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Wireless set up for XGIMI Horizon 20 pro, Playbar & Sub using Ugreen wireless extender transmitter & receiver (CM506), Ugreen audio splitter HDMI to optical spdif convertor (CM677)

  • September 8, 2026
  • 2 replies
  • 6 views

I have a Xgimi Horizon 20pro projector, Sonos playbar, Ugreen wireless extender transmitter & receiver (CM506), Ugreen audio splitter HDMI to optical spdif convertor (CM677). As I don't want to run a long optical cable across the 5 meter floor, how do I set this up to wirelessly connect horizon 20pro to Sonos playbar? My projector doesn't seems to detect any device from HDMI ARC. Able to advise?

2 replies

buzz
  • September 8, 2026

What are your sources? Where are they located?


Airgetlam
  • September 8, 2026

First off, any optical port on a Sonos will only handle at best Dolby Digital, including the PLAYBAR, so I wouldn’t want to set any device to send anything ‘above’ that, like Dolby Digital Plus or Atmos.

Frankly, I’m not certain there are many users on this forum who have a ‘wireless’ connection to any Sonos soundbar, but @buzz is the most likely to work through your setup. 
 

As a note, optical is a one way transmission, ARC (or eARC) requires two way communication. As soon as you introduce an optical connection anywhere, your ARC will no longer be able to recognize what’s past that optical connection.