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Dsadosky89
Contributor I
March 20, 2026

era 300 popping/crackling sound

Sonos arc ultra with 4 era 300 and 2 gen4 subs all grouped together now popping and crackling randomly while watching tv. All firmware updated all have perfect WiFi signal. Arc ultra plugged into tv eArc. Who else has this issue and how do I fix it. 

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3 replies

Stanley_4
Stanley_4
Grand Maestro
March 20, 2026

Do you have the 300s as two stereo pairs or as singles?

Are the Subs bonded to tne 300s or the Arc?

If you un-Group them which still make the noises?

Are the noises only in TV mode or also streaming mode?

    Airgetlam
    Airgetlam
    March 20, 2026

    Also, have you called Sonos Support to discuss it? What did they tell you? 

    Bruce
    MoPac
    MoPac
    Headliner III
    March 20, 2026

     When watching TV grouped rooms may suffer from signal drops which could cause the noise you are describing.  One pair of 300s should be added to the Arc Ultra as surrounds.  Are you trying to group the other 300s in another room to listen to the same TV sound being played from the Arc Ultra?

    EDIT:  Just tried it here where I grouped a pair of Move speakers while my surround system ( Arc-Sub-300s ) was playing TV sound.  Worked OK here.  The Move pair was one room away from the TV room.

     I do remember trying this a few years ago in an attempt hear the news while eating dinner in the kitchen area.  At that time the speakers in the kitchen suffered from dropouts.

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