Excessive Humbucker noise - EMI radiation???

Discussion in 'Guitars in General' started by Gallery, May 5, 2015.

  1. Gallery

    Gallery Supporting Member

    Messages:
    4,850
    Joined:
    Apr 16, 2013
    Location:
    Red Bank, NJ
    All of my guitars hum like crazy. I've confirmed it's not the amp. Something is putting off EMI radiations that is being picked up by the guitar pickups. We recently had the basement renovated. I assume it could be related to the house wiring (Not noise in the wiring because I use a Furman, but radiation from the wiring maybe?).

    Any help or suggestions on how to reduce this?

     
  2. TDJMB

    TDJMB Gold Supporting Member

    Messages:
    3,115
    Joined:
    Jul 25, 2005
    Location:
    East Coast
    I'm also interested in this although I just get buzz, not that pulsing. The pulsing makes me think dimmer. My buzzing guitars are quiet at my tech's place and at my friend's 150-year-old house. An expensive power conditioner and moving to different circuits had no effect.
     
  3. Staggerlee

    Staggerlee Member

    Messages:
    1,627
    Joined:
    Nov 14, 2012
    Location:
    Minnesota
    I get a lot of humbucker noise as well and I am in NYC, so it must be a tri-state or East Coast thing. Probably the space rays emanating from the Statue of Liberty. :bitch
     
  4. dazco

    dazco Member

    Messages:
    11,153
    Joined:
    Jul 25, 2003
    Did u try the guitar>cable>amp and nothing else? If not i would try that and if it works you probably have a ground loop. I find when i get that thing where it starts to hum more as you roll the volume down it's usually ground related. Maybe they didn't ground the mains when they remodeled.
     
  5. Gallery

    Gallery Supporting Member

    Messages:
    4,850
    Joined:
    Apr 16, 2013
    Location:
    Red Bank, NJ
    Yep that video is

    guitar >> lava cable >> amp >> Furman P-1800 PF

    So it can't be a ground loop. It is not the amp. It's most definitely the pickups reacting to some sort of electromagnetic waves.
     
  6. 8len8

    8len8 Member

    Messages:
    9,548
    Joined:
    Dec 25, 2010
    Location:
    Chicago
    If the noise changes as you move around in the room then it's likely EMI. You can line the control cavity of the guitar with foil and then ground it to help shield things.
     
  7. Gallery

    Gallery Supporting Member

    Messages:
    4,850
    Joined:
    Apr 16, 2013
    Location:
    Red Bank, NJ

    Yes the intensity definitely changes as I move around the room.
     
  8. tone?

    tone? Supporting Member

    Messages:
    4,522
    Joined:
    Nov 8, 2008
    Location:
    SF Bay Area California
    You can buy an EMF meter to check where it's coming from.
     
  9. MKB

    MKB Silver Supporting Member

    Messages:
    6,827
    Joined:
    Mar 11, 2009
    Try unplugging the wall warts in the power strip one by one while the noise is audible, and hopefully one of those might be the culprit. In fact I'd start with the supply for the Torpedo CAB, that unit draws a lot of current (lots of DSP in it) and a switching power supply for such a beast can make a lot of noise.

    This may seem redundant, but eliminating noise sources can be difficult, with lots of trial and error, and the cures may sometimes seem counterintuitive. I have seen unbearable sound issues caused by the most trivial of things.
     
  10. Gallery

    Gallery Supporting Member

    Messages:
    4,850
    Joined:
    Apr 16, 2013
    Location:
    Red Bank, NJ

    Yep did that. No dice.
     

Share This Page