Skip to main content
Answered

sonos amp takes audio from headphones

  • June 10, 2025
  • 12 replies
  • 124 views

I have an amp and Ace headphones. The amp is connected to my Samsung laser projector through hdmi arc and my headphones through Bluetooth. Whenever I select the audio output to Bluetooth it selects it for a second and the the amp recapture the audio selection

Best answer by 106rallye

It is the Sonos application of CEC. If you temporarily disable CEC on the projector, the Bluetooth connection will hold.

This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.

12 replies

jgatie
  • 28217 replies
  • June 10, 2025

TV Audio Swap for the Ace is not supported on the Amp, and the Amp cannot broadcast Bluetooth.

 

https://support.sonos.com/en-us/article/listen-to-your-tv-with-sonos-ace-tv-audio-swap

Supported home theater speakers

You can use TV Audio Swap with the following home theater speakers:

  • Arc
  • Arc SL
  • Arc Ultra
  • Beam (Gen 1)
  • Beam (Gen 2)
  • Ray

Stanley_4
  • Lead Maestro
  • 12405 replies
  • June 10, 2025

I'm really bad at TV advice,,,

I think If you are using the projectors Bluetooth you will need to change the projector settings to not use the Amp as the output.

Might look at any autoplay options too, have the Amp not play TV sound when the TV comes on, only when manually selected.


106rallye
Forum|alt.badge.img+18
  • 6600 replies
  • Answer
  • June 11, 2025

It is the Sonos application of CEC. If you temporarily disable CEC on the projector, the Bluetooth connection will hold.


  • Author
  • Contributor I
  • 4 replies
  • June 11, 2025

Thank you, I am trying to change the audio input on the projector from the amp (CEC) to the Ace headphones (Bluetooth). Before I had the amp, I had a Pioneer receiver and did not have this problem


jgatie
  • 28217 replies
  • June 11, 2025

Thank you, I am trying to change the audio input on the projector from the amp (CEC) to the Ace headphones (Bluetooth). Before I had the amp, I had a Pioneer receiver and did not have this problem

 

CEC is a “standard” with very loose standards.  Some TVs allow you to switch between a soundbar and Bluetooth all you like, others always default to the soundbar no matter what you try.  This is why we ultimately recommend disabling CEC to get a stable Bluetooth connection. 


  • Author
  • Contributor I
  • 4 replies
  • June 11, 2025

Again, the Pioneer receiver with the same projector worked fine. Even when trying to switch to the internal projector speaker or the optical is not possible. The amp claims the audio input back


jgatie
  • 28217 replies
  • June 11, 2025

Again, the Pioneer receiver with the same projector worked fine. Even when trying to switch to the internal projector speaker or the optical is not possible. The amp claims the audio input back

 

As I stated, CEC standards are anything but standard.  Some devices/configurations work fine, others don’t.  Pointing the blame is not really going to solve anything.  Bottom line, if you wish to listen to Bluetooth headphones with your system’s current configuration, turn off CEC. 


  • Author
  • Contributor I
  • 4 replies
  • June 11, 2025

Is it possible to turn off the cec from the amp? The projector turns off the sound when turning off arc- cec


106rallye
Forum|alt.badge.img+18
  • 6600 replies
  • June 11, 2025

It should not turn off the sound streamed via Bluetooth.


buzz
  • 24656 replies
  • June 11, 2025

Some TV’s and projectors will limit audio format options if CEC (or ‘Anynet’ as SAMSUNG calls it) is disabled. A CEC blocker can work around this, but may introduce some operational annoyances. The blocker will allow the projector to send out its attempts to control everything, but these attempts will not reach the other components. Likewise the other components will not be able to control the projector.


  • Author
  • Contributor I
  • 4 replies
  • June 11, 2025

Thanks for all the suggestions. So there is no way to turn off the cec from the amp side.


jgatie
  • 28217 replies
  • June 11, 2025

Is it possible to turn off the cec from the amp? The projector turns off the sound when turning off arc- cec

 

It’s supposed to turn off the sound to the soundbar. That’s the whole idea behind CEC, when it is off, the soundbar isn’t recognized.  You should still be able to connect via Bluetooth, which isn’t included in CEC.