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Ibanez BTB400/405 preamp issues?

Discussion in 'Basses [BG]' started by fourstringbliss, May 6, 2019.

  1. fourstringbliss

    fourstringbliss Supporting Member

    Oct 5, 2003
    Puyallup, WA
    I just got a BTB405QM in trade for a BTB400QM. Both basses have issues with the mid-frequency pot. The one I've got now has a super weird warble about half-way through the frequency pot rotation and also volume differences.

    Is this maybe a dirty pot issue? I'm probably replacing the preamp at some point, but would like to use it in the mean time.

    Do I need Deoxit, or can I use another brand?

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