VBA 400 problem , or not

Discussion in 'Amps [BG]' started by geddyfan, Feb 7, 2014.


  1. geddyfan

    geddyfan Supporting Member

    Joined:
    Oct 25, 2001
    Location:
    St Charles County Missouri or
    Mine makes a noticeable humming noise when the gain is up is that normal ?
     
  2. KablesP

    KablesP

    Joined:
    Oct 29, 2013
    Generally, with increased gain comes increased hum. Unless its really really loud, it sounds normal to me. Are you using single coil pickups? Fluorescent lights don't help either.
     
  3. Mr. Foxen

    Mr. Foxen

    Joined:
    Jul 24, 2009
    Location:
    Bristol, UK
    Disclosures:
    Amp tinkerer at Ampstack
    Amp should hum on its own with nothing plugged in. Plenty do anyway, because its cheaper leaving it like that than making it not do it.
     

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