Home › Forums › Products › Stompboxes › Buzzing, hissing › Reply To: Buzzing, hissing June 16, 2011 at 9:35 pm #122297 nickroseModeratorEventide Staff You may well get get buzzing when the USB is plugged in if this causes a ground loop. No instant solution – ground loops have to be cured on a one-by-one basis. In this case, running your Mac with the charger disconnected might do it.
