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A10 soundcard grounding to PC

Discussion in 'Technical Issues (Archive)' started by James Cook, May 31, 2013.

  1. James Cook

    James Cook Forum Member

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    I set up my Traktor Scratch Pro to my desktop PC. I can't figure out how to get rid of the hum from the A10 soundcard not being grounded, I tried grounding it to my mixer but that did not work.

    Sorry for making all these threads but Im lost with this crap.

    Thank you in advance.
     
  2. Ricky Woofer

    Ricky Woofer Account Suspended

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    1,056
    Why is it not grounded? Or whats not grounded?
    Grounded toure soundcard to youre mixer? Huh?
    You mean youre turntables?
     
  3. James Cook

    James Cook Forum Member

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    Im using a X1 and a mixer. No tables. I went from using my macbook to using my PC. Now there is a hum, the hum stops when I remove the USB cord running from my A10 to my PC tower.

    Im pretty sure its my soundcard.
     
  4. makar1

    makar1 Forum Member

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    3,343
    Sounds like a ground loop which is caused by grounds at different potentials in your system.

    What speakers are you using, and are they connected to a separate power socket?
     
  5. James Cook

    James Cook Forum Member

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    I plugged my speaker back into the power bar that has everything else running out of it. I do have a ground loop Im not sure what to do.
     
  6. makar1

    makar1 Forum Member

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    3,343
    How are your speakers connected to your mixer?
     
  7. James Cook

    James Cook Forum Member

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    A rca cable. Im prfetty sure its the sound card as when I unplug the usb from the PC tower the hum stops. Also when I use my macbook there is no ground issue.

    I think I need s DSI or wahtever its called.
     
  8. makar1

    makar1 Forum Member

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    3,343
  9. James Cook

    James Cook Forum Member

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    30
    I attach this to my mixer and sound card?


    Ty for the reply
     
  10. makar1

    makar1 Forum Member

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    3,343
    Between your mixer and speakers.
     
  11. James Cook

    James Cook Forum Member

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    My main mixer I use a XLR cable. My current mixer is a beater while my PMC 50a is in getting servied
     
  12. makar1

    makar1 Forum Member

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    3,343
    Do the mixer or speakers have ground lift switches? You could also try removing the signal ground from the XLR cables.
     
  13. James Cook

    James Cook Forum Member

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    No ground lift switch on either. The hum is caused from the USB going into the PC tower. Its brutal
     
  14. makar1

    makar1 Forum Member

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    3,343
    You might need to use ground loop isolators for each mixer channel if the loop is happening somewhere between the PC and mixer.

    Is everything in the chain (PC, A10, mixer, speakers) connected to the same power outlet?
     
  15. James Cook

    James Cook Forum Member

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    30
    Yes they are all plugged into the same power bar
     
  16. Ricky Woofer

    Ricky Woofer Account Suspended

    Messages:
    1,056
    Try switching them into different ones. On a other socket preferably
     
  17. Real_Blackroom

    Real_Blackroom Forum Member

    Messages:
    91
    Common issue on a pc, try lifting the power cords ground and see if that fixes it. Has always been the problem for me. The mac is ungrounded and therefore don't have the same issue.