Boss ODB-3 Owner's Manual page 3

FEATURES
The ODB-3 overdrive unit + designed specifically for electric bass guitar + creates solid,
chest-resonating distortion!
Using the BALANCE Knob, you can adjust the balance between the Dry and Overdrive
sounds. This capability gives you complete control of your sound, from soft and warm to
hard and bright.
A 2-band equalizer allows you to control bass and treble frequencies independently.
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