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ERA 300 single rear speaker with two rear One speakers

  • July 22, 2023
  • 3 replies
  • 238 views

Hi, I currently have the Sonos Arc, Gen 3 Sub, and a pair of One rear speakers. My question is, can I add an additional speaker to the rear surround? Is it possible to add the Era 300 to support the pair of  One rear surround speakers. Basically, have the Era 300 serve as a center rear speaker. The ERA 300 will produce the Atmos experience and the two One speakers will be forward rear sound. Or should I remove the pair of One speakers and add two Era 300 speakers. My idea is to not have the original purchase of the One speakers become obsolete.

Thanks for your support Sonos community!

Best answer by buzz

The ERA 300’s would replace the pair of ONE’s now used as surrounds. The maximum configuration for ARC is ARC+(2) Surrounds+(2) SUB’s. The ONE’s could be repurposed as two additional mono Rooms or one stereo Room. It is not possible to add additional front or surround speakers.

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3 replies

buzz
  • Answer
  • July 22, 2023

The ERA 300’s would replace the pair of ONE’s now used as surrounds. The maximum configuration for ARC is ARC+(2) Surrounds+(2) SUB’s. The ONE’s could be repurposed as two additional mono Rooms or one stereo Room. It is not possible to add additional front or surround speakers.


  • Author
  • Contributor I
  • July 22, 2023

Thank you for the quick response and detailed explanation. 


106rallye
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  • July 22, 2023

I do not know of any sound system with a rear center.