Output differences

Discussion in 'Pickups & Electronics [BG]' started by Red Cell, Sep 1, 2013.


  1. Red Cell

    Red Cell

    Joined:
    Jan 31, 2004
    Media:
    12
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    Location:
    Springfield, MO
    Long ago player getting back into bass but I have a question for the gurus out there.

    The basses I own are:

    Peavey Fury IV (newer model stock pickups and preamp)
    Warwick Rockbass Vampyre (MEC Pickups and preamp)
    Conklin GT4 (Bartolini pickups and preamp)

    The issue I am having is that the Peavey is about twice as loud into the amp and processor as the other 2. I have to back off the volume quite a ways to get it to be even with the other basses. I popped the back of all 3 basses to look at the preamp modules and it appears that none of them have any sort of level adjustment. Anyone know why this would be such a difference?

    These are the basses:


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  2. line6man

    line6man

    Joined:
    Jun 20, 2008
    Location:
    Close to Los Angeles, CA
    See if there is an internal gain trim pot on the preamp that is set too high.
  3. Red Cell

    Red Cell

    Joined:
    Jan 31, 2004
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    That is actually the first thing I looked for and no luck there. It's a sealed unit.
  4. Jensby design

    Jensby design

    Joined:
    May 22, 2008
    Location:
    Hastings, NE
    Adjust pickup height.
  5. Red Cell

    Red Cell

    Joined:
    Jan 31, 2004
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    Springfield, MO
    Tried and no major difference. The Peavey is bottomed out as low as it will go and the other 2 are raised up where they should be and still the Peavey is a boomer. I am wondering if the preamp in the Peavey is just that hot.
  6. Munjibunga

    Munjibunga Total Hyper-Elite Member Gold Supporting Member

    Joined:
    May 6, 2000
    Location:
    Groom Lake, NV
    Disclosures:
    Independent Contractor to Bass San Diego
    Some preamps are hotter than others. The ones in my NYC Sadowskys are really hot.
  7. Red Cell

    Red Cell

    Joined:
    Jan 31, 2004
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    That's kinda what I was thinking. I went through the Conklin last night and there was a loose wire but it didn't make a difference.
  8. uOpt

    uOpt Supporting Member

    Joined:
    Jul 21, 2008
    Location:
    Boston, MA, USA
    You could just put a trimmer into the cavity and wire it like a volume pot. Then leave it at a suitable setting.

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