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Sound cancelling

Discussion in 'Pickups & Electronics [BG]' started by marlin bass, Feb 19, 2013.

  1. marlin bass

    marlin bass

    Joined:
    Feb 21, 2012
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    I recently fitted some new tonerider pickups to my p-j bass but now when I put the switch onto all pickups I lose volume, work fine individually! Should I scrap the switch and re-wire with a second volume so that the pickup loops are seperate from one another?

    Any suggestions!!

    Thanks Gaz!!
  2. Cadfael

    Cadfael

    Joined:
    Jan 4, 2013
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    Witgout having heard your bass I would say that a switch only makes hearable what is normal.

    The two single PUs are always a little bit louder than these two PUs in parallel mode.

    If they are MUCH louder when single, you might have made a mistake and they are out-of-phase? Switch the two J wires (not the P wires). Does it get louder or even more quiet in the middle position?

    If this makes it even worse, change the PU hights of one of the two PUs. The J a little bit more up or the P a little bit more down. It can happen that the hight of both PUs was adjusted so unlucky, that the middle position is not so loud (but this is a rare).

    To my mind, two seperate volumes (or a balance pot) make no difference to a switch.
  3. i_got_a_mohawk

    i_got_a_mohawk

    Joined:
    Feb 9, 2005
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    Sounds like it could be a phase issue as per Cadfael's post.
  4. marlin bass

    marlin bass

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    Feb 21, 2012
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    Hi all

    Have just been in the back of my bass and swapped the wires on the j PU and as it turns out hay presto its sounding better than ever!! Cheers for your advice!!

    Gaz

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