2 to 4 channels passive mixer circuit question

Discussion in 'Hi-Fi Stereo Systems & Separates' started by Bert84, Apr 1, 2016.

  1. Bert84

    Bert84
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    I'm a newbie here so hi everyone! I'm mostly into the arcade restoration hobby.

    My current project is trying to mix stereo sound from mp3 player with the 4 channels game sound output. The circuit I made here works but I have two issues. The mp3 player level is too low and when I connect the mp3 player, I notice the game music level will lower slightly. I use all 10k resistors.

    Do you have any suggestions as to what I should improve? Change resistors, add capacitors?

    Thanks.

    [​IMG]
     
  2. Bert84

    Bert84
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    tmp_15501-IMG_20160401_163713-38073418.jpg

    How about I replace the mp3 10k by 180ohm? And have the 10k before it splits?
     

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