GK MB112 Problem - No Sound

Discussion in 'Amps, Mics & Pickups [DB]' started by sean_on_bass, Jul 16, 2017.

  1. sean_on_bass


    Dec 29, 2005
    Wanted to see if anyone else has had this issue and fixed it. I'll call GK tomorrow to see what they think.

    Showed up for a session yesterday, plugged it, turned on the amp and the little status light goes from red to purple/pink. Usually goes red then to blue when ready to play. Under the purple/pink status, no sound is coming out of the amp and there didn't seem to be anything i could do to fix it.

    At this point my only fix is to try a different power cable. Hoping the amp isn't dead, but it may be. I'm thinking the cuplrit was leaving in a hot car all day(like real hot, likely got to 110 degrees in the car) Anyone had this happen and fixed the issue?
  2. notabene


    Sep 20, 2010
    SF Bay area
    isn't there a second button on the back that disconnects the speaker? If so, it could have been accidentally pressed. I don't have a GK, but have (rarely) played through one, so I may be misremembering.
    HateyMcAmp likes this.
  3. sean_on_bass


    Dec 29, 2005
    Not on this model unfortunately.
  4. Alain Bass

    Alain Bass

    Jun 6, 2004
    Paris France
    You could try to plug and unplug a jack on all the jacks plugs.
    I had a similar problem with a GK MB 150
    and it came from the Effects loop plug that cuts the sound.
    Pluging and unpluging a jack in that plug make my sound coming back.
    It was a false electrical contact that cuts the sound.