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Class D Switching Power Amplifiers and Power D/A conversion

Floor noise tpa3116 with wired pots out board
Floor noise tpa3116 with wired pots out board
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Old 17th May 2020, 01:50 AM   #1
Riveiro is offline Riveiro
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Join Date: Apr 2020
Default Floor noise tpa3116 with wired pots out board

Hello guys!
I have a problem with tpa3116d2 board and I need some help.
I recently made a boombox speaker with the look of retro marshall models, the problem is that when I separate the potentiometers from the board and mount it them with 10cm of cable, the speaker has background noise as if the cables were antennas, when i put my hand near of the potentiometers also increases noise... and more if i touch them. Is there anything i can do to fix it? I put an aluminum shield over the wires each potenciometer and put it to gnd and results are better but the noise is audible yet.
Thank you very much for your responses.

speaker picture: Shared album - Diego Riveiro - Google Photos
Shared album - Diego Riveiro - Google Photos
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