I have a long established S1 operated set of speakers. All are S2 compatible except for a Play 5, so I have kept everything at S1. All good so far.
I recently purchased a Roam SL, on the understanding that I could set up a parallel system with the Roam SL as an S2 speaker controlled by S2 app, and everything else as S1.
However, the reality is that if any S1 speaker is switched on, I get the upgrade dialog in S2 and an "Upgrade now" button and a 'more information' button. I cannot continue to use the S2 app with the Roam SL unless I upgrade other speakers.
I would like a way around this as I'm not in the market to spend more on replacing a fully functioning speaker.
Also, the narrative on which I made my decision to purchase was based on information provided that said the two systems could co-exist. Nowhere did I read that only one system could be operational at a time.