I have built my sonos system over the years and loved that I could link the rooms, I have older 2 x ZP120, 1 x connect, 5 x play 1, 5 x connect amp…….. is it possible to run it all on the older software and older app and have on the same system, lately it keeps telling me items are incompatible and open S1 or open S2. I’m not bothered if I have to run on the older version of the app but don’t want two systems really as I often use the line in to play vinyl music through the house.
Best answer by Ken_Griffiths
I got the impression there isn’t an S1 household - Just to add, if there is one in existence already, and you want all devices running on S1, then first remove the S2 App and Factory Reset those products that were in the S2 system and add each one of your devices just to that existing S1 system. Removing the S2 App for downgrading purposes is part of the process.
Mod Edit: Edited for clarity and added link prior to marking as Best Answer