DigiTech iPB-10 Owner's Manual page 60

Pedals – EQ Pedals – EQ
EQ
The iPB-10 is equipped with a 3 band semi-parametric EQ which helps shape your tone with Low, Mid, and High controls.
• 3 Band Semi-Parametric EQ
This EQ provides Low, Mid, and high tone shaping with adjustable
frequency and filter width. Use this EQ to fine tune your tone.
60