If you want to add the Era 100 as surrounds, it has to be a pair of Era 100s. You cannot just add one surround speaker.

This is applicable for any Sonos speakers, not just the Era line. Any surround sound setup must be a pair of speakers. 

Hi

following up from this question. Can I ask.

I have a beam 2 and am thinking of purchasing 1 x Era 100.

My question is.  Not using it when the tv is on….can I link the beam and the singular Era 100 together to give me a better sound when simply listening to music?

Thanks

Dom

You can, but that is not necessarily better sound.  You'd lose any stereo effects from the Beam.  Though sound is subjective, I'd consider that worse.

Thanks jgatie!