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Loud hum on sonos 5 when playing from a pre-amp turntable

  • 21 April 2022
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I bought the pro-ject turntable with the pre-amp that was recommended by Sonos to connect to a sonos 5. I was getting a loud low hum coming through the speakers and I couldn’t find a way to ground the turntable to the speaker. I tried buying an upgraded rca cable that didn’t have the grounding wire, the sound quality improved a little but it still has a very heavy low hum. Is there a way that I can ground the other end of the wire to the line in on the sonos 5?

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Best answer by GuitarSuperstar 21 April 2022, 17:51

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Userlevel 7

Under the Line-In settings for the Five, what is the Source Level set to? If you adjust it lower, does it make any difference?

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