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.
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
High-Quality Sounds Through COSM
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.
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.
AUX IN Jack
The AUX IN jack makes it easy to practice along with
CDs, MDs, and other input.
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.
Battery-Powered Operation
The ME-50B can be powered in two ways, with (6) AA
batteries or by using the AC adaptor (optional).
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.
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107d
•
•
013 In households with small children, an adult
Never handle the AC adaptor body, or its output
should provide supervision until the child is
capable of following all the rules essential for the
safe operation of the unit.
plugs, with wet hands when plugging into, or
unplugging from, an outlet or this unit.
..........................................................................................................
108b
..........................................................................................................
014 Protect the unit from strong impact.
•
Before moving the unit, disconnect the AC
adaptor and all cords coming from external
devices.
•
(Do not drop it!)
..........................................................................................................
..........................................................................................................
109b
•
015 Do not force the unit’s power-supply cord to share
•
Before cleaning the unit, turn off the power and
unplug the AC adaptor from the outlet.
an outlet with an unreasonable number of other
devices. Be especially careful when using
..........................................................................................................
110b
extension cords—the total power used by all
devices you have connected to the extension
cord’s outlet must never exceed the power rating
(watts/amperes) for the extension cord. Excessive
loads can cause the insulation on the cord to heat
up and eventually melt through.
•
Whenever you suspect the possibility of lightning
in your area, disconnect the AC adaptor from the
outlet.
..........................................................................................................
•
111:ISfeulescetidonimproperly, batteries may explode or leak
..........................................................................................................
and cause damage or injury. In the interest of
safety, please read and observe the following
•
016 Before using the unit in a foreign country, consult
with your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” sheet.
1
2
• Carefully follow the installation instructions for
batteries, and make sure you observe the correct
polarity.
..........................................................................................................
•
019 Batteries must never be recharged, heated, taken
• Avoid using new batteries together with used
ones. In addition, avoid mixing different types
of batteries.
apart, or thrown into fire or water.
3
5
• Remove the batteries whenever the unit is to
remain unused for an extended period of time.
..........................................................................................................
• If a battery has leaked, use a soft piece of cloth
or paper towel to wipe all remnants of the
discharge from the battery compartment. Then
install new batteries. To avoid inflammation of
the skin, make sure that none of the battery
discharge gets onto your hands or skin. Exercise
the utmost caution so that none of the discharge
gets near your eyes. Immediately rinse the
affected area with running water if any of the
discharge has entered the eyes.
101b
•
The unit and the AC adaptor should be located so
their location or position does not interfere with
their proper ventilation.
..........................................................................................................
102d
•
Always grasp only the output plug or the body of
the AC adaptor when plugging into, or
unplugging from, this unit or an outlet.
6
• Never keep batteries together with metallic
objects such as ballpoint pens, necklaces,
hairpins, etc.
..........................................................................................................
103b
•
At regular intervals, you should unplug the AC
adaptor and clean it by using a dry cloth to wipe
all dust and other accumulations away from its
prongs. Also, disconnect the power plug from the
power outlet whenever the unit is to remain
unused for an extended period of time. Any
accumulation of dust between the power plug and
the power outlet can result in poor insulation and
lead to fire.
..........................................................................................................
112 Used batteries must be disposed of in compliance
•
with whatever regulations for their safe disposal
that may be observed in the region in which you
live.
..........................................................................................................
..........................................................................................................
•
104 Try to prevent cords and cables from becoming
entangled. Also, all cords and cables should be
placed so they are out of the reach of children.
..........................................................................................................
•
106 Never climb on top of, nor place heavy objects on
the unit.
..........................................................................................................
3
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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
Maintenance
301
• Do not connect this unit to same electrical outlet that is
4•01aFor everyday cleaning wipe the unit with a soft, dry cloth
or one that has been slightly dampened with water. To
remove stubborn dirt, use a cloth impregnated with a
mild, non-abrasive detergent. Afterwards, be sure to wipe
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. Depending on the way in which the electrical
appliance is used, power supply noise may cause this unit
to malfunction or may produce audible noise. If it is not
practical to use a separate electrical outlet, connect a
power supply noise filter between this unit and the
the unit thoroughly with a soft, dry cloth.
402
• Never use benzine, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.
electrical outlet.
302
Repairs and Data
• The AC adaptor will begin to generate heat after long
452
hours of consecutive use. This is normal, and is not a
• Please be aware that all data contained in the unit’s
cause for concern.
memory may be lost when the unit is sent for repairs.
Important data should always be written down on paper
(when possible). During repairs, due care is taken to avoid
the loss of data. However, in certain cases (such as when
circuitry related to memory itself is out of order), we
regret that it may not be possible to restore the data, and
Roland assumes no liability concerning such loss of data.
303a
• The use of an AC adaptor is recommended as the unit’s
power consumption is relatively high. Should you prefer
to use batteries, please use the alkaline type.
304a
• When installing or replacing batteries, always turn off the
power on this unit and disconnect any other devices you
may have connected. This way, you can prevent
malfunction and/or damage to speakers or other devices.
306b
Additional Precautions
• Batteries are supplied with the unit. The life of these
551
batteries may be limited, however, since their primary
• Please be aware that the contents of memory can be
purpose was to enable testing.
irretrievably lost as a result of a malfunction, or the
improper operation of the unit. To protect yourself against
the risk of loosing important data, we recommend that
307
• Before connecting this unit to other devices, turn off the
power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.
important data should always be written down on paper.
552
• Unfortunately, it may be impossible to restore the contents
of data that was stored in the unit’s memory once it has
been lost. BOSS/Roland Corporation assumes no liability
concerning such loss of data.
Placement
351
• Using the unit near power amplifiers (or other equipment
553
containing large power transformers) may induce hum.
To alleviate the problem, change the orientation of this
unit; or move it farther away from the source of inter-
• Use a reasonable amount of care when using the unit’s
buttons, sliders, or other controls; and when using its jacks
and connectors. Rough handling can lead to malfunctions.
ference.
554
352a
• Never strike or apply strong pressure to the display.
• This device may interfere with radio and television
556
• When connecting / disconnecting all cables, grasp the
reception. Do not use this device in the vicinity of such
connector itself—never pull on the cable. This way you
will avoid causing shorts, or damage to the cable’s
receivers.
352b
• Noise may be produced if wireless communications
internal elements.
devices, such as cell phones, are operated in the vicinity of
this unit. Such noise could occur when receiving or initi-
ating a call, or while conversing. Should you experience
such problems, you should relocate such wireless devices
so they are at a greater distance from this unit, or switch
558a
• To avoid disturbing your neighbors, try to keep the unit’s
volume at reasonable levels. You may prefer to use
headphones, so you do not need to be concerned about
those around you (especially when it is late at night).
559a
them off.
• When you need to transport the unit, package it in the box
354a
(including padding) that it came in, if possible. Otherwise,
• Do not expose the unit to direct sunlight, place it near
you will need to use equivalent packaging materials.
devices that radiate heat, leave it inside an enclosed
vehicle, or otherwise subject it to temperature extremes.
562
• Use a cable from Roland to make the connection. If using
Excessive heat can deform or discolor the unit.
some other make of connection cable, please note the
following precautions.
355b
• When moved from one location to another where the
temperature and/or humidity is very different, water
droplets (condensation) may form inside the unit. Damage
or malfunction may result if you attempt to use the unit in
this condition. Therefore, before using the unit, you must
allow it to stand for several hours, until the condensation
has completely evaporated.
• Some connection cables contain resistors. Do not use
cables that incorporate resistors for connecting to this
unit. The use of such cables can cause the sound level
to be extremely low, or impossible to hear. For infor-
mation on cable specifications, contact the manufac-
turer of the cable.
988
• Security Slot (
)
220
• All product names mentioned in this document are trade-
marks or registered trademarks of their respective owners.
4
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Contents
Saving and Loading the Created Tones
About the ꢀ.TAP DLY............................................... 23
Using the ꢀ.TAP DLY Function............................... 16
Adding a Delay
Adding an Effect
Adding a Modulation Effect
Returning the ME-50B
Conversions Used in This Manual
●
Words in square brackets [ ] indicate panel buttons or knobs.
(Example)
[WRITE]:
WRITE button
●
(p. **) indicates a reference page.
5
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Playing Sounds
Installing Batteries
Making the Connections
*
Batteries are supplied with the unit. The life of these batteries
may be limited, however, since their primary purpose was to
enable testing.
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.
Insert the included batteries as shown in figure, being careful
to orient the batteries correctly.
fig.0010
*
To prevent malfunction and/or damage to speakers or other
devices, always turn down the volume, and turn off the power
on all devices before making any connections.
fig.0020
Stereo
Headphones
Bass Guitar
AC Adaptor
(PSA series: optional)
CD/MD
Player, etc.
• When turning the unit upside-down, get a bunch of
newspapers or magazines, and place them under the
four corners or at both ends to prevent damage to the
buttons and controls. Also, you should try to orient the
unit so no buttons or controls get damaged.
Bass Amp
●
●
If there are batteries in the unit while an AC adaptor is
being used, normal operation will continue should the
line voltage be interrupted (power blackout or power
cord disconnection from the ME-50B).
• When turning the unit upside-down, handle with care to
avoid dropping it, or allowing it to fall or tip over.
• Make sure the “+” and “-” ends of the batteries are
oriented correctly.
To prevent the inadvertent disruption of power to your
unit (should the plug be pulled out accidentally), and to
avoid applying undue stress to the AC adaptor jack,
anchor the power cord using the cord hook, as shown in
the illustration.
• A “b” appears in the display when the batteries are
nearly worn out. When this occurs, replace with new
batteries.
fig.0040
• When replacing the batteries, use six AA type.
• Avoid using new batteries together with used ones. In
addition, avoid mixing different types of batteries. Doing
so can result in fluid leakage.
• Battery life can vary depending on battery type.
Continuous usage time under battery power is about 12
hours with alkaline batteries and about 3.5 hours with
carbon batteries.
●
●
When outputting monaurally, connect a cable only to the
OUTPUT L (MONO) jack.
(This may vary according to usage conditions.)
Do not use a cable containing a resistor to connect CD or
MD players to the AUX IN jack. If a cable incorporating
resistance is used, audio from CD and MD players may
become inaudible.
6
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Playing Sounds
If There Is No Sound/If the Volume is Low
Turning on the Power
Once the connections have been completed, turn on power to
your various devices in the order specified. By turning on
devices in the wrong order, you risk causing malfunction
and/or damage to speakers and other devices.
●
●
●
Are connections to other devices correctly made?
Check the connections once more.
Is the volume turned down?
Check the volume levels on any connected amp or mixer.
*
If using the ME-50B with a CD or MD player, be sure to turn
on the power to the connected device first.
Can you hear sound through the headphones when
headphones are connected?
1. ME-50B
fig.0041
If you can hear sounds, it may be that there is a short in
the cable used to connect the amp or other device, or
perhaps a mistake in an external device’s settings. Check
the connecting cables and external devices once more.
●
●
Has the level been lowered with the expression pedal?
Sounds are not output when the toe of the expression
pedal is in the raised position while the pedal is set to
2. Bass Amp /Stereo, Multitrack Recorder, Etc.
*
Turn up the volume on amps and other equipment only after
all connections are completed and the power for connected
devices is turned on.
In Tuner mode, the bypass sound is output, and the
expression pedal is used as a volume pedal.
*
This unit is equipped with a protection circuit. A brief interval
(several seconds) after power up is required before the unit will
operate normally.
When the expression pedal is used as a volume pedal,
sound output falls as you pull the pedal back, raising the
●
Is a cable containing a resistor being used to connect a
CD or MD player to the AUX IN jack?
Adjusting the Volume
Adjust the ME-50B’s volume with the MASTER LEVEL knob.
Using a cable containing a resistor may prevent sound
from CD and MD players from being audible.
fig.0050
Turning Off the Power
1. Turn down the volume of the ME-50B and any
connected device.
*
*
Raising the MASTER LEVEL knob too much may result in
sound distortion.
2. Turn off the power to Bass Amp / Stereo, Multitrack
Recorder, etc.
When the effects are all off, input and output are at the same
levels as when the MASTER LEVEL knob is at the center
position.
3. Turn the ME-50B’s power off.
*
The setting of the MASTER LEVEL knob is stored in memory
7
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Using the Effects
When the power is turned on, the FILTER/TONE, DRIVE/SYNTH, and DELAY/MODULATION are switched off. Also, the
expression pedal will function as volume pedal.
*
When the DELAY/MODULATION TYPE is set to HOLD DLY, the DELAY/MODULATION indicator goes on, the DELAY/MOD
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.
About the Effect Connection Sequence
The ME-50B automatically selects the optimum sequence for connecting the effects according to the effect settings.
fig.0060
OCTAVE UP /
SLOW GEAR /
DEFRETTER /
COMPRESSOR /
LIMITER
OCTAVE
DOWN
DELAY /
MODULATION
FOOT
VOLUME
8
Using the Effects
COMPRESSOR/LIMITER
fig.0110
THRESHOLD/SUSTAIN knob
COMPRESSOR/LIMITER indicator
Adjusts the depth of the effect.
When the TYPE is set to NATURAL, LIMITER, 160D SOFT,
or 160D HARD, this functions as the THRESHOLD knob,
which sets the level at which the limiter starts to take effect.
The more the knob is turned to the left (counterclockwise),
the lower the level at which the limiter effect is enabled.
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).
When the TYPE is set to D-COMP, the knob functions as a
SUSTAIN control, which adjusts how long sounds are
sustained. Turn the knob to the right (clockwise) to get
longer sustain times.
TYPE knob
LEVEL knob
This adjusts the level when the compressor/limiter is on. Use
this to balance the volume level so it is the same when the
compressor/limiter is switched on and off.
OFF
Turns off the compressor/limiter effect sound is
bypassed.
*
The COMPRESSOR/LIMITER indicator goes off when this is
set to OFF.
You can use a foot switch to switch the compressor/
limiter on and off. For more detailed information, refer
NATURAL
Provides natural-sounding performances with little
thinning of the sound, even when pushing the effect.
This is especially effective with slapping and hard
picking.
LIMITER
Prevents distortion by suppressing the input signal level
when it exceeds the set value.
160D SOFT
Models the dbx 160 set to a lower compression ratio.
160D HARD
Models the dbx 160 set to a high compression ratio.
D-COMP
Models the MXR DynaComp.
9
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Using the Effects
FILTER/TONE
fig.0120
T.WAH EDGE:
Gives a filter with a stronger effect.
FILTER / TONE indicator
SENS/BOTTOM knob
Adjusts the sensitivity when the filter is being altered.
DEPTH/TONE knob
Adjusts the reference frequency for the wah effect.
RESONANCE/E.LEVEL knob
Adjusts the amount of wah effect at frequencies near the
reference frequency. Turning the knob to the left widens
the range of frequencies in the vicinity of the reference
frequency in which the wah effect is to be produced,
while turning the knob to the right narrows this range.
OCTAVE UP/OCTAVE DOWN
Pedal indicator
This effect creates a fatter, thicker sound by adding to the
input sound the same sound raised one octave
(OCTAVE UP) or lower one octave (OCTAVE DOWN).
FILTER / TONE
pedal
*
This effect does not function correctly if two or more notes are
played simultaneously.
SENS/BOTTOM knob
Adjusts the volume of the direct sound.
DEPTH/TONE knob
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.
Adjusts the tone of the octave sound. Turn the knob to
the left for a milder sound or to the right for a sharper
sound.
RESONANCE/E.LEVEL knob
Adjusts the volume of the octave sound.
FILTER/TONE pedal
The filter tone is alternately switched on and off each time
you press the pedal. The indicator lights up when the effect is
on.
SLOW GEAR
This produces a volume-swell effect (similar to how a
violin is played.
TYPE knob
Selects the effect to be used from the eleven different effects
SENS/BOTTOM knob
Adjusts the sensitivity of the slow gear effect. As the
knob is turned more to the left, there is less response to
weaker picking, so the effect is expressed only when
strong picking is used.
that are available.
T.WAH UP/T.WAH DOWN/T.WAH EDGE
This effect alters the wah effect in response to the level at
the time the bass is played.
DEPTH/TONE knob
This adjusts the time needed for the volume to reach its
maximum from the moment you begin picking.
T.WAH UP:
RESONANCE/E.LEVEL knob
Adjusts the volume of the effect sound.
The filter shifts to higher frequencies in response to the
input.
T.WAH DOWN:
The filter shifts to lower frequencies in response to the
input.
10
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Using the Effects
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.
RESONANCE/E.LEVEL knob
Adjusts the volume of the defretter sound.
ENHANCER
This is an effect that clarifies the contour of the input
sound by emphasizing the sound following changes in
the input level.
SENS/BOTTOM knob
This adjusts the Enhancer sensitivity. The more the knob
is turned to the right, the more softly you can play and
still have the effect applied.
DEPTH/TONE knob
Adjusts the frequency at which the enhancer will begin
to be applied. The effect is applied at higher frequencies
the more the knob is turned to the right.
RESONANCE/E.LEVEL knob
Adjusts the amount of enhanced sound added to the
mix.
BOTTOM BOOST/MID SHAPE/HOLLOW
Alters the special characteristics of the bass sound.
BOTTOM BOOST:
Creates a tone with a boosted low end.
MID SHAPE:
Creates a tone with the midrange cut back.
HOLLOW:
Adds body resonance to create a tone resembling that of
an acoustic-electric bass.
SENS/BOTTOM knob
Adjusts the tone of the lower range.
DEPTH/TONE knob
Adjusts the tone of the upper range.
RESONANCE/E.LEVEL knob
Adjusts the volume.
11
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Using the Effects
DRIVE/SYNTH
fig.0130
MUFF FUZZ
DRIVE / SYNTH indicator
Models the Electro-Harmonix Big Muff π.
METAL
Wild, radical distortion sound.
HI-BAND DRIVE
With this effect, distortion is applied only to the high-
frequency sounds, and not to the sounds in the low-
frequency range.
SAW LEAD
A saw-wave synth-bass sound with a slight filter motion.
Using the effect in combination with the Expression
effective.
Pedal indicator
DRIVE / SYNTH
pedal
MILD FILTER
A saw-wave synth-bass sound with relatively weak filter
effect. A motion of the filter changes depending on the
strength or the position, when playing the bass.
DEEP FILTER
This distorts the sound, or create an effect like that of an
analog synth.
A saw-wave synth-bass sound with a strong filter effect.
A motion of the filter changes depending on the strength
or the position, when playing the bass.
DRIVE/SYNTH pedal
The DRIVE/SYNTH is alternately switched on and off each
time you press the pedal. The indicator lights up when the
effect is on.
SQUARE
A square-wave synth-bass sound. A motion of the filter
changes depending on the strength or the position, when
playing the bass.
TYPE knob
*
When SYNTH (SAW LEAD–SQUARE) is selected, this effect
does not function correctly if two or more notes are played
simultaneously.
NATURAL
Overdrive that gives a more natural sounding distortion.
DRIVE/SENS knob
BASS DRIVER
Models the TECH21 SANSAMP BASS DRIVER DI.
When DRIVE (NATURAL–HI-BAND DRIVE) is selected
Adjusts the amount of distortion applied. Turning the
knob to the right boosts the distortion and increases the
volume.
OVER DRIVE
Models the BOSS ODB-3.
DISTORTION
When SYNTH (SAW LEAD–SQUARE) is selected
Distortion tuned especially for use with basses.
Adjusts the amount of filtering applied.
12
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Using the Effects
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).
D.LEVEL/RESONANCE knob
When (NATURAL–HI-BAND DRIVE) is selected
Adjusts the volume of the direct sound.
*
Normally this adjusts the sound immediately ahead of its
being input to DRIVE/SYNTH, but when OCTAVE UP is
selected as the FILTER/TONE type, this adjusts the sound
input to the INPUT jack. Thus, only the sounds raised by an
octave are distorted, giving an effect that sounds like a guitar
playing in unison with the direct bass sound.
When SYNTH (SAW LEAD–SQUARE) is selected
Adjusts the amount by which the harmonic components
near the cutoff frequency are boosted.
E.LEVEL knob
Adjusts the volume.
*
Noise may creep into the sound if the E.LEVEL knob is turned
up too high. Adjust the E.LEVEL knob so the volume level
sounds the same whether the effect is switched on or off.
13
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Using the Effects
DELAY/MODULATION
fig.0140
DELAY / MODULATION indicator
“ꢀ.TAP DLY” (refer to the following)
“Adding a Delay Synchronized to the Performance
“Adding a Modulation Synchronized to the Performance
TYPE knob
Selects the effect to be used from the eleven different effects
that are available.
ꢀ.TAP DLY
This is a tempo delay that lets you set a dotted eighth
note delay time for the performance tempo by pressing
the DELAY/MOD pedal in time with the performance
tempo.
Pedal indicator
DELAY / MODULATION
pedal
*
The delay time can be set within the range of 46.5 ms to 1050
ms.
TIME/RATE knob
This has no effect or function.
This provides the delay effect, in which the sound is
slightly delayed and is fed back to the direct sound, and
the modulation effect, which adds a sort of swell to the
sound to give it greater breadth.
FEEDBACK/DEPTH knob
Adjusts the amount of feedback (number of repeats).
Turning the knob to the right increases the number of
times the sound repeats.
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.
E.LEVEL/RESONANCE knob
Adjusts the volume of the delay sound.
DELAY/MOD pedal
HOLD DLY
The Delay/Modulation is switched on or off each time you
press the pedal. When switched on, the DELAY/MOD
indicator and pedal indicator light up.
Up to 2.8 seconds of performance content is recorded,
then played back repeatedly. You can also layer this as
you perform something else, then record these together
(overdub).
*
When ꢀ.TAP DLY is selected, holding down the DELAY/
MOD pedal for at least two seconds, causes the effect to turn
off.
You can keep the recorded content playing continuously
as backing and produce other special effects.
*
*
When HOLD DLY is selected, you cannot switch the effect on/
off by pressing the pedal.
DELAY ON/OFF switches the Delay at the input to provide a
more natural effect. For this reason, if the FEEDBACK is
turned up when the Delay is turned off, the delay sound will
remain briefly.
TIME/RATE knob
This has no effect or function.
*
When a setting other than HOLD DLY, CHO + REVERB, or
REVERB is selected, you can use the DELAY/MOD pedal to
input the tempo, and set the delay time synchronized to the
performance tempo.
FEEDBACK/DEPTH knob
This has no effect or function.
E.LEVEL/RESONANCE knob
Adjusts the volume of the playback sound.
14
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Using the Effects
ANALOG DLY/0-400 ms DLY/300-1400 ms DLY
CHORUS
This is a stereo chorus effect that adds different chorus
sounds to L and R.
ANALOG DLY:
This gives a mild analog delay sound. The delay time
can be set within the range of 100 ms to 500 ms.
TIME/RATE knob
Adjusts the rate of modulation.
0-400 ms DLY:
Delay sound of 0 to 400 ms delay time.
FEEDBACK/DEPTH knob
Adjusts the depth of modulation.
300-1400 ms DLY:
Delay sound of 300 to 1400 ms delay time.
E.LEVEL/RESONANCE knob
Adjusts the volume of the chorus sound.
TIME/RATE knob
Adjusts the delay time.
CHO+DELAY
FEEDBACK/DEPTH knob
An effect combining chorus and delay.
Adjusts the amount of feedback (number of repeats).
Turning the knob to the right increases the number of
times the sound repeats.
The delay time can be set within the range of 100 ms to
800 ms.
*
The chorus setting is fixed.
E.LEVEL/RESONANCE knob
Adjusts the volume of the delay sound.
TIME/RATE knob
Adjusts the delay time.
FEEDBACK/DEPTH knob
PHASER
Adjusts the amount of feedback (number of repeats).
Turning the knob to the right increases the number of
times the sound repeats.
By adding varied-phase portions to the direct sound,
adds a twisting “warp” effect to the sound.
TIME/RATE knob
Adjusts the rate of phaser effect.
E.LEVEL/RESONANCE knob
Adjusts the volume of the delay sound.
FEEDBACK/DEPTH knob
Adjusts the depth of phaser effect.
CHO+REVERB
E.LEVEL/RESONANCE Knob
An effect combining chorus and reverb.
Adjusts the amount of resonance.
*
The chorus setting is fixed.
TIME/RATE knob
Adjusts the reverb time.
FLANGER
Adds a undulation like that of a jet ascending or
descending.
FEEDBACK/DEPTH knob
Adjusts the tonal quality of the reverb sound. Turn the
knob to the right for a brighter sound.
TIME/RATE knob
Adjusts the rate of flanging effect.
E.LEVEL/RESONANCE knob
Adjusts the volume of the reverb sound.
FEEDBACK/DEPTH knob
Adjusts the depth of flanging effect.
E.LEVEL/RESONANCE knob
Adjusts the amount of resonance.
REVERB
This effect adds reverberation to the sound.
TIME/RATE knob
Adjusts the reverb time.
FEEDBACK/DEPTH knob
Adjusts the tonal quality of the reverb sound. Turn the
knob to the right for a brighter sound.
E.LEVEL/RESONANCE knob
Adjusts the volume of the reverb sound.
15
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Using the Effects
Using the HOLD DLY Function
1. Set the TYPE knob to HOLD DLY.
Using the ꢀ.TAP DLY Function
1. Set the TYPE knob to ꢀ.TAP DLY.
The unit goes into recording standby and the pedal’s
indicator flashes at a fixed interval.
*
If the effect is OFF, press the DELAY/MOD pedal to turn it
ON.
*
After switching to HOLD DLY, you cannot perform any
operation during the 2.8-second period before the unit switches
to recording standby. Wait for at least 2.8 seconds before
moving on to the next step.
The pedal indicator flashes in time with the current
tempo.
2. Press the DELAY/MOD pedal in timing with the tempo
more than two times.
2. Press the DELAY/MOD pedal to start recording.
The reference tempo is determined by the time interval
between each press of the pedal. The reference tempo is
calculated in terms of quarter notes, and the delay time
setting is the dotted eighth note as referenced to the
reference tempo.
Recording starts when you press the DELAY/MOD
pedal.
The indicator flashes during recording.
3. Press the DELAY/MOD pedal once again to end
The pedal indicator flashes in time with the tempo.
fig.0141
recording.
Playback of the recorded content begins simultaneously
(the indicator remains lit).
Timing
Delay Sound
*
*
The maximum recording time is 2.8 seconds. If the recording
time exceeds 2.8 seconds, the recording stops automatically,
and the recorded content is then played back.
Adding a Delay Synchronized to
the Performance Tempo
An oscillating sound may be audible with extremely short
recording times.
The delay time can be set according to the tempo input
when the TYPE is set to ANALOG DLY, 0-400 ms DLY,
300-1400 ms DLY, or CHO+DELAY.
4. When layering recordings, repeat Steps 2 and 3.
*
The recorded content is cleared when the TYPE knob is
switched to a different setting or when the power is turned off.
The delay time can be set within the range of 62 ms to
1400 ms.
5. Adjust the volume.
You can set this regardless of whether the effect is on or
off.
Adjust the volume of the playback sound with the
E.LEVEL/RESONANCE knob.
1. Hold down the DELAY/MOD pedal for at least two
6. When returning to the recording standby, hold down
the DELAY/MOD pedal for the same length of time as
the recording.
seconds.
• If the DELAY/MOD pedal is pressed when the effect is
on, the pedal indicator goes out, and the effect is turned
off.
The unit returns to recording standby, and the pedal’s
indicator flashes at a fixed interval.
• If the DELAY/MOD pedal is pressed when the effect is
off, the pedal indicator turns red, and the effect is turned
on.
You can return to the recording standby immediately by
using external foot switch. For more detailed
When you continue to depress the pedal, after two
seconds the pedal's indicator starts to flash, and the
tempo can then be set with the effect on.
*
*
When playback is stopped, the recorded content is erased.
Here, the delay time is indicated by the value set with
the TIME/RATE knob.
To start recording again, wait 2.8 seconds, then carry out step
2.
2. Press the DELAY/MOD pedal in timing with the tempo
more than two times.
The delay time is set according to the time interval
between each press of the pedal.
The pedal indicator flashes in time with the tempo.
*
Press the pedal to set the tempo while no bass sound is playing.
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Using the Effects
3. Hold down the pedal switch for at least two seconds to
Adding a Modulation Effect Synchronized
to the Performance Tempo
When the TYPE is set to PHASER/FLANGER/CHORUS,
you can set the tempo so you get an effect that is
synchronized to the performance tempo.
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.
*
The allowable rate cycles for the tempo settings range from 62
ms to 2000 ms.
If you move the TIME/RATE knob after finishing this setting,
the delay time corresponding to the knob position takes effect.
1. Hold down the DELAY/MOD pedal for at least two
the Tempo Has Been Set
seconds.
• If the DELAY/MOD pedal is pressed when the effect is
on, the pedal indicator goes out, and the effect is turned
off.
follows.
• If it is within the delay time range that can be set for the
type currently selected, it is stored without change.
• If the DELAY/MOD pedal is pressed when the effect is
off, the pedal indicator turns red, and the effect is turned
on.
• If it exceeds the maximum delay time that can be set for
the type currently selected, the maximum value for the
type is stored.
When you continue to depress the pedal, after two
seconds the pedal's indicator starts to flash, and the
tempo can then be set with the effect on.
• If it is less than the minimum delay time that can be set
for the type currently selected, the minimum value for
the type is stored.
Here, the tempo is indicated by the value set with the
TIME/RATE knob.
(Example) When TYPE is 0-400 ms
When the delay time for the tempo setting is 600 ms:
Stored as 400 ms.
2. Press the DELAY/MOD pedal in timing with the tempo
more than two times.
The tempo is set according to the time interval between
each press of the pedal. The pedal indicator flashes in
time with the tempo.
(Example) When TYPE is 300-1400 ms
When the delay time for the tempo setting is 200 ms:
Stored as 300 ms.
Setting the TIME/RATE near the desired tempo
beforehand allows you to make faster and more natural
tempo settings.
3. Hold down the DELAY/MOD pedal for at least two
seconds to complete the tempo setting.
The effect goes on, and instead of flashing, the pedal
indicator will light.
*
If you move the TIME/RATE knob after finishing this setting,
the rate corresponding to the knob position takes effect.
You can use a foot switch to set the DELAY/MODULATION tempo. For more detailed information, refer to “Using the
A Note About the Quantize Function
When you set tempo using the DELAY/MOD pedal or start recording in HOLD DLY while the KICK DRUM is playing drum
beat, the set tempo or the recording time is adjusted automatically by the tempo of the drum beat.
The KICK DRUM sound will also be recorded on the HOLD DLY, so you will not be able to control the KICK DRUM sound
with the expression pedal, once you start the playback.)
17
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Using the Effects
Pedal
fig.0150
WAH
PEDAL MODE indicator
The effect will function as a pedal wah.
RESONANCE
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.
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.
+1 OCTAVE
Allows the pitch to be raised up to one octave above the
original bass sound.
*
This effect does not function correctly if two or more notes are
played simultaneously.
Using the Pedal as a Volume Pedal
When using the expression pedal as a volume pedal, press
-1 OCTAVE
Allows the pitch to be lowered up to one octave below the
original bass sound.
the expression pedal all the way forward and then give it a
stronger push, the PEDAL MODE indicator goes off.
fig.0160
*
This effect does not function correctly if two or more notes are
played simultaneously.
Not Lit
Strongly pressing
SOUND HOLD
You can hold the sounds played from the bass. This effect
allows you to hold low notes while playing melodies in the
upper registers.
*
This effect does not function correctly if two or more notes are
played simultaneously.
The volume decreases as the pedal's toe is raised, and
increases when the pedal is pressed down.
Using the Pedal as an Expression Pedal
When using the pedal as an expression pedal, press the
KICK DRUM
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.
expression pedal all the way forward and then give it a
stronger push, the PEDAL MODE indicator lights up.
fig.0170
Lit
Strongly pressing
You can select one of the following effects with the
expression pedal.
18
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Using the Effects
Using the SOUND HOLD Function
1. Turn the knob to SOUND HOLD.
Using the KICK DRUM Function
1. Turn the knob to KICK DRUM.
The number for the currently selected tone is shown in
the display (two seconds).
2. Firmly press down on the front end of the expression
pedal so the PEDAL MODE indicator lights up.
You can press BANK [
1: Tight sound
] [
] to switch the tone.
3. Bring the expression pedal back all the way to switch to
(low volume)
(high volume)
(low volume)
(high volume)
(low volume)
(high volume))
standby mode.
2: Tight sound sound
3: Standard kick drum sound
4: Standard kick drum sound
5: Sound with long sustain
6: Sound with long sustain
4. Play the bass, then press down on the expression pedal
a little.
The note played on the bass is held, and the volume
changes in keeping with the degree to which you’ve
depressed the pedal.
2. Firmly press down on the front end of the expression
pedal so the PEDAL MODE indicator lights up.
*
*
This effect does not function correctly if two or more notes are
played simultaneously.
3. After tilting the expression pedal back, press it fully
forward again.
Although you can adjust the volume of held notes with the
expression pedal, be careful not to raise the front tip of the
pedal too high, as this will cancel the hold.
The kick drum sound plays.
*
You can alter the volume level of the drum sound according to
how quickly you press the pedal. Press the pedal again quickly
to raise the volume; the volume decreases when the pedal is
pressed down again slowly.
5. Repeat Steps 3 and 4 to hold a different note.
6. To quit SOUND HOLD, firmly press down on the front
end of the expression pedal so the PEDAL MODE
indicator light goes out.
4. Lift up the expression pedal once, and press it down
again.
The kick drum sound is played.
The automatic drum beat starts when you hold the pedal
at the fully pressed position, after hitting the kick drum
sound twice or more. The tempo of the beat is set by the
time distance between the last played kick drum sound,
and the one just before.
If you do not need the automatic drum beat, just lift up
the pedal.
*
*
*
The volume of the rhythm is determined by the speed at which
the pedal is pressed the last time.
You can set the interval between beats in a range from 240 ms
to 2000 ms.
Once you start recording in HOLD DLY, you cannot restart
the drum beats, or change the tempo. However, you can make
the kick drum sound play every time you press down the pedal.
5. If you want to change the tempo or volume, repeat Step
4.
6. To stop playing the beat, pull back the expression
pedal so the front end is raised.
7. To quit the KICK DRUM function, firmly press down
on the front end of the expression pedal so the PEDAL
MODE indicator light goes out.
*
To quit the function while the beat is not being played, first
press the expression pedal forward slowly so as not to have the
kick drum sound play, then press the front end of the pedal
down firmly.
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Using the Effects
MASTER
NOISE SUPPRESSOR
fig.0180
fig.0190
This effect reduces the noise and hum picked up by bass
pickups. Since it suppresses the noise in synchronization
with the envelope of the bass sound (the way in which the
bass sound decays over time), it has very little effect on the
bass sound, and does not harm the natural character of the
sound.
Adjusts the overall tonal quality and volume level.
LOW knob
Adjusts the tone of the lower range. Turning the knob to the
right boosts the lower frequencies; turning the knob to the
left cuts the lower frequencies.
NOISE SUPPRESSOR knob
Adjust this parameter as appropriate for the volume of the
noise. If the noise level is high, a higher setting is
appropriate. If the noise level is low, a lower setting is
appropriate. Adjust this value until the decay of the bass
sound is as natural as possible.
MID knob
Adjusts the tone of the midrange. Turning the knob to the
right boosts the midrange; turning the knob to the left cuts
the midrange.
*
*
Turn the knob to OFF when not using the noise suppressor.
High settings for the threshold parameter may result in there
being no sound when you play with your bass volume turned
down.
MID FREQ knob
Adjusts the center frequency for the tone set with the MID
knob. This frequency can be set in a range from 100 Hz to 2.5
kHz.
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).
HIGH knob
Adjusts the tone of the upper range. Turning the knob to the
right boosts the high frequencies; turning the knob to the left
cuts the high frequencies.
To learn how to do this, see “Tuning the Bass (Bypass/
LEVEL knob
Adjusts the volume.
*
*
Turning the LEVEL knob up too much may cause the sound to
distort.
When all effects are switched off and all knobs other than MID
FREQ are set to the center position, the input and output
levels are identical.
20
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Saving and Loading the Created Tones (Memory Mode)
The ME-50B features a “Memory mode” that allows you to
store the various settings within the ME-50B itself, and then
About the Patch
call up and use the settings.
When actually performing on a bass, a variety of tones are
required to suit whatever the situation may be. The effects
that you may want to have turned on and parameter settings
for such effects vary according to the selected tone.
Switching Between Manual
and Memory Mode
The mode in which the tone produced reflects the panel
settings just as they are is called “Manual mode.” A dot
With the ME-50B, you can set these parameters, volume
levels, and so on, store a number of the aggregate settings in
memory, and use the pedals to switch the stored settings,
allowing you to change tones instantly.
appears in the display when the ME-50B is in Manual mode.
fig.0240
Such stored sets of settings are known as “Patches.” You can
create up to 24 patches.
The 24 patches are divided into eight “banks,” each of which
contains three patches.
fig.0260
Bank 8
Bank 3
Lit
Bank 2
Bank 1
Patch
●
When switching from Manual mode to Memory mode,
press the No. 2 and No. 3 pedals simultaneously; this
causes the MEMORY indicator to light up (and the dot
in the display disappears).
Patch
Patch
Patch Patch Patch
fig.0250
The setting for the NOISE SUPPRESSOR knob, MASTER
knobs, and KICK DRUM tone are also stored
individually for each patch.
Press simultaneously
Lit
●
Pressing the No. 2 and 3 pedals at the same time while
in Memory mode switches you to Manual mode.
*
Manual mode is the power-up default mode of the ME-50B.
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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.
Calling Up and Using Stored
Tones (Patch Change)
To switch patches, use BANK [
pedals (1–3).
] [
] and the number
*
You can carry out the Write procedure in both Manual mode
and Memory mode.
*
Bank 1, Number 1 is always selected at first when Memory
mode is entered after the power is turned on.
*
If the Write procedure is not carried out, then the tone you
have created is erased when the power is turned off or when
you switch to a different patch.
Switching Numbers
fig.0270
When the number pedal (1) is pressed, the number indicator
(2) above the pedal lights up, the patch with that number in
the currently selected group and bank is called up, and the
2 1,3
tone is switched instantly.
fig.0280
( )
2
( )
2
( )
2
2
( )
1
( )
1
( )
1
1. Press [WRITE].
The MEMORY indicator flashes. At the same time, the
bank indication in the display and the pedal indicator
flash, and the currently selected Patch Bank and Number
are shown.
Switching Banks
The bank is switched each time the BANK [
] [
] (1)
is pressed. The currently selected bank flashes in the Display
(2). (At this time, tones are not yet switched.)
2. Select the Patch to be used as the save destination.
■
■
Press BANK [
] [
] to select the bank.
*
You can switch among eight banks 1-8.
Press a number pedal (1-3) to select the number.
While in this state, if you press any of the number pedals (3),
the tone instantly switches to the sound of the patch at the
currently selected bank/number.
fig.0290
*
To stop the Write procedure, press [EDIT/EXIT], and return
to the previous mode.
3. Press [WRITE] once more.
( ) ( )
1 2
The tone is stored, and Memory mode is then enabled
(the MEMORY indicator lights up).
*
*
When a Write procedure is performed while the DELAY type
operation the indicator for the number pedal where the tone
was stored flashes to indicate that you can input the tempo.
When a Write procedure is carried out while the DELAY type
indicator for the number pedal where the tone was stored
flashes at a fixed interval to indicate that recording standby is
enabled.
( )
3
( )
3
( )
3
The tone stored in the patch designated as the save
destination is erased once the Write procedure is
executed.
You can use a foot switch to switch the banks.
For more detailed information, refer to “Using the Foot
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Saving and Loading the Created Tones (Memory Mode)
If the Patch Does Not Change
●
●
●
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.
• In Memory mode, you cannot switch effects on or off using the No. 1, 2, and 3 pedals.
About Tone Changes
About the HOLD DLY
By operating the knobs, you can change the tone of a patch
while it’s called up. Note, however, that the changed tone is
only temporary, and will be lost when you switch patches or
When a Patch that has a TYPE setting of HOLD DLY is called
up, the currently selected number pedal’s indicator flashes
slowly, indicating that the ME-50B is in recording standby.
Afterwards, the following conditions are in effect.
If you want to store it in memory, carry out the Write
• Pressing the currently selected number pedal rapidly:
begins recording
*
If there is a discrepancy between the current knob position and
the parameter stored in the patch, the change in the parameter
begins at the point when the knob is moved past the position
matching the parameter value as stored in the patch.
• Pressing the currently selected number pedal rapidly
during recording:
stops recording, starts Loop Playback
• Pressing the currently selected number pedal rapidly
during Loop Playback:
overdub recording
About the Tempo Setting
• Pressing the currently selected number pedal rapidly:
stops overdub recording, starts Loop Playback
If you hold down the currently selected number pedal for at
least two seconds, the pedal indicator flashes, and the ME-
50B switches to tempo setting mode, and the number pedal
can then be used to input the tempo.
• Holding down the currently selected number pedal for
the same length of time as the recording time:
releases the HOLD, switches to recording standby
Selecting from the following types while DELAY/
MODULATION is on allows you to set the delay time or rate.
About the ꢀꢁTAP DLY
• ANALOG DLY
• 0-400 ms DLY
• 300-1400 ms DLY
• PHASER
When DELAY is ON and a Patch that has a TYPE setting of
ꢀꢁ TAP DLY is called up, the currently selected number
pedal’s indicator flashes, and you can then set the delay time
• FLANGER
• CHORUS
• CHO+DELAY
*
When DELAY/MODULATION is off, you cannot change to
tempo setting mode.
Note, however, that the tempo setting is only temporary, and
will be lost when you switch patches or switch to the Tuner
If you want to store it in memory, carry out the Write
23
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Saving and Loading the Created Tones (Memory Mode)
Changing the Patch Settings
You can use a foot switch to set the DELAY/
(Patch Edit mode)
MODULATION tempo. For more detailed information,
Use the following procedure when editing the settings of a
patch you have called up.
fig.0320
1 2 4
1
1. Switch to the Patch whose settings you want to edit
2. Press [EDIT/EXIT].
The MEMORY indicator flashes, and editing of the patch
settings is enabled (Patch Edit mode).
3. Use the knobs and pedals to change the settings.
When settings are changed, the indicator for the changed
effect flashes (except for MASTER and NOISE
SUPPRESSOR).
If there is a discrepancy between the current knob
position and the parameter stored in the patch, the
change in the parameter begins at the point when the
knob is moved past the position matching the parameter
value as stored in the patch.
4. If you want to save the contents of your edit, carry out
*
*
Pressing [EDIT/EXIT] switches you to Memory mode without
saving the settings.
When the unit is not in Patch Edit mode, you cannot switch
the following effects on or off, and cannot select the KICK
DRUM tones.
• FILTER/TONE
• DRIVE/SYNTH
• DELAY/MODULATION
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Convenient Functions
Tuning the Bass (Bypass/Tuner)
The ME-50B features a built-in chromatic auto-tuner, which
allows you to tune your bass easily, without any need to
change any of your connections.
3. Play a single note on the string to be tuned; play the
string open.
The name of the note closest to the string that is played
Additionally, in Tuner mode, the input sound without any
effect whatsoever applied (the bypass sound) is output. Since
you can use the expression pedal to lower the volume, there
is no need for you to turn down your amp volume when you
appears in the Display.
fig.0350
tune.
fig.0330
2 7
Flash
*
The dot (flash) in the lower right of the Display changes to a
sharp sign (#).
*
Use your hand or other way to mute the other strings. You
may be unable to tune the string accurately if other strings are
vibrating during tuning.
4. First do a rough tuning so that the name of the note for
the string appears in the display.
(General Tuning)
1
Lo-B
4th
3rd
2nd
1st
Hi-C
B
E
A
D
G
C
1. Press the number 1and 2 pedals simultaneously to
5. Tune the instrument even more accurately until the
switch to Tuner mode.
tuning meter’s center (green) indicator is lit.
fig.0360
The TUNER indicator lights.
fig.0340
Too High
Lit
Just Tuned
2. Tune to the reference pitch.
You can change the reference pitch by pressing TUNER
PITCH [
] [
]. The reference pitch can be set in
Too Low
one-Hertz units in the range of 435-445 Hz.
1.–5.
(dot flash)
Display
5–9
0
Pitch (Hz)
435–439
440
441–445
6. Repeat Steps 3–5 to tune the other strings.
*
If changing the reference pitch, always be sure to exit Tuner
mode before turning off the power. 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.
One useful technique that makes tuning less confusing is
to start slightly under the target pitch and then tune
upwards little by little until the string is in tune.
7. Press [EDIT/EXIT] to return to the previous mode.
You can also return to the previous mode by pressing the
number 1 and 2 pedals simultaneously.
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Convenient Functions
Using the Foot Switch
When ꢀ.TAP DLY is selected
The reference tempo is determined by the time interval
between each press of the pedal. The reference tempo is
calculated in terms of quarter notes, and the delay time
setting is the dotted eighth note as referenced to the reference
tempo.
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
The delay time can be set only when the effect is ON.
The pedal indicator flashes in time with the tempo.
When ANALOG DLY, 0-400 ms DLY,
300-1400 ms DLY, or CHO+DELAY is selected
The delay time is set according to the time interval between
each press of the pedal. The delay time can be set within the
range of 62 ms to 1400 ms.
The delay time can be set only when the effect is ON.
Set the polarity switch
as shown below.
*
Press the pedal to set the delay time while no bass sound is
playing.
When PHASER, FLANGER, or CHORUS
is selected
The tempo is set to the interval between presses of the pedal,
and the effect sound is synchronized to the performance
tempo.
*
In Memory mode, the foot switch is used to switch banks.
Adding an Effect Synchronized to
the Performance Tempo
By using a special cable (the optional PCS-31), you can
connect two foot switches, and use one to switch the
compressor/limiter on and off, and the other as a tempo
The tempo can be set only when the effect is ON.
*
The tempo can be set to a rate period lasting from 62 ms to
2000 ms.
When HOLD DLY is selected
The recording or the playback stops immediately by pressing
the pedal, and returns to the recording standby position.
setting pedal.
fig.0361
When CHO+REVERB or REVERB is selected
No change results.
PCS-31
White
Red
Set the polarity switch
as shown below.
COMPRESSOR / LIMITER
DELAY / MODULATION
On/Off
Tempo setting
*
In Memory mode, the foot switch is used to switch banks.
26
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Convenient Functions
Switching Banks
Practicing Along with CDs
and MDs (AUX IN)
When playing CDs, MDs, tapes, or other such input, connect
the CD or MD player, tape recorder, or other device to the
AUX IN jack.
5U) connected to the FOOT SW jack on the rear panel, you
can use the foot switch to switch Banks (switching up).
ig.0300
*
AUX IN is a stereo mini jack.
fig.0370
CD/MD
Player, etc.
Set the polarity switch
as shown below.
By connecting with a special cable (the optional PCS-31), you
can connect two foot switches, and use them to switch Banks
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.
up and down.
fig.0310
*
On the ME-50B, you cannot adjust the volume level of the
sound input from the AUX IN jack. Adjust this on the
connected equipment.
*
Do not use a cable containing a resistor to connect CD or MD
players to the AUX IN jack. If a cable incorporating resistance
is used, audio from CD and MD players may become
inaudible.
PCS-31
White
Red
Set the polarity switch
as shown below.
Bank up
Bank down
27
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Appendices
Returning the ME-50B to Its
Adjusting the Expression Pedal
Although the ME-50B’s expression pedal has been set for
optimum operation at the factory, extended use and the
operating environment can result in the pedal going out of
adjustment.
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.
If you encounter problems such as being unable to switch the
PEDAL MODE SW on or off or fully cut off the sound with
the volume pedal, you can use the following procedure to
readjust the pedal.
This is referred to as “Factory Reset.”
To perform Factory Reset, carry out the following steps.
fig.0380
1,2
2
3,4
When you operate the expression pedal, please be
careful not to get your fingers pinched between the
movable part and the panel.
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.
1. While simultaneously pressing BANK [
] and
[WRITE], turn on the power.
1. Turn off the power.
“P” appears in the Display, then changes to “U.”
2. While simultaneously pressing BANK [
] and
2. Press the heel of the expression pedal to the base, press
[WRITE], turn on the power.
[WRITE].
“F” appears in the Display.
“d” appears in the Display.
*
To cancel Factory Reset, first turn off the power, and then turn
it on again.
3. Press the toe of the expression pedal to the base, press
[WRITE].
3. Press [WRITE].
“5” appears in the Display.
The MEMORY indicator flashes.
4. Adjust the PEDAL MODE SW.
4. Press [WRITE] once more.
Press BANK [
] [
] to set the value (1–9).
“F” flashes in the Display, and Factory Reset is executed.
The smaller the value, the lighter is the depression force
needed to switch the pedal on or off.
Never turn off the power while Factory Reset is in
progress.
5. Press [WRITE].
Save the settings in memory, then return to Manual
mode.
When Factory Reset is completed, the ME-50B returns to
Manual mode.
*
If the TUNING indicator flashes during steps 2 and 3, press
the pedal again, then press [WRITE].
28
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Appendices
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
●
●
●
Are connections to other devices correctly made?
Check the connections once more.
Is the volume turned down?
Check the volume levels on any connected amp or mixer.
Can you hear sound through the headphones when
headphones are connected?
If you can hear sound, it may be that there is a short in
the cable used to connect the amp or other device, or
perhaps a mistake in an external device’s settings. Check
the connecting cables and external devices once more.
●
●
Are volume-related parameters set to a low value?
Check “LEVEL” and other volume parameters to make
sure none is set too low.
Has the level been lowered with the expression pedal?
Sound is not output when the toe of the expression pedal
is in the raised position while the pedal is set to function
as a volume pedal.
Patches Cannot Be Changed
●
●
●
“1.” to “6.” is displayed
when BANK [ ] [ ] is pressed
●
A number display with dot indicates a number for
KICK DRUM sound.
In Manual or Patch Edit mode, you can select the
variation of kick drum sound by pressing BANK [
]
[
] when KICK DRUM is selected, whether the effect
A “b” appears in the display
●
The batteries are depleted. Replace them with new
29
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Appendices
Specifications
● Output Impedance
2 kΩ
ME-50B: Bass Multiple Effects
● AD Conversion
● Display
24 bit + AF method (*)
7 segments, 1character LED
● DA Conversion
● Jacks
24 bit
INPUT jack
● Sampling Frequency
OUTPUT jacks L (MONO)/R
AUX IN jack (Stereo Mini type)
PHONES jack
FOOT SW jack (COMP ON/OFF, TEMPO)
AC Adaptor jack
44.1 kHz
● Patches
24 (user)
● Effects
Compressor/Limiter
Filter/Tone
T. Wah
● Power Supply
DC 9 V: Dry batteries (R6/LR6 (AA) type) x 6,
AC Adaptor (PSA series: Optional)
Octave (Up/Down)
Slow Gear
Defretter
Enhancer
Bottom Boost
Mid Shape
● Current Draw
140 mA
*
Expected battery life under continuous use:
Carbon: 3.5 hours
Alkaline: 12 hours
These figures will vary depending on the actual conditions of use.
Hollow
Drive/Synth
Overdrive/Distortion
Bass Synth
Delay/Modulation
Delay
● Dimensions
384 (W) x 225 (D) x 78 (H) mm
15-1/8 (W) x 8-7/8 (D) x 3-1/8 (H) inches
Maximum height:
384 (W) x 225 (D) x 102 (H) mm
15-1/8 (W) x 8-7/8 (D) x 4-1/16 (H) inches
Phaser
Flanger
Chorus
Reverb
● Weight
3.15 kg / 7 lbs (including batteries)
● Accessories
Noise Suppressor
Master EQ
Owner’s Manual
Dry Batteries (Alkaline: LR6 (AA) type) x 6
Roland Service (Information Sheet)
Effects for Expression Pedal
Foot Volume
Wah
● Options
Resonance
AC Adaptor: BOSS PSA series
Bend (+1 Octave, -1 Octave)
Sound Hold
Kick Drum
Foot Switch: BOSS FS-5U
*
0 dBu = 0.775 Vrms
● Nominal Input Level
INPUT: -10 dBu
In the interest of product improvement, the
specifications and/or appearance of this unit are subject
to change without prior notice.
AUX IN: -10 dBu
● Input Impedance
INPUT: 1 MΩ
(*) AF method (Adaptive Focus method)
This is a proprietary method from Roland that vastly
improves the signal-to-noise (S/N) ratio of the A/D and
D/A converters.
AUX IN: 100 kΩ
● Nominal Output Level
-10 dBu
30
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Patch List
BANK NO.
Description
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Sound using MID SHAPE, suitable for slapping play.
Tube amp sound, good for rock'n roll.
1
2
3
4
5
6
7
8
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.
Fat bass sound using BOTTOM BOOST.
Drive sound with wild distortion.
Distorted octave-up sound mixed with direct bass sound, suitable for single note playing.
Phaser sound suitable for slapping or picking play.
Nice distorted sound with pedal wah.
Sound for solo performance using ꢀ.TAP DLY and SOUND HOLD.
Fat, rocking sound for picking play.
Wild jet phaser sound.
Synth bass sound with much sound pressure.
Sound for R&B style of playing.
A bowing type of sound using SLOW GEAR.
Synth bass sound with heavy vibrato.
Slapping sound for funk-rock type of music.
Heavy sound with a combination of OCTAVE DOWN and MUFF FUZZ.
An effective synth sound. You changes pitch with use of Expression pedal.
An acoustic bass type sound. Play near the fret-board, using a neck pickup.
Whirling flanger sound.
Heavily filtered sound by combining touch wah and synth bass.
31
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Factory Settings
COMPRESSOR/LIMITER
FILTER/TONE
SENS/ DEPTH/
DRIVE/SYNTH
BANK NO.
THRESHOLD
/
RESONANCE
/
DRIVE/ TONE/ D.LEVEL/
SENS CUTOFF RESONANCE
TYPE
LEVEL
TYPE
TYPE
E.LEVEL
SUSTAIN
BOTTOM TONE E.LEVEL
1
NATURAL
NATURAL
D-COMP
NATURAL
OFF
40
55
45
65
50
MID SHAPE
ENHANCER
T.WAH UP
DEFRETTER
OFF
60
50
50
50
70
40
45
50
50
35
50
50
OFF
1
2
3
4
5
6
7
8
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
85
NATURAL
OFF
75
50
0
60
45
50
OFF
MUFF FUZZ
70
40
35
50
35
40
40
NATURAL
40
55
45
50
OFF
DEEP FILTER 25
OFF
160D SOFT 70
BOTTOM BOOST
ENHANCER
OCTAVE UP
OFF
50
50
50
50
50
35
50
NATURAL
OFF
50
25
BASS DRIVER 80
15
30
0
50
50
100
METAL
90
75
D-COMP
OFF
40
45
OFF
BOTTOM BOOST
OCTAVE UP
ENHANCER
OFF
55
50
50
50
90
20
40
15
50
METAL
50
50
50
50
NATURAL
LIMITER
40
50
55
45
60
50
45
OFF
OFF
160D HARD 25
MUFF FUZZ
SAW LEAD
NATURAL
DISTORTION
SQUARE
OFF
85
0
40
15
45
15
40
40
50
0
40
50
80
50
50
LIMITER
NATURAL
OFF
50
40
OFF
BOTTOM BOOST
SLOW GEAR
OFF
50
50
50
90
40
20
85
20
100
50
45
160D SOFT 40
160D HARD 15
65
85
50
50
45
45
55
MID SHAPE
70
80
45
65
NATURAL
NATURAL
NATURAL
NATURAL
15
50
70
50
OCTAVE DOWN 100
OFF
100
MUFF FUZZ
100
25
50
80
50
40
30
DEEP FILTER 45
OFF
HOLLOW
OFF
100
50
50
30
HI-BAND DRIVE 100
60
50
85
50
45
50
160D SOFT 50
T.WAH DOWN
40
100
SQUARE
50
*
The correspondence between the setting value and the actual knob position is shown on the following diagram.
MID FREQ
NOISE
SUPPRESSOR
50
500 Hz
40
0
60
360 Hz
260 Hz
680 Hz
930 Hz
30
20
10
70
80
90
100
OFF
190 Hz
1.3 kHz
90
80
70
10
20
30
140 Hz
1.8 kHz
60 40
50
100
100 Hz
2.5 kHz
32
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Factory Settings
DELAY/MODULATION
Expression Pedal
MASTER
MID FREQ HIGH LEVEL
NOISE
SUPPRESSOR
TIME/ FEEDBACK
RATE DEPTH RESONANCE
/
E.LEVEL/
TYPE
PEDAL MODE EXPRESSION
LOW
80
MID
70
OFF
OFF
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
KICK DRUM
WAH
100 Hz 60
680 Hz 40
300 Hz 40
1.5 kHz 50
930 Hz 50
680 Hz 50
1.3 kHz 40
930 Hz 30
680 Hz 50
1.8 kHz 60
300 Hz 50
360 Hz 50
360 Hz 40
500 Hz 50
680 Hz 50
800 Hz 50
500 Hz 50
420 Hz 60
1.8 kHz 70
680 Hz 45
500 Hz 50
160 Hz 35
680 Hz 40
2.1 kHz 60
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
60
60
60
40
90
60
30
40
90
30
60
60
45
30
30
45
70
60
90
70
75
60
30
70
70
60
70
85
85
50
50
50
80
60
40
20
85
85
60
85
85
50
60
40
50
80
50
60
65
50
40
60
60
50
15
50
40
REVERB
CHO+REVERB
OFF
0
50
50
5
-1 OCTAVE
KICK DRUM
WAH
50
15
ANALOG DLY
OFF
50
0
30
45
RESONANCE
WAH
PHASER
0
0
WAH
300-1400 ms DLY 15
30
40
40
60
WAH
PHASER
OFF
40
WAH
EXPRESSION WAH
ꢀ.TAP DLY
OFF
-
15
85
90
50
EXPRESSION SOUND HOLD 50
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
WAH
75
70
50
50
50
70
65
50
50
PHASER
OFF
10
KICK DRUM
RESONANCE
WAH
OFF
CHO+DELAY
FLANGER
OFF
50
85
35
50
30
15
-1 OCTAVE
RESONANCE
+1 OCTAVE
WAH
OFF
CHO+DELAY
REVERB
FLANGER
0-400 ms DLY
0
50
50
85
20
85
15
50
20
EXPRESSION -1 OCTAVE
15
10
40
VOLUME
VOLUME
VOLUME
SOUND HOLD 50
+1 OCTAVE
50
60
RESONANCE
33
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Blank Chart
COMPRESSOR/LIMITER
FILTER/TONE
SENS/ DEPTH/
DRIVE/SYNTH
BANK NO.
THRESHOLD
/
RESONANCE
/
DRIVE/ TONE/ D.LEVEL/
SENS CUTOFF RESONANCE
TYPE
LEVEL
TYPE
TYPE
E.LEVEL
SUSTAIN
BOTTOM TONE E.LEVEL
1
1
2
3
4
5
6
7
8
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
34
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Blank Chart
DELAY/MODULATION
Expression Pedal
MASTER
MID FREQ HIGH LEVEL
NOISE
SUPPRESSOR
TIME/ FEEDBACK
RATE DEPTH RESONANCE
/
E.LEVEL/
TYPE
PEDAL MODE EXPRESSION
LOW
MID
35
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Blank Chart
COMPRESSOR/LIMITER
FILTER/TONE
SENS/ DEPTH/
DRIVE/SYNTH
BANK NO.
1
THRESHOLD
/
RESONANCE
/
DRIVE/ TONE/ D.LEVEL/
SENS CUTOFF RESONANCE
TYPE
LEVEL
TYPE
TYPE
E.LEVEL
SUSTAIN
BOTTOM TONE E.LEVEL
1
2
3
4
5
6
7
8
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
36
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Blank Chart
DELAY/MODULATION
Expression Pedal
MASTER
MID FREQ HIGH LEVEL
NOISE
SUPPRESSOR
TIME/ FEEDBACK
RATE DEPTH RESONANCE
/
E.LEVEL/
TYPE
PEDAL MODE EXPRESSION
LOW
MID
37
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Index
Numerics
H
S
K
T
A
L
B
M
C
V
W
D
N
O
E
P
F
R
38
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For EU Countries
For the USA
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. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
–
–
–
–
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
Unauthorized changes or modification to this system can void the users authority to operate this equipment.
This equipment requires shielded interface cables in order to meet FCC class B Limit.
For Canada
NOTICE
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
AVIS
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
39
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G6017377
**********
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