User Manual
3
Instructions
1.  Disconnect, turn off, and remove the power cords of all equipment except for 
one piece – such as the mixer.
2.  Connect one piece of equipment at a time, making audio connections rst, 
then plug in the power cord, and turn on the power. Listen for noise.
3.  Continue this process until you have identied the piece of equipment 
causing the noise.
4.  Plug in the Humbuster between this piece of equipment and the rest of the 
system.
• Example#1—If you hear hum and buzz when plugging a guitar into a guitar 
amp: Plug a guitar into the input of the Humbuster, and connect the output of 
the Humbuster to a guitar amplier.








