Boss ME-50B Owner's Manual
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Boss ME-50B Owner's Manual

Boss owner's manual bass multiple effects me-50b
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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.
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.
Copyright © 2003 BOSS CORPORATION
All rights reserved. No part of this publication
may be reproduced in any form without the
written permission of BOSS CORPORATION.
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).

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  • Page 1: Main Features

    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...

  • Page 2: Using The Unit Safely

    USING THE UNIT SAFELY Used for instructions intended to alert the user to the risk of death or severe injury should improperly. Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly.
  • Page 3 • In households with small children, an adult should provide supervision until the child is capable of following all the rules essential for the safe operation of the unit. • Protect the unit from strong impact. (Do not drop it!) •...

  • Page 4: Important Notes

    IMPORTANT NOTES In addition to the items listed under “USING THE UNIT SAFELY” on page 2–3, please read and observe the following: Power Supply: Use of Batteries • Do not connect this unit to same electrical outlet that is being used by an electrical appliance that is controlled by an inverter (such as a refrigerator, washing machine, microwave oven, or air conditioner), or that contains a motor.

  • Page 5: Table Of Contents

    Synchronized to the Performance Tempo... 26 Switching Banks... 27 Practicing Along with CDs and MDs (AUX IN)... 27 Appendices ... 28 Returning the ME-50B to Its Factory Settings (Factory Reset) ... 28 Adjusting the Expression Pedal ... 28 Troubleshooting ... 29 Specifications ...

  • Page 6: Playing Sounds

    (This may vary according to usage conditions.) Making the Connections The ME-50B is not equipped with any internal amplifier or speakers. To listen to sound with the ME-50B, connect it to a bass amp, stereo headphones, or other such sound equipment.

  • Page 7: Turning On The Power

    * If using the ME-50B with a CD or MD player, be sure to turn on the power to the connected device first. 1. ME-50B fig.0041...

  • Page 8: Using The Effects

    All product names mentioned in this document are trademarks or registered trademarks of their respective owners. Those companies are not affiliated with BOSS and have not licensed or authorized BOSS’s ME-50B. Their marks are used solely to identify the equipment whose sound is simulated by BOSS’s ME-50B.

  • Page 9: Compressor/Limiter

    COMPRESSOR/LIMITER fig.0110 COMPRESSOR/LIMITER indicator This comprises two effects, one that evens out the volume of the input signals to provide lengthy sustain (compressor), and one that prevents distortion by suppressing only the peaks in the sound (limiter). TYPE knob Turns off the compressor/limiter effect sound is bypassed.

  • Page 10: Filter/Tone

    Using the Effects FILTER/TONE fig.0120 FILTER / TONE indicator Pedal indicator FILTER / TONE pedal Included here are eleven different effects that alter the particular characteristics of the bass sound itself. You can select and use any one of these effects at a time. FILTER/TONE pedal The filter tone is alternately switched on and off each time you press the pedal.
  • Page 11 DEFRETTER This effect allows you to use a conventional bass to simulate a fretless bass. SENS/BOTTOM knob Adjusts the amount of defretter effect applied in response to the input sound. DEPTH/TONE knob Adjusts the tone. Turn the knob to the left for a milder sound, or to the right for a sharper sound.

  • Page 12: Drive/Synth

    Using the Effects DRIVE/SYNTH fig.0130 DRIVE / SYNTH indicator Pedal indicator DRIVE / SYNTH pedal This distorts the sound, or create an effect like that of an analog synth. DRIVE/SYNTH pedal The DRIVE/SYNTH is alternately switched on and off each time you press the pedal.
  • Page 13 TONE/CUTOFF knob When (NATURAL–HI-BAND DRIVE) is selected Adjusts the tone. Turn the knob to the left for a milder sound or to the right for a sharper sound. When SYNTH (SAW LEAD–SQUARE) is selected Adjusts the frequency at which the harmonic components of the sound are cut (the cutoff frequency).

  • Page 14: Delay/Modulation

    The ME-50B comes equipped with eleven different delay and modulation effects. You can select and use any one of these effects at a time.
  • Page 15 ANALOG DLY/0-400 ms DLY/300-1400 ms DLY ANALOG DLY: This gives a mild analog delay sound. The delay time can be set within the range of 100 ms to 500 ms. 0-400 ms DLY: Delay sound of 0 to 400 ms delay time. 300-1400 ms DLY: Delay sound of 300 to 1400 ms delay time.

  • Page 16: Using The Hold Dly Function

    Using the Effects Using the HOLD DLY Function 1. Set the TYPE knob to HOLD DLY. The unit goes into recording standby and the pedal’s indicator flashes at a fixed interval. * After switching to HOLD DLY, you cannot perform any operation during the 2.8-second period before the unit switches to recording standby.

  • Page 17: Adding A Modulation Effect Synchronized To The Performance Tempo

    3. Hold down the pedal switch for at least two seconds to complete the tempo setting. The effect goes on, and instead of flashing, the pedal indicator will light. * The tempo may become confused momentarily when you go from Step 2 to Step 3. * If you move the TIME/RATE knob after finishing this setting, the delay time corresponding to the knob position takes effect.

  • Page 18: Pedal

    Using the Effects Pedal fig.0150 PEDAL MODE indicator 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.

  • Page 19: Using The Sound Hold Function

    Using the SOUND HOLD Function 1. Turn the knob to SOUND HOLD. 2. Firmly press down on the front end of the expression pedal so the PEDAL MODE indicator lights up. 3. Bring the expression pedal back all the way to switch to standby mode.

  • Page 20: Master

    A Note About Bypass The ME-50B allows you to switch between the state whereby the effects are applied and the completely dry state, devoid of all effects (bypass).

  • Page 21: Saving And Loading The Created Tones (Memory Mode)

    Memory Mode The mode in which the tone produced reflects the panel settings just as they are is called “Manual mode.” A dot appears in the display when the ME-50B is in Manual mode. fig.0240 ● When switching from Manual mode to Memory mode, press the No.

  • Page 22: Write Procedure

    Saving and Loading the Created Tones (Memory Mode) Write Procedure The “Write procedure” enables you to save the created tone settings using the panel knobs and pedals, MASTER section’s knob setting, and expression pedal settings to patches. * You can carry out the Write procedure in both Manual mode and Memory mode.

  • Page 23: Notes When Using Memory Mode

    If the Patch Does Not Change ● Is the ME-50B in Manual mode (p. 21)? ● Is the ME-50B in Patch Edit mode (p. 24)? ● Is the ME-50B in Tuner mode (p. 25)? Notes When Using Memory Mode • The settings for each patch are called up from internal memory in the Memory mode. Therefore, each knob's position and the patch settings may not match, when the patch is called up.

  • Page 24: Changing The Patch Settings (Patch Edit Mode)

    Saving and Loading the Created Tones (Memory Mode) Changing the Patch Settings (Patch Edit mode) Use the following procedure when editing the settings of a patch you have called up. fig.0320 1. Switch to the Patch whose settings you want to edit (p.

  • Page 25: Convenient Functions

    The new setting is stored upon exiting Tuner mode. If you turn off the power with the ME-50B still in Tuner mode, the changed reference pitch is not saved. 3. Play a single note on the string to be tuned; play the string open.

  • Page 26: Using The Foot Switch

    Convenient Functions Using the Foot Switch Switching the Compressor/ Limiter On and Off With a foot switch (the optional FS-5U) connected to the FOOT SW jack on the rear panel, you can use the foot switch to switch the compressor/limiter on and off. fig.0300 Set the polarity switch as shown below.

  • Page 27: Switching Banks

    AUX IN jack. * AUX IN is a stereo mini jack. fig.0370 Sound input to the AUX IN jack is mixed in the ME-50B with the bass sounds, a convenient feature when using headphones for home practice and other such situations.

  • Page 28: Appendices

    Appendices Returning the ME-50B to Its Factory Settings (Factory Reset) You can restore all of the ME-50B’s settings (24 patches and tuner reference pitch) to what they were at the time the unit was shipped from the factory. This is referred to as “Factory Reset.”...

  • Page 29: Troubleshooting

    Troubleshooting If there is no sound, or if it appears the ME-50B is not functioning correctly, first check the points below. If the following measures do not solve the problem, contact your dealer or the nearest Roland Service Center. No Sound/Volume is Low ●...

  • Page 30: Specifications

    Appendices Specifications ME-50B: Bass Multiple Effects ● AD Conversion 24 bit + AF method (*) ● DA Conversion 24 bit ● Sampling Frequency 44.1 kHz ● Patches 24 (user) ● Effects Compressor/Limiter Filter/Tone T. Wah Octave (Up/Down) Slow Gear Defretter...

  • Page 31: Patch List

    Patch List BANK NO. Sound using MID SHAPE, suitable for slapping play. Tube amp sound, good for rock'n roll. Touch wah sound for funk music. Mellow sound of a fretless bass. Good for use with a bridge pickup. Fuzz sound of 60’s. Spacy, analog synth bass sound.

  • Page 32: Factory Settings

    Factory Settings COMPRESSOR/LIMITER BANK NO. THRESHOLD / TYPE LEVEL SUSTAIN NATURAL NATURAL D-COMP NATURAL NATURAL 160D SOFT NATURAL D-COMP NATURAL LIMITER 160D HARD LIMITER NATURAL 160D SOFT 160D HARD NATURAL NATURAL NATURAL NATURAL 160D SOFT * The correspondence between the setting value and the actual knob position is shown on the following diagram. 50 60 360 Hz 260 Hz...
  • Page 33 DELAY/MODULATION TIME/ FEEDBACK/ E.LEVEL/ TYPE RATE DEPTH RESONANCE REVERB CHO+REVERB ANALOG DLY PHASER 300-1400 ms DLY 15 PHASER .TAP DLY PHASER CHO+DELAY FLANGER CHO+DELAY REVERB FLANGER 0-400 ms DLY Expression Pedal PEDAL MODE EXPRESSION VOLUME KICK DRUM VOLUME VOLUME -1 OCTAVE VOLUME KICK DRUM VOLUME...

  • Page 34: Blank Chart

    Blank Chart COMPRESSOR/LIMITER BANK NO. THRESHOLD / TYPE LEVEL SUSTAIN FILTER/TONE SENS/ DEPTH/ RESONANCE/ TYPE BOTTOM TONE E.LEVEL DRIVE/SYNTH DRIVE/ TONE/ D.LEVEL / TYPE E.LEVEL SENS CUTOFF RESONANCE...
  • Page 35 Blank Chart DELAY/MODULATION Expression Pedal MASTER NOISE TIME/ FEEDBACK/ E.LEVEL/ SUPPRESSOR TYPE PEDAL MODE EXPRESSION MID FREQ HIGH LEVEL RATE DEPTH RESONANCE...
  • Page 36 Blank Chart COMPRESSOR/LIMITER BANK NO. THRESHOLD / TYPE LEVEL SUSTAIN FILTER/TONE SENS/ DEPTH/ RESONANCE/ TYPE BOTTOM TONE E.LEVEL DRIVE/SYNTH DRIVE/ TONE/ D.LEVEL / TYPE E.LEVEL SENS CUTOFF RESONANCE...
  • Page 37 Blank Chart DELAY/MODULATION Expression Pedal MASTER NOISE TIME/ FEEDBACK/ E.LEVEL/ SUPPRESSOR TYPE PEDAL MODE EXPRESSION MID FREQ HIGH LEVEL RATE DEPTH RESONANCE...

  • Page 38: Index

    Index Numerics 0-400 ms DLY ... 15 +1 OCTAVE ... 18 -1 OCTAVE ... 18 160D HARD ... 9 160D SOFT ... 9 300-1400 ms DLY ... 15 ANALOG DLY ... 15 AUX IN ... 27 Bank (BANK) ... 21–22, 27 BASS DRIVER ...
  • Page 39 This product complies with the requirements of European Directive 89/336/EEC. FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 40 G6017377 **********...

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