2020 LG 77" OLED and ARC + Sonos Amp and In-Wall Speakers - Will I get true 5.1 surround modes from the HDMI eARC?

  • 21 October 2021
  • 1 reply

For those that may have the LG 2020 CXPUA series TVs and are using them with an Arc sound bar and Sonos Amp plus in-wall speakers, do you get true 5.1 surround modes out of the LG’s HDMI eARC?  I realize that this question is probably best posed to LG tech support but the dummies kept reading “2.2 Speaker System” back to me off the website and that wasn’t my question. 

Will the HDMI eARC send true 5.1 surround modes to the Sonos Arc sound bar and then wirelessly to in-wall speakers through the Sonos Amp?  Or will it be some simulated surround sound?


Best answer by GuitarSuperstar 22 October 2021, 00:19

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Userlevel 7

If you have a 5.1 source, the CX will pass through 5.1 audio to the Arc and Amp home theater setup.