Balance on internal speakers is inaccurate

Discussion in 'MacBook Pro' started by SonicBoom1981, May 21, 2010.

  1. SonicBoom1981 macrumors regular

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    May 9, 2010
    #1
    Both my 15" MacBook Pro (i5) and my mum's last year 15" C2D ones have what seems to be an inaccurate balance with the internal speakers. The right hand speakers appear to be stronger.

    Anyone else noticed this? It's not the end of the world, as the balance can be changed, but you'd think at 50% left 50% right that the volume would be the same per speaker...
     
  2. Hellhammer Moderator

    Hellhammer

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    #2
    System Preferences -> Sound -> Sound out -> Balance
     
  3. SonicBoom1981 thread starter macrumors regular

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    May 9, 2010
    #3
    Did you actually read my post? :)

    I'll try and explain in more detail. On both computers mentioned above, when the balance slider is exactly in the middle, the right speaker sounds stronger.
     
  4. Hellhammer Moderator

    Hellhammer

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    #4
    I read the first paragraph :p Maybe there is something blocking the left-hand-side speaker or something. Shouldn't be an issue as you can change the balance :)
     
  5. SonicBoom1981 thread starter macrumors regular

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    #5
    I just think it's weird that it is the same issue on both MBPs. I know it's not an issue to change it under System Prefs....
     
  6. Hellhammer Moderator

    Hellhammer

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    #6
    [​IMG]

    [​IMG]

    Looks like there is only one speaker + subwoofer so it ain't a surprise that sounds comes more from the right ;)
     
  7. SonicBoom1981 thread starter macrumors regular

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  8. Hellhammer Moderator

    Hellhammer

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    #8
    Not according to iFixit who has taken MBP apart. They only speak about ONE speaker and subwoofer (which are connected as in pic #2). I'm not sure but it could be right as the sound is louder from other side...
     
  9. diablo2112 macrumors 6502

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    Apr 16, 2010
    #9
    Not true. The second speaker is mounted directly on the logic board. Here's the pic.
     

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  10. Hellhammer Moderator

    Hellhammer

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    #10
    Ahh, okay, thanks! Just couldn't see it when browsed through the teardown :eek:

    Anyway, as it's louder from the right, maybe the SuperDrive is somehow "blocking" the sound?
     
  11. SonicBoom1981 thread starter macrumors regular

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    May 9, 2010
    #11
    I remember an iBook G4 I took apart had two speakers, so i'd have been surprised if this MPB didn't.
     
  12. avediswolf macrumors regular

    avediswolf

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    Jul 23, 2008
    Location:
    Ohio
    #12
    I've noticed the same on my 15" i7.
    I just adjusted the balance as everything else was perfect.
     

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