DigiTech BP-90, Owner'S Manual

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Tone Library Button
You can press this button at any time (except in Bypass or Tuner mode) to access the Tone Library,
and then use the Value Up/Down buttons to select from a variety of genre-based amp tone
defaults ranging from Blues to Metal to Country. Behind the scenes, the Fretless/Wah, Compres-
sor, Amp/Distortion, and EQ are configured to create a specified tone. You can further refine the
sound by editing the preset (see Editing/Creating Presets on page 16). Changing between different
Tone Library defaults does not change the Chorus/FX, Delay or Reverb, letting you experiment
with different amp styles quickly in the context of the current effect chain.
Effects Library Button
You can press this button at any time (except in Bypass or Tuner mode) to access the Effects Li-
brary and then use the Value Up/Down buttons to select from a variety of post-amplifier model
effect chains (Chorus, Delay, Delay + Reverb, etc.). You can further refine the sound by
editing the preset (see Editing/Creating Presets on page 16). Changing between different Effects Li-
brary defaults does not change the Compressor, Distortion, Amp/Cabinet model, and EQ settings,
letting you experiment with different effect chains quickly in the context of the current amp tone.
Effects Level Button
You can press this button at any time (except in Bypass or Tuner mode) to access the Effects Level.
This button changes the relative level of the post-amp effects (Chorus/FX, Delay, and Reverb). This
can be thought of as an effects mix control, where increasing this button’s value increases the level
of these effects and decreasing its value decreases the level of these effects.
Master Level Button
Press this button and use the Value Up/Down buttons to set the overall output level of the BP90.