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ml17
Contributor II
June 21, 2023
Answered

how to connect turntable ground wire to Sonos port?

  • June 21, 2023
  • 6 replies
  • 2008 views

Hi, How do connect a turntable ground wire to Sonos port? I have a turntable (Dual 429 CS - https://hifi.dual.de/en/products/automatic/cs-429/) that has a ground out, but Sonos port does not have a place to connect that ground out. Any work-around this? Has anyone come-across this issue? 

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Best answer by buzz

Turntable ground wires are usually connected to the preamp, PORT does not contain a preamp therefore PORT does not offer a ground lug.

6 replies

buzz
buzzAnswer
Grand Maestro
June 21, 2023

Turntable ground wires are usually connected to the preamp, PORT does not contain a preamp therefore PORT does not offer a ground lug.

    Ralpfocus
    Prodigy III
    June 21, 2023

    Ate you getting any hum from your setup if not you probably don't need to do anything.

     

    ml17Author
    Contributor II
    June 23, 2023

    I have not purchased the port yet. This is a pre-purchase question as usually there is a ground connection in an amplifier, but in this case like you mention I may not need a ground to the port and hopefully there will be no humming or buzz in the sound. Thanks again. 

    melvimbe
    melvimbe
    June 23, 2023

    I have not purchased the port yet. This is a pre-purchase question as usually there is a ground connection in an amplifier, but in this case like you mention I may not need a ground to the port and hopefully there will be no humming or buzz in the sound. Thanks again. 

     

    it looks like your turntable has a preamp built in.  Make sure you use the ‘audio port’ RCA ports on the turntable, not the phono.

    Danny
    tsmith76
    Lyricist I
    July 16, 2023

    I have the same issue. I just noticed the buzz on my music hall turntable that’s connected to my Port. It has a built in amp, and I connected the cables from the audio ports to the Sonos Port. There’s also a phono/line switch on the back of the turntable that I switched to line. Is there another way to ground that wire on the Port end? Thanks!

    Airgetlam
    Airgetlam
    July 16, 2023

    You would want to ground to another device, such as a receiver, or even the wall, but not to the Sonos Amp. 

    Bruce
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