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Question about Basslines QP Jazz in Geddy Lee

Discussion in 'Pickups & Electronics [BG]' started by Loki182, Dec 12, 2012.


  1. Loki182

    Loki182 Soundtrack '96 Supporting Member

    May 13, 2009
    Columbus Ohio
    I had a SD Bassline Quarter Pound Pickup installed in my Geddy Lee in the neck position. The stock pickup is still in the bridge pickup location. When I roll both volume pots full up and the tone full up, it sounds like playing through a cardboard box. Absolutely no bottom end and quiet. Yet, when roll either the neck or the bridge back just the tinest bit, there is a massive increase in volume output and the low end returns. Is there a wiring issue happening here? I used to run both volume pots full on when both were stock pickups with no problem? I haven't yet looked at how the tech wired it as i was waiting to get some feedback from here. Thanks.
     
  2. JimmyM

    JimmyM

    Apr 11, 2005
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps
    The QP is a MUCH louder pickup than the stockers, and it does not work and play very well with others. I used to use them in my P Lyte, and the only bridge pickup out of the 3 I tried that worked with it was a QP J pickup.
     
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  4. Loki182

    Loki182 Soundtrack '96 Supporting Member

    May 13, 2009
    Columbus Ohio
    Interesting, do you suppose a qp bridge pickup would mediate the problem?
     
  5. JimmyM

    JimmyM

    Apr 11, 2005
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps
  6. testing1two

    testing1two Supporting Member

    Feb 25, 2009
    Southern California
    Try reversing the wires on one of the pickups. It sounds like they are out of phase.
     
  7. Andyman001

    Andyman001 Supporting Member Supporting Member

    Feb 11, 2010
    Long Beach, CA
    Phase issue perhaps?
     
  8. JimmyM

    JimmyM

    Apr 11, 2005
    Apopka, FL
    Disclosures:
    Endorsing: Ampeg Amps
    That could be as well, but judging from my experience with QP's, they just don't get along with other pickups. Still, it's a lot cheaper to try reversing phase on one pickup than to buy another one ;)
     
  9. NYCbassist

    NYCbassist Supporting Member

    My guess is replacement Pots are in order to match up to the QP better.
     
  10. Loki182

    Loki182 Soundtrack '96 Supporting Member

    May 13, 2009
    Columbus Ohio

    This was my inital thought, i'll try this first.

    if it isn't phasing, what do you recomend for replacement pots?
     
  11. Bobster

    Bobster

    Mar 27, 2006
    Austin, TX
    That definitely sounds like a phase issue.

    Best of luck

    Bob
     
  12. testing1two

    testing1two Supporting Member

    Feb 25, 2009
    Southern California
    I agree but it's usually a matter of the QP overpowering the other pickup. "No bottom end and quiet" are not in a QP's vocabulary. :D
     
  13. NYCbassist

    NYCbassist Supporting Member

    I was just thinking that because when you backed off a little bit the problem seemed to go away. So maybe there was too much range from that particular pot. The Phase thing actually makes more sense so try it first. Generally the QP's pair nicely with 500 K pots
     



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