La Boite Concept LX X Notice D'utilisation page 72

6 / Swap to PHONO source by switching the button on the input panel.
7 / Plug your turntable's audio signal cable into the RCA input. Connect your turntable's ground
wire to the GROUND PIN. Then plug in your turntable to the power socket inside the trapdoor.
Do not forget to pass the cables through the hole designed for the purpose.
8 / Press the RCA / PHONO button on the control panel to select the source.
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