Bypass Mode; Tuner Mode; Tone Library (Knob 1); Effects Library (Knob 2) - DigiTech BP355 Owner's Manual

Bypass Mode

The BP355 presets can be bypassed via an analog bypass circuit for a clean, unprocessed bass sig-
nal. To bypass the BP355, press the Up and Down Footswitches simultaneously. The Display
reads Bypass indicating the preset is bypassed. Press any footswitch to exit Bypass and return
the BP355 to the last preset used.

Tuner Mode

The Tuner in the BP355 allows you to quickly tune or check the tuning on your bass. Enter Tuner
mode by pressing and holding the Up and Down Footswitches simultaneously for 2 seconds.
The Display briefly shows TunER indicating that you are in Tuner mode. To begin tuning, play
a note on your bass (a harmonic at the 12th fret usually works best). The Display shows the
note being played. The Matrix LEDs indicate whether you are sharp or flat. The top 5 red LEDs
indicate the note is sharp and should be tuned down. The bottom 5 red LEDs indicate the note
is flat and should be tuned up. The center green LED indicates the note is in tune. The output is
muted in Tuner mode. The Expression Pedal controls the bass volume while tuning. Exit tuner
mode by pressing any Footswitch.
Display shows
note played
Top LEDs indicate
note is sharp
Green LED indicates
note is in tune
Bottom LEDs indicate
note is flat
In Tuner mode, you can change your tuning reference. The default factory setting is A=440 Hz
(displayed as A=440). Rotating Knob 1 selects alternate dropped tunings and tuning references.
 
, and tuning references A=427 - A=453. The display
Alternate tunings are A = A , A = G, A = G
window briefly flashes the current tuning reference.

Tone Library (Knob 1)

In Performance mode, this knob selects a variety of genre-based amp tone defaults ranging from
Blues to Metal to Country. Behind the scenes, the Fretless/Wah, Compressor, Distortion, Amp/
Cabinet model, EQ, and Noise Gate are configured to create a specified tone with a single
click of this knob. You can further refine the sound by editing the preset (see Editing/Creat-
ing Presets on page 11). 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 (Knob 2)

In Performance mode, this knob selects a variety of post-amplifier model effect chains (Chorus,
Chorus + Delay, Delay + Reverb, etc.). You can further refine the sound by editing the preset
(see Editing/Creating Presets on page 11). Changing between different Effects Library defaults
does not change the Fretless/Wah, Compressor, Distortion, Amp/Cabinet model, EQ, and Noise
Gate settings, letting you experiment with different effect chains quickly in the context of the
current amp tone.

Effects Level (Knob 3)

In Performance mode, this knob 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 turning this knob
clockwise increases the level of these effects and turning it counter-clockwise decreases the
level of these effects.

Amp Gain (Knob 4)

This knob adjusts the Gain (distortion) for the selected Amp model (not available for Direct).

Amp Level (Knob 5)

This knob adjusts the Level (volume) of the selected Amp model.
2