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pickup problem

Discussion in 'Pickups & Electronics [BG]' started by rougeporn, Oct 17, 2005.

  1. Hi, Ive just installed dimarzio quater pounders in my yamaha bb1100s. and im very happy with the sound, however when both the pickups are used at the same time i get a significant volume drop? thou when the pickups are used separately the vol is higher and about the same for each pickup. Does anyone know a possible reason for this. The pups ( PJ config) are wired into a master vol, master tone and a selector switch. there is also a 3 band eq and passive/active switch. would wiring vol vol tone over come this. any advice would be great
  2. this configuration should work just fine...it sounds like a phasing problem...try swapping the polarity of your j-pickup (swap the two wires).

    when the two pickups are out of phase, their signals can actually cancel each other out.
  3. have just tried that, no effect whatsoever, was wondering if ive not put the p pickup in properly? maybe got the 2 halves in the wrong way?
  4. Moo

    Moo Banned

    Dec 14, 2002
    Oakland, CA
    Wired correctly there will be a mild yet annoying drop in volume from wiring two pickups in parallel. When you swapped the polarity if you found one way was louder that's the right way.

    This is more obvious in different pickups than others. The only way to remove it is to have an active preamp that buffers the signals before blending.