I understand the line-in feature (on some Sonos products) has latency and is not intended for live music or as a PA system. I further understand the latency is necessary for perfectly synchronized multi-room audio from a potential variety of sources (which Sonos does better than anyone else).

With that understood, has anyone tried hosting a house party where there is a live band or DJ (e.g. playing holiday music) using an appropriate non-Sonos PA system, and in an area (for “enjoying the band/DJ”) that is separated from Sonos speakers (except one with line-in and zero output volume). Then the Sonos devices “throughout the house” are rebroadcasting the live audio (albeit delayed) as “background” music. … If you have tried a set-up like this, did it work well? How was the sound? What did you use to bridge the band/DJ’s output to the Sonos line-in?