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strange "frequency hump" on pick ups

Discussion in 'Pickups & Electronics [BG]' started by clive shakedown, Mar 15, 2014.


  1. clive shakedown

    clive shakedown

    Dec 6, 2013
    U.K.
    Hi guys and girls.

    I have just "reinstated" an early 80's Westone bass...been in bits for years.

    it has a single humbucker, volume and tone, like a p bass - on connecting to an amp (any amp) the volume is quite low on the first fret on the E string, a bit louder on the second fret (same string) and gets progressively louder as you get towards the 6th fret, where it will stay at a constant volume all the way up the neck.
    the effect is less noticeable on the other strings but still there.
    any ideas as to what is going on?

    Cheers.
     
  2. AlarmClock314

    AlarmClock314

    Mar 26, 2007
    Southern WI
    Do you get the same effect when you play your bass acoustically? (Just want to make sure it's an electronic issue and not a setup issue.)
     
  3. clive shakedown

    clive shakedown

    Dec 6, 2013
    U.K.
    Hi pK, no, its just when it's plugged into an amp.
     
  4. RobbieK

    RobbieK

    Jun 14, 2003
    Possibly a speaker and/or room resonance. Try her in some different amps and locations...

    Did you put new strings on? old strings can sometimes develop wolf-tones and dead spots...
     
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  6. AlarmClock314

    AlarmClock314

    Mar 26, 2007
    Southern WI
    +1
     
  7. clive shakedown

    clive shakedown

    Dec 6, 2013
    U.K.
    Ok robbie, will give it a try.