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Stanley_4
Stanley_4Answer
Grand Maestro
September 20, 2025

If you go beyond the old 5.1 sound and look at Atmos and the Ultra gives you 9.1.4 and adding a pair of 300s gives six more channels each in the rear.

4 replies

Senior Virtuoso
September 20, 2025

No. 

Lyricist II
September 20, 2025

Hey there — I tried opening the sonos surround discussion but hit an internal error. If you want, I can help you draft a reply for when it’s fixed; just tell me what issue they’re raising (audio sync / speaker placement / connectivity etc.).

Senior Virtuoso
September 20, 2025

The Arc Ultra provides the 3 front channels. A single pair of Eras as surrounds gives you the 5.x, and of course the Sub makes up the .1 creating a 5.1 system. There’s no option for more speakers. 

Stanley_4
Stanley_4Answer
Grand Maestro
September 20, 2025

If you go beyond the old 5.1 sound and look at Atmos and the Ultra gives you 9.1.4 and adding a pair of 300s gives six more channels each in the rear.