I believe both the old and the new Sonos Amp have line-in inputs which can then be shared as the source with other Sonos units. I think there was a dedicated S

I believe both the old and the new Sonos Amp have line-in inputs which can then be shared as the source with other Sonos units. I think there was a dedicated Sonos line-in unit that was cheaper than the Amp, but I can’t recall its name. https://support.sonos.com/en-us/article/use-line-in-on-sonos https://support.sonos.com/en-us/article/use-line-in-on-sonos