matter.
Thank you for the time! Regards, Max
