User Manual
2
Thank you for choosing Kopul.
The Humbuster features inputs and outputs for both 1/4˝ and XLR plugs that can 
be used in any combination (see diagrams on page 5). It automatically converts 
unbalanced signals to balanced signals and vice versa. This is advantageous 
when using a long length of unbalanced cable, which can pick up interference, 
by converting it to a balanced signal before it reaches the mixer input. The 
Humbuster can also be used as a DI box to connect the unbalanced output of 
a musical instrument directly to a mixing console’s balanced input.
Ideal for studio, home, or stage use, the Humbuster is designed with high-quality 
internal components and gold-plated XLR connectors for superb noise reduction 
and awless signal transfer.








