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Answered

In wall arc hdmi cable?

  • February 1, 2026
  • 5 replies
  • 50 views

Hi, 

Planning an outdoor entertainment wall with tv and gonna put Sonos AMP in a closed drawer under the TV and hook up to outdoor speaker wires. 

I am trying to understand how to run the ARC hdmi cable to the TV.  Do I run the entire ARC HDMI cable from the sonos amp in the drawer, in-wall and out to the TV.  Or can I use HDMI outlets on either side or are there designated outlets for just ARC HDMI..  I will run a standard HDMI cable from my IPTV box to the TV via outlets . Thanks

 

Best answer by Airgetlam

The Amp, not supporting Atmos, doesn’t need the bandwidth provided by eARC. It does have an ARC connection, and identifies itself through CEC (including what formats it can play) in that fashion. So an eARC capable cable will also handle ARC.

Seems like your plan is sound, 

5 replies

Airgetlam
  • February 1, 2026

You have to use the ARC-HDMI port from the TV. Any other devices would go into the other available ports, they aren’t carrying the ARC signal. 
 

If you’re placing HDMI cable inside the wall, it might be worth double checking local codes, but then the amount of electrical transmission is fairly low on that cable. 


Stanley_4
  • Lead Maestro
  • February 1, 2026

Make sure your cable choice supports eArc signals.


AjTrek1
  • February 1, 2026

You might also consider a weather-proof enclosure for the Sonos Amp as well as covered GFCI electrical outlets. 

Note: The outlet in the picture is not GFCI. Just wanted to show what a cover would look like.

 

 

 

 

 

 


  • Author
  • Contributor I
  • February 1, 2026

Thanks for the responses. 
 

i thought the amp does not support eARC

 

So the way I understand this is a direct connection between the tv and amp - need a long in wall rated hdmi eARC cable and good to go. 


Airgetlam
  • Answer
  • February 2, 2026

The Amp, not supporting Atmos, doesn’t need the bandwidth provided by eARC. It does have an ARC connection, and identifies itself through CEC (including what formats it can play) in that fashion. So an eARC capable cable will also handle ARC.

Seems like your plan is sound,