Boss Audio Systems ME-50B User Manual

Owner’s Manual

Thank you, and congratulations on your choice of the BOSS ME-50B Bass Multiple Effects.

Before using this unit, carefully read the sections entitled:

“USING THE UNIT SAFELY” (page 2–3)

and

“IMPORTANT NOTES” (page 4)

These sections provide important information concerning the proper operation of the unit. Additionally, in order to
feel assured that you have gained a good grasp of every feature provided by your new unit, owner’s manual should
be read in its entirety. The manual should be saved and kept on hand as a convenient reference.

Main features

Simple Operation—Works Like a
Compact Effects Processor

Each effect is controlled with a dedicated knob.
Intuitive operation, similar to that of compact effects
processors, lets you make changes to tones directly.

High-Quality Sounds Through COSM

With high-quality effects like Compressor/Limiter and
Overdrive/Distortion, which make full use of COSM
technology, you can perform with a variety of powerful
effects, from classic vintage sounds to new and original
sounds.

Multi-Function Expression Pedal

The ME-50B is equipped with an expression pedal that
gives you control over six different specialized pedal
effects. It can also be switched for use as a volume
pedal.

Memory Function

You can store up to 24 original tones you have created.
You can also use the pedals in “Memory mode” to call
up stored tones instantly.

AUX IN Jack

The AUX IN jack makes it easy to practice along with
CDs, MDs, and other input.

Battery-Powered Operation

The ME-50B can be powered in two ways, with (6) AA
batteries or by using the AC adaptor (optional).

COSM (Composite Object Sound Modeling)

Composite Object Sound Modeling (COSM) is Roland’s
innovative and powerful sound modeling technology.
COSM analyzes the many factors that make up the
original sound, such as the electrical and physical
characteristics of the original, and then produces a
digital model that can reproduce the same sound.