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Hello Sonos Community,

I have some questions regarding my new setup before I place an order.

I currently own two SONOS IKEA Symfonisk Bookshelf speakers. They are set up in stereo mode facing my couch on the TV stand.

I am planning to install a projector, which will be installed behind the couch to have enough distance (it's a standard projector, not a short-throw one).

I'm looking for a solution to send the audio from this projector via HDMI output or audio jack, while simultaneously playing the sound on my Symfonisk Bookshelf speakers.

The solution I thought of is to purchase a pair of SONOS ERA 100, place them next to the projector (behind the couch), and connect them via a USB-C to Jack adapter so they can play the projector's sound without latency.

But, will the sound be automatically sent to my Sonos Symfonisk Bookshelf speakers, which will be under the projection screen in front of the couch, and without latency?

Thank you for your help!

Alban

Unfortunately, there is an unavoidable latency.  The analog Line-In on all Sonos speakers will incur a 75 ms delay to account for buffering.  Most people will experience lip synch problems due to this delay.  The only Sonos devices that will have no apparent delay are the soundbars and the Amp when connected via HDMI-ARC or optical output on the display device.