no audio through aux connection

Jul 13,2022
Jul 13,2022 at 12:52 pm
Jul 13,2022 at 12:52 pm

Hello all, 


I have a problem with my two new uboom L speakers. 

two questions about this.


I want to play music through an aux connection, but it does not really work. I plug the cables through the pc, play music, audio output is also set correctly and no sound comes out of the UBOOM L. 

There was no active bluetooth connection in the test. 

audio playback via Bluetooth works fine.

what am i doing wrong? 


is it possible to operate the uboom via aux in stereo mode?


thanks in advance




Hallo zusammen, 


ich habe ein Problem mit meinen zwei neuen UBOOM L Lautsprechern. 

dazu zwei fragen.


Ich möchte Musik über einen Aux-Anschluss abspielen, aber es funktioniert nicht wirklich. ich stecke die kabel über den pc an, spiele musik ab, Audioausgang ist ebenso richtig eingestellt und es kommt kein Ton aus den UBOOM L. 

Es herrschte im Test keine aktive bluetooth-verbindung. 

Audio abspielen über Bluetooth funktioniert einwandfrei.

Was mache ich falsch? 


Ist es möglich die UBOOM L per AUX im Stereo Modus zu betreiben?


Vielen Dank im Voraus


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EarFun CS Team

Staff Member

Jul 15,2022 at 2:52 am
Jul 15,2022 at 2:52 am

Hi friend,


Thanks for choosing EarFun. Sorry for the inconvenience caused.


Do you mean the speakers (in stereo mode) won't play music if you connect them with your computer via audio cable?


We kindly suggest you power on and connect only one speaker to your device via cable at a time to test.  Kindly note that in stereo mode, the audio cable needs to be plugged into the master speaker (the one that flashes blue light). 


If the above methods still could not solve your issue, could you please send us a photo of your audio cable and a video to show the issue you encountered so we can give feedback to our product team and better assist you? Please email to our customer service team via




EarFun Customer Service Team



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