This article indicates that there are bandwidth limitations when using uncompressed audio with line-in and many speakers: https://support.sonos.com/s/article/1080
I am trying to use iTunes as my music controller, and currently broadcast to an AirPort using AirPlay, the output being fed into a Connect - creating a "Line-In" to my Sonos system. Doing this, I have to use compressed audio to avoid cutouts. A known issue. The compressed codec (SBC) isn't great, so I'd like to use uncompressed audio if possible.
My question is if I should purchase a new Sonos with AirPlay 2 capabilities (even a Sonos One) and connect that to my system, will I have the same limitation of bandwidth and have to use compressed audio? I would plan to send music from iTunes to a Sonos One that I would then group with my other Sonos speakers. Should I be able to use uncompressed audio in this scenario?