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SONOS ACE : Impossible to stop Bluetooth with usb-c to jack cable

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I have a SONOS ACE and I use it only with the usbc to jack 3.5 cable because I don't want wave on my head.

I test it with an electric field meter : despite the led is white, the headphone always emits in bluetooth (10V/m instead of 0.6V/m).

This value is very very high because the bluetooth of my smartphone is off : The headphone ping in continuous to search it.

If I turn on the bluetooth with the cable and I use the Sonos application : the value decreases at 3V/m but it's again high.

I don't have this problem with my old headphone from an other mark (0.6V/m with cable, it's the environmental noise).

There a solution to really turn OFF the bluetooth or it's a software bug ?

Sonos can confirms this problem ?

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Corry PAnswer

Sonos Staff

Hi @SebMoi

Welcome to the Sonos Community! And, thanks for your post!

Sorry to hear of this issue you are having.

The quoted text does indicate that you will not be able to use Bluetooth connections when Ace is connected to a device via USB, but at no point does it say that Ace’s internal radio is deactivated completely, resulting in no Electromagnetic Radiation (EMR) whatsoever.

If EMR is a thing that concerns you, I have to side with the other posters here - return your Ace for a refund (assuming you are still in the Money Back Guarantee period) or sell it and purchase headphones that do not have Bluetooth (or WiFi) functionality instead.

Having said all that, with Bluetooth and Sound Swap unavailable, I am not sure why the radio is not deactivated - perhaps because as it is getting charged via USB, there is no need to save the battery. So, I guess it is possible that we may disable Ace’s radio while connected to USB in the future. I will mark this thread as a feature request, and it will be seen by the relevant teams for consideration. Thanks for the feedback!

I hope this helps.

Incidentally, it is for moderators to decide when someone is off-topic - if you feel a post needs to be evaluated, please report it using the 3-dot menu to the side of the post. Please do not try to police threads yourself. Thanks.

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

S

SebMoiAuthor

For information, my electric field meter is a tenmars TM-195 :

The wired mode and a good ANC are my criteria of selection.

Ken_Griffiths

Isn’t the signal you’re seeing just the Ace .BLE beacon, that allows connection to the Sonos App on say a mobile phone or tablet, even if it’s not Bluetooth paired with that phone/tablet, so that a user can go onto adjust EQ (Bass/Treble), Spatial Audio, Head Tracking, other settings etc? The settings that are not available via the hardware buttons on the Ace itself.

Airgetlam

The only Sonos folks who post in this forum are moderators, not engineers. They may be able to pass on the question, but I wouldn’t think you’d get a quick reply, if at all.

Bruce

106rallye

Not sure what “high” and “low” would mean in this case, but if you are afraid of radiation maybe using a bluetooth/wifi enabled headphone isn’t the best of ideas?

jgatie

Exactly what are the advantages of using the Sonos Ace over some quality wired headphones which do not have Bluetooth or WiFi if you are only going to use them wired?

S

SebMoiAuthor

Isn’t the signal you’re seeing just the Ace .BLE beacon, that allows connection to the Sonos App on say a mobile phone or tablet, even if it’s not Bluetooth paired with that phone/tablet, so that a user can go onto adjust EQ (Bass/Treble), Spatial Audio, Head Tracking, other settings etc? The settings that are not available via the hardware buttons on the Ace itself.

Thanks,

I think effectively the Sonos Ace continues to communicate in Bluetooth to use the Sonos application : this allow to configure it (equalizer, head tracking, ...) but the sound is transmit by wired. There is no airplan mode.

With my old headphone, in wired : Only volume, next/previous music and ANC on/off are available.

From french user guide :.

"Le Bluetooth est désactivé lorsque Sonos Ace est connecté à un appareil avec un câble USB-C. La lumière affichera un blanc fixe."

S

SebMoiAuthor

The only Sonos folks who post in this forum are moderators, not engineers. They may be able to pass on the question, but I wouldn’t think you’d get a quick reply, if at all.

Thanks,

I go to ask directly to Sonos by mail.

S

SebMoiAuthor

Exactly what are the advantages of using the Sonos Ace over some quality wired headphones which do not have Bluetooth or WiFi if you are only going to use them wired?

I work in an open space and I need a good active noise cancelling. Do you know other models only wired, with ANC and at this price ? Me, not.

Sonos Ace is a very good product but it's a problem for me. For example, I have 10V/m at 5cm of my box wifi (I don't know if it's the same frequency).. Electrical radiation can cause tissue heating.

AjTrek1

@SebMoi

I’m really not understanding your issue as it appears it could have been easily avoided.

The Ace was designed as a headset to audio swap with specific Sonos sound bars
The Ace also offers BT connectivity with a source that can transmit audio to them via BT
The Ace also offers connectivity via USB-C to an audio source

You obviously have a specific use case for headphones which is number three (3) above. That said why did you purchase the Ace knowing it has BT capability that you prefer not to use; as there are plenty of wired headsets with no BT capability on the market? 🤔

Click here for wired headsets with no BT

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

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SebMoiAuthor

@SebMoi

I’m really not understanding your issue as it appears it could have been easily avoided.

The Ace was designed as a headset to audio swap with specific Sonos sound bars
The Ace also offers BT connectivity with a source that can transmit audio to them via BT
The Ace also offers connectivity via USB-C to an audio source

You obviously have a specific use case for headphones which is number three (3) above. That said why did you purchase the Ace knowing it has BT capability that you prefer not to use; as there are plenty of wired headsets with no BT capability on the market? 🤔

Click here for wired headsets with no BT

You are off topic.

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