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Contributor I
August 16, 2025
Answered

Does my TV support e-arc

I just hooked up my new arc ultra to my equally new lg b4 83 inch tv. Although my new lg is described as having an e-arc hdmi connection, it only says ARC on one of the HDMI’s I plugged into. I haven’t been able to verify in my app or on the tv or my Sonos app on my phone that I’m receiving Dolby atmos signal when I play an atmos  source such as the movie A Star is Born(Lady Gaga). 
‘The sound is good but the spatial separation is weak  I did set it up through true Play

 

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Stanley_4
Stanley_4Answer
Grand Maestro
August 16, 2025

The LG sales sheet shows eARC on HDMI 2 

https://www.lg.com/us/tvs/lg-oled83b4aua-oled-4k-tv

3 replies

jgatie
August 16, 2025

You can verify the format of the TV source on the Now Playing screen of the Sonos app.  

 

Stanley_4
Stanley_4Answer
Grand Maestro
August 16, 2025

The LG sales sheet shows eARC on HDMI 2 

https://www.lg.com/us/tvs/lg-oled83b4aua-oled-4k-tv

AjTrek1
August 16, 2025

Also what source are you using to view the movie? Such as:

  • 4K Disc
  • AppleTV
  • Other
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