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Hum from VT Bass Deluxe FX Loop

Discussion in 'Effects [BG]' started by Sgt_Pappar, Feb 8, 2014.


  1. Sgt_Pappar

    Sgt_Pappar

    Feb 7, 2014
    Hello everyone,

    I recently bought a VT Bass Deluxe to add some tonal options to my sound.

    The pedal chain goes like this:

    Korg Tuner --> Tech21 Red Ripper --> Jam Dynassor Compressor --> VT Bass --> FX Send --> EBS Tremolo --> TC Flashback --> TC Hall of Fame --> FX Return --> TC BG500

    All the pedals are powered by a Voodoo Lab Power Pedal 2. The current draw is 100mA or less for each pedal.

    The problem is that when I activate the FX Loop there is a noticeable hum coming from the speaker. :confused:

    If I put the effects after the VT Bass (like this: Korg Tuner --> Tech21 Red Ripper --> Jam Dynassor Compressor --> VT Bass --> EBS Tremolo --> TC Flashback --> TC Hall of Fame --> TC BG500) the hum is gone and everything is quiet.

    If I stop power supplying the pedals in the loop then everything is quiet again (the sound goes through as they are true bypass pedals).

    As I would like to send my signal to the PA from the VT Bass DI, I need those modulation pedals in the FX Loop without the annoying hum.

    Any suggestions on how to get rid of it? Any help would be highly appreciated. :help:
     
  2. alec

    alec

    Feb 13, 2000
    Perth, Australia
    What if you power those pedals from batteries?
     
  3. Sgt_Pappar

    Sgt_Pappar

    Feb 7, 2014
    I tried everything yesterday and I noticed that when the jack cables linking the pedals of the loop were far from the Voodoo Power Pedal the hum disappeared. In the configuration of my pedaltrain, 2 of the jack cables of the loop pedals (2 of the loop pedals also) are right above the Voodoo Power Pedal. It must be a "magnetic field thing" which creates the hum when the FX Loop is on, or something like that.

    As I don't have enough space on my pedalboard to reconfigure the pedals, is there a simple way to isolate the Voodoo Power Pedal (which is mounted under the Pedaltrain) from the jack cables?