Answered

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

Forum|Forum|1 month ago
September 4, 2026
34 replies
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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

Best answer by Corry P

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!

Mr. T

For scenarios 4 and 5, I think you mean “transfer music” rather than the stated TV audio, since you are not in room 1 for either scenario.

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.

Mr. T

You may also have meant music in scenario 3, as although in room 1 it was music that was playing.

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?)

AjTrek1

I may be over simplifying this…

For TV Audio swap it’s basically a line of sight over the 5Ghz. If you leave the room the Audio will eventually drop from any Ace.

If Linking for music (Ace Ultra) you are basically on WiFi hence you can move to any room and the Link will be maintained. Dis-engaging the link no matter where you are should return the audio to the original source and the Ace Ultra resets to allow Linking or TV Audio Swap to a different source.

Using the Ace Ultra for Linking should not (TMWOT) willy-nilly drop the original source and connect to another source just being in the proximity of a different source that is playing music. That would be very upsetting to me if I started listening to classical via Linking and because I enter a room where my wife is listening to Jazz have the Ace Ultra drop my link and steal my wife’s music. Needless to say she’d be irritated as well. 😂

Together Everyone Achieves More = T.E.A.M.

Mr. T

If Linking for music (Ace Ultra) you are basically on WiFi hence you can move to any room and the Link will be maintained. Dis-engaging the link no matter where you are should return the audio to the original source and the Ace Ultra resets to allow Linking or TV Audio Swap to a different source.

No, that is incorrect.

In the Open House Keynote video, Tom initially swaps audio from the turntable/Fives in the Den to Ace Ultra, then moves to family room and swaps the audio from Ace Ultra to the Beam. It does not automatically return to the original source, but to the speaker/room you are closest with.

User117655

Prodigy II

As @Mr. T says, see about 2:30 in...

AjTrek1

If Linking for music (Ace Ultra) you are basically on WiFi hence you can move to any room and the Link will be maintained. Dis-engaging the link no matter where you are should return the audio to the original source and the Ace Ultra resets to allow Linking or TV Audio Swap to a different source.

No, that is incorrect.

In the Open House Keynote video, Tom initially swaps audio from the turntable/Fives in the Den to Ace Ultra, then moves to family room and swaps the audio from Ace Ultra to the Beam. It does not automatically return to the original source, but to the speaker/room you are closest with.

Well if that’s the case the speaker taking the audio better not be in use. As I can see major problems with your senario if someone else is using the speaker. Like my wife ☹️

I hope the Ace Ultra is smart enough not to steal audio from a speaker already in use.

Together Everyone Achieves More = T.E.A.M.

Mr. T

If Linking for music (Ace Ultra) you are basically on WiFi hence you can move to any room and the Link will be maintained. Dis-engaging the link no matter where you are should return the audio to the original source and the Ace Ultra resets to allow Linking or TV Audio Swap to a different source.

No, that is incorrect.

In the Open House Keynote video, Tom initially swaps audio from the turntable/Fives in the Den to Ace Ultra, then moves to family room and swaps the audio from Ace Ultra to the Beam. It does not automatically return to the original source, but to the speaker/room you are closest with.

Well if that’s the case the speaker taking the audio better not be in use. As I can see major problems with your senario if someone else is using the speaker. Like my wife ☹️

That is if you use the Content Key. I’d imagine if you just turned Ace Ultra off then the audio would be returned to the original source. Therefore, depending on how and where you “dis-engage” the link determines the possible outcomes.

AjTrek1

If Linking for music (Ace Ultra) you are basically on WiFi hence you can move to any room and the Link will be maintained. Dis-engaging the link no matter where you are should return the audio to the original source and the Ace Ultra resets to allow Linking or TV Audio Swap to a different source.

No, that is incorrect.

In the Open House Keynote video, Tom initially swaps audio from the turntable/Fives in the Den to Ace Ultra, then moves to family room and swaps the audio from Ace Ultra to the Beam. It does not automatically return to the original source, but to the speaker/room you are closest with.

Well if that’s the case the speaker taking the audio better not be in use. As I can see major problems with your senario if someone else is using the speaker. Like my wife ☹️

That is if you use the Content Key. I’d imagine if you just turned Ace Ultra off then the audio would be returned to the original source. Therefore, depending on how and where you “dis-engage” the link determines the possible outcomes.

To your point that needs to be clear in the documentation so as not to cause a ruckus in the home.

Together Everyone Achieves More = T.E.A.M.

melvimbeAuthor

You may also have meant music in scenario 3, as although in room 1 it was music that was playing.

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?)

Oops. Looks like I didn’t proofread enough. Corrections made to the original post.

Danny

Mr. T

From the support documentation, I still believe headphone linking only applies to music, with no change to how TV Audio Swap works currently.

Therefore, clarification from Sonos would be helpful.

TV Audio Swap applies to TV audio.

Headphone linking applies to music, with no crossover between the two.

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