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Answered

Older TV with Connect Amp - Humming noise when TV off

  • January 5, 2021
  • 2 replies
  • 99 views

Connect Amp and TV line-in

 

Best answer by Corry P

Hi @RDO51 

Welcome to the Sonos Community!

Sorry for the delay - as you replied to yourself, this topic wasn’t flagged up as having had no reply yet.

You can try adjusting the line-in source level as described in our Adjust Line-In settings page. There’s no correct setting - just what produces the best experience.

If that doesn’t help, you’ll probably need a ground loop isolator to remove the hum caused by voltages on the ground wire coming from the TV, such as those listed here: https://www.amazon.com/s?k=ground+loop+isolator+rca

Bear in mind you may need another cable to be able to connect the device (if the device doesn’t have it’s own, though most seem to).

I hope this helps!

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2 replies

  • Author
  • Contributor I
  • January 5, 2021

I have a connect amp connected to two ceiling speakers. My Samsung tv is connected to an apple tv with a line-in connected to the connect amp. When I turn off the TV there is a humming sound coming out of the speakers.  How can I set up without having to go to the Sonos app and un-mute the sound? 


Corry P
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  • Sonos Staff
  • Answer
  • February 26, 2021

Hi @RDO51 

Welcome to the Sonos Community!

Sorry for the delay - as you replied to yourself, this topic wasn’t flagged up as having had no reply yet.

You can try adjusting the line-in source level as described in our Adjust Line-In settings page. There’s no correct setting - just what produces the best experience.

If that doesn’t help, you’ll probably need a ground loop isolator to remove the hum caused by voltages on the ground wire coming from the TV, such as those listed here: https://www.amazon.com/s?k=ground+loop+isolator+rca

Bear in mind you may need another cable to be able to connect the device (if the device doesn’t have it’s own, though most seem to).

I hope this helps!