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JJ Preamp by Quartermods - DIY bass preamp Demo

Discussion in 'Pickups & Electronics [BG]' started by Joel951, Oct 27, 2013.

  1. Joel951


    Oct 27, 2011
    Here's a demo of our DIY preamp. We call it JJ preamp. It is a 3band onboard preamp with 3 switches.


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