Spark amp HUM



  • I am having the humming issue and the guitar is not putting out any sound either.



  • @stevegurgon i updated the firmware on Mac.. i am still getting the buzz/Hum . NO Guitar sound is coming out of the amp i have used 4 different cables and 2 different guitars. Still no sound for guitar out of amp. The buzzing/Humming gets louder as you change the amp presets. If you hold your fingers on the power switch that will deaden the hum/buz



  • @stevegurgon Unfortunately it sounds as if you need to request a replacement amp through the Contact Support link at the top of this page.



  • @stevegurgon said in Spark amp HUM:

    I am having the humming issue and the guitar is not putting out any sound either.

    I received a replacement power supply unit today. Three pins, grounded. All hums seem to be gone. :-)
    Open a ticket with the Support and ask for a replacement, grounded PSU.



  • @drbaroni said in Spark amp HUM:

    @stevegurgon said in Spark amp HUM:

    I am having the humming issue and the guitar is not putting out any sound either.

    I received a replacement power supply unit today. Three pins, grounded. All hums seem to be gone. :-)
    Open a ticket with the Support and ask for a replacement, grounded PSU.

    dopo quanto tempo dalla richiesta di assistenza ti è arrivato l'alimentatore sostitutivo?



  • @drbaroni it’s not the lights, the usual suspects. My house is old with limited plug points, so running a TV,screen, various media devices etc means an undesirable amount of extensions, makes for a noisy environment. Not an issue with other SS amps though



  • @samueleonline

    Ero già in contatto con il supporto per via di un problema con il firmware, e già che c'ero gli ho menzionato il problema dello "humming". Non ho nemmeno avuto bisogno di richiederlo, mi hanno detto che me lo avrebbero mandato ed é arrivato in 3 giorni. Dalla Cina. :-)



  • @drbaroni ok grz



  • @stinger0625 Well after playing around with and getting the volume up a little bit have the hum on various amp models most prevelent on the Jumbo Acoustic and I was playing my Taylor through, had to turn the noise gate all the way up to get rid of it. Just request a grounded power supply.



  • @dean-miniken New power supply arrived today (it's only been 5 days since I raised the case where they offered a new power supply) and very happy to report, NO HUM! So it's an easy fix and support seem to be on top of it. If you have "the Hum" don't hesitate in creating a case with support.



  • @dean-miniken said in Spark amp HUM:

    @dean-miniken New power supply arrived today (it's only been 5 days since I raised the case where they offered a new power supply) and very happy to report, NO HUM! So it's an easy fix and support seem to be on top of it. If you have "the Hum" don't hesitate in creating a case with support.

    Still waiting for an update for my replacement. Ticket submitted 10 days ago. Nothing from DHL either.



  • I’ve found that if I turn up the threshold on the Gate it eliminates much of the hum/buzz. I still hope a better solution is found with either a firmware update or sending out new ac plugs to fix the issue permanently.



  • I had the annoying hum when I first got the amp. Could not play it because of the hum.
    Because of what I read on this forum and others I contacted Positive Grid Support and asked them for a new power supply.
    I just got it in today 9/4/2020 and the hum is completely gone now. 100% playable now.

    Also the new power supply looks and is completely different from the one that originally came with the Spark.
    The model #'s are different. The weight is different.
    New Model #: YDS65-1902640
    Model # that came with the amp: MSAZ2500IC19.0

    Hope this information can help others resolve their issues with the annoying hum.