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Hi,

Not sure if anyone has asked that already (couldn’t find any posts) but why the ERA300 cannot be used with the SONOS amp and SUB as surround speakers. Why do one need to use the ERA100’s ??

I didn’t expect that one would have to get the ARC in order utilize these great speakers as the surrounds

Era 300’s need an Atmos capable device to command them as surrounds - in a surrounds set up all sound is managed by the soundbar/Amp. The Amp isn’t Atmos capable.

So Era100 doesn't need atmos amd 300s do need? Where the logic in it?

So Era100 doesn't need atmos amd 300s do need? Where the logic in it?

Era 100s are, to a degree, the equivalent of the previous Ones. 

Era 300s have up-firing speakers and are more advanced. You would usually buy the Era 300s to 1) maximise the potential from Dolby Atmos/Spacial music playback, and/or 2) generate a Dolby Atmos home cinema set up which would already include a Dolby Atmos-capable soundbar. 

If you don’t have an Atmos-capable soundbar then there is no reason to buy the Era 300s for your surround sound needs. The Era 100s will perform incredibly well as surrounds with your set-up. 

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