EHX Metaphors hum

Discussion in 'Effects [BG]' started by maturanesa, Dec 7, 2013.


  1. maturanesa

    maturanesa

    Joined:
    Feb 6, 2010
    Location:
    Buenos Aires, Argentina
    Im using this pedal and it makes hum. I dont know if its the electrical system in the room, the adapter(no batteries) or just the pedal. Its very rare, when i turn up the volume of the pedal the signal increases but the noise does not. The noise dissapear when i connect the bass directly. Its a noise like "shhhhhhhh". Its unusable in this condition. I dont know what to do.

    thanx!
  2. bongomania

    bongomania Gold Supporting Member

    Joined:
    Oct 17, 2005
    Location:
    PDX, OR
    Disclosures:
    owner, OVNIFX and OVNILabs
    It's a crappy pedal, sell it pronto.
  3. davedblyoo

    davedblyoo "All the mayhem and none of the sticky mess." Supporting Member

    Joined:
    Nov 15, 2012
    Location:
    Augusta, GA
    It might be your power source. Or it might just be the pedal. I haven't used any EH products in a long, LONG time, but had a few of them come through my hands. All of them added noise to my signal, if I recall correctly. If you can, try your pedal with a battery and see if that helps.
  4. Wardevil

    Wardevil

    Joined:
    Aug 18, 2011
    Location:
    Belgium
    It's an awful pedal indeed, i got rid of mine pretty fast. But if it works for you thats great.

    As to answer your question, firstly try the pedal with just battery power. If the hiss stops the problem probably lies with the power supply and you should either get a new power supply or check if there's a ground loop. If the hiss just continues it's the pedal and i'm not sure if you could do much about it.
  5. Bassmike62

    Bassmike62

    Joined:
    Oct 4, 2009
    Location:
    Somewhere Northwest of Montreal, CAN
    + 1
  6. maturanesa

    maturanesa

    Joined:
    Feb 6, 2010
    Location:
    Buenos Aires, Argentina
    it have just the adaptor, no batteries
  7. Wardevil

    Wardevil

    Joined:
    Aug 18, 2011
    Location:
    Belgium
    I completely forgot about that, my apologies.
    Maybe you can try a different power supply? See if that changes anything.

    And if you bought it at a local music store you could possibly go there and ask them for some help. They might be able to help or even give you a new one if it's a factory error.
  8. kohntarkosz

    kohntarkosz

    Joined:
    Oct 29, 2013
    Location:
    Edinburgh - Scotland
    I think that it is a general design flaw in the pedal. People reported this when it first came out.

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