Skip to main content
melvimbe
Sep 4, 2026 12:34 PM UTC
Answered

Headphone Linking, TV Audio Swap, and app control for Ace Ultra

I have a few questions regarding how Headphone Linking, TV Audio Swap, and app control are going to work  for Ace Ultra in a couple different situations.

Say you have a Sonos System with the following rooms setup.

Room 1 - Arc Ultra

Room 2 - Era 100

Room 3 - Era 300

Room 4 - Ace Ultra

 

Scenario 1 -

Action - Room 1 is playing TV Audio.  While in room 1, with the  Ace Ultra, press (hold) the content key to transfer TV audio to the Ace Ultra.  Audio stops on Room 1 and plays on the Ace Ultra.    Press the content key again while still in room 1.

Result  - Audio stops on Ace Ultra and returns to room 1.  Standard TV Swap scenario.

 

Scenario 2 -

Action - Room 1 is playing TV Audio.  While in room 1, with the  Ace Ultra, press (hold) the content key to transfer TV audio to the Ace Ultra.  Audio stops on Room 1 and plays on the Ace Ultra.    Move to room 2 and press the content key.

Result  - Audio stops on Ace Ultra and returns to room 1? (or does TV audio transfer to room 2?)

 

Scenario 3 -

Action - Room 1 is playing music.  While in room 1, with the  Ace Ultra, press (hold) the content key to transfer music to the Ace Ultra.  Audio stops on Room 1 and plays on the Ace Ultra.    Move to room 2 and press the content key

Result  - Audio stops on Ace Ultra and plays on room 2 ? (this is a headphone linking scenario, not TV audio swap?)

 

Scenario 4 -

Action - Room 2 is playing music.  While in room 2, with the  Ace Ultra, press (hold) the content key to transfer music to the Ace Ultra.  Audio stops on Room 2 and plays on the Ace Ultra.    Move to room 1 and press the content key.

Result  - Audio stops on Ace Ultra and plays on room 2 ? (this is a headphone linking scenario, not TV audio swap?)

 

Scenario 5 -

Action - Room 2 is playing music.  While in room 2, with the  Ace Ultra, press (hold) the content key to transfer music to the Ace Ultra.  Audio stops on Room 2 and plays on the Ace Ultra.    Move to room 3 and press the content key.

Result  - Audio stops on Ace Ultra and plays on room 3...standard headphone linking  scenario.

 

Scenario 6 -

Action - Room 1 is playing music.  Using the Sonos App, group room 1 and room 4.

Result  - Audio plays on both room 1 and room 4 in sync.  Standard grouping scenario?

 

Scenario 7 -

Action - Room 1 is playing TV Audio.  Using the Sonos App, group room 1 and room 4.

Result  - Audio plays on both room 1 and room 4, with room 4 slightly delayed? Standard grouping scenario with the delay for TV audio?

 

Scenario 6 -

Action - No audio is playing in your system.  Using the Sonos App, initiate music playback on room 4.

Result  - Music plays on room 4?

 

edit: Fixed grammar

Corry P
Corry PAnswer
Sonos Staff
Sep 11, 2026 8:13 AM UTC

OK, I have a few answers for you all. Some of the questions may have originated from different Community threads, but I think it best to have the answers here all together.

Will Ace Ultra show as a room in the Sonos app?
Only while Linked to a compatible speaker.
In addition, it will count towards the 32-device limit - if you already have 32 Sonos devices and try to Link Ace Ultra to one of them, the Link will likely fail.

Can it play independently via the app, or does content need to be on a speaker first?
Content must come from a speaker first when the Content Key (the slider button on the headphones) is used - Ace Ultra cannot be targeted by the Sonos app in the way that, say, a Roam, Play or any other Sonos player, can. Should the Linked speaker be turned off or disconnected, playback on Ace Ultra will cease - the headphones are not an independent playback endpoint.

Content can be played to Ace Ultra via the Sonos app without being played on a speaker first, but the Link must be made with a compatible speaker before Ace Ultra will show in the app. This does mean playback can be initiated silently (without disturbing anyone else in the house - the Link is made, then the content is chosen from the Sonos app and started, all without anyone else hearing anything).

If the audio is pulled from an active group of speakers using the Content Key or the Sonos app, that group will be disbanded. Other types of bonded/paired rooms/zones will remain as they were. Disbanded groups will not be re-grouped when the content is pushed back to a speaker using the Content Key on the headphones - indeed, the content might not even go back to a speaker that was in the group initially. The Sonos app can be used instead of the Content Key when pushing content back to a speaker, in which case the user has control over the destination, and can regroup the speakers from there.

The content that is playing on Ace Ultra from a Linked speaker can be changed in the Sonos app without affecting the Link.

Do older/incompatible speakers work, or does the currently playing speaker itself need to be compatible?
The currently playing (Linked-to) speaker must be on Sonos’ compatibility list when the Content Key is used, it is not enough for a compatible speaker to merely be present somewhere else on the system. Due to the ultrasonic pulses and proximity detection used, older players such as Play:5 Gen 2 cannot be Linked with Ace Ultra.

The Output Picker in the Sonos app can be used to redirect playback from an incompatible speaker, as long as there is a compatible speaker Linked in the system.

Compatibility list caveat:
Thanks to the input of our Sonos Community members, the discrepancies between some of the sales and support pages regarding which speakers are compatible have been corrected. Beam Gen 1/2, Amp, Arc, Arc SL, Arc Ultra, Five, Roam/Roam SL/Roam 2, Move 2, Ray, Era 100/100 Pro/100 SL, Era 300, Sonos Play & Beam Ultra are all compatible (unless configured as surrounds, but if they are, there is likely a compatible soundbar there in the room anyway, though the Sonos Fabric will prefer to use other available Linking hosts first).

Playing TV Audio from a Grouped speaker?
No - you will hear an error tone. If you want TV audio playing on Ace Ultra, the way to do it is with TV Audio Swap (identical to how Ace works), which is a separate feature. Besides, a grouped speaker will leave the group when Linked to Ace Ultra, so it would no longer be playing that TV source from the moment of Linking anyway.

I hope this helps!

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

34 replies

World-Class Superstar
Sep 11, 2026 3:57 PM UTC

It's still not clear to me. Once I've linked the Ace Ultra to my Era 100 do I need to stream music from my library to the Era 100 and then transfer it to the Ace Ultra? Or can I stream it directly to my Ace Ultra? Another question: (just to make sure) the linking process needs to be done only the first time? Or do I need to link every time I want to use the Ace Ultra?

Translate
AjTrek1
Sep 11, 2026 4:39 PM UTC

It's still not clear to me. Once I've linked the Ace Ultra to my Era 100 do I need to stream music from my library to the Era 100 and then transfer it to the Ace Ultra? Or can I stream it directly to my Ace Ultra? Another question: (just to make sure) the linking process needs to be done only the first time? Or do I need to link every time I want to use the Ace Ultra?

Short Answer…

As I understand it the linking process requires the target speaker to be actively streaming music before the Ace Ultra can interact with it. I could be wrong but that’s my understanding at the moment.

Translate
Together Everyone Achieves More = T.E.A.M.
Mr. T
Sep 11, 2026 4:55 PM UTC

It's still not clear to me. Once I've linked the Ace Ultra to my Era 100 do I need to stream music from my library to the Era 100 and then transfer it to the Ace Ultra? Or can I stream it directly to my Ace Ultra? Another question: (just to make sure) the linking process needs to be done only the first time? Or do I need to link every time I want to use the Ace Ultra?

It is answered in the answer to this thread.

 

Can it play independently via the app, or does content need to be on a speaker first?

Content can be played to Ace Ultra via the Sonos app without being played on a speaker first, but the Link must be made with a compatible speaker before Ace Ultra will show in the app.

 

It was also confirmed elsewhere, headphone linking process only has to be completed once to add Ace Ultra to the Sonos system.

Translate
Headliner I
Sep 11, 2026 5:22 PM UTC

Linking is a fine feature, don't get me wrong. But it seems in and of itself to have relatively limited utility. My personal use would be limited to pulling active music from my surround system into the headphones. Then transferring to another speaker elsewhere isn't something I personally would do. Hyping that aspect as they did at roll out seems excessive but who am I to judge.

And if it can't carry spatial music even less value.

Translate