Boss Audio Systems ME-50B User Manual

fig.0150

You can make the setting that determines whether the ME-
50B’s pedal functions as a volume pedal or as an expression 
pedal. In addition, when using it as an expression pedal, you 
can use it to control one of the special pedal effects that you 
select.

When using the expression pedal as a volume pedal, press 
the expression pedal all the way forward and then give it a 
stronger push, the PEDAL MODE indicator goes off.

fig.0160

The volume decreases as the pedal's toe is raised, and 
increases when the pedal is pressed down.

When using the pedal as an expression pedal, press the 
expression pedal all the way forward and then give it a 
stronger push, the PEDAL MODE indicator lights up.

fig.0170

You can select one of the following effects with the 
expression pedal.

The effect will function as a pedal wah.

This completely original effect offers enhancements on the 
characteristic resonances produced by analog synth filters. 

Using the effect in combination with the DRIVE/SYNTH 
TYPE set to “SAW LEAD” or “SQUARE” makes them even 
more effective.

Allows the pitch to be raised up to one octave above the 
original bass sound.

Allows the pitch to be lowered up to one octave below the 
original bass sound.

You can hold the sounds played from the bass. This effect 
allows you to hold low notes while playing melodies in the 
upper registers.

A kick drum sound is played when you press the pedal. This 
is a useful feature you can use as a guide rhythm, for 
example in bass solos, or instead of a metronome during 
practice.

PEDAL MODE indicator

Strongly pressing

Not Lit

Strongly pressing

Lit