Thank you, and congratulations on your choice of the BOSS SL-20 Audio Pattern Processor.
Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY”
and “IMPORTANT NOTES” (separate sheet).
These sections provide important information concerning the proper operation of the unit.
Additionally, in order to feel assured that you have gained a good understanding of every
feature provided by your new unit, this manual should be read in its entirety. The manual
should be saved and kept on hand as a convenient reference.
Main Features
● Continuously cuts input audio sounds and create a wide variety of slice patterns.
● Includes a “HARMONIC” slice pattern that produces melodies from the chords you play.
This feature provides you with a new way to express your musical ideas.
● Includes a recording function. You can record up to forty seconds of the phrases you play,
then play these back with loop playback. This lets you enjoy performing solos backed by
your recorded phrases.
● The SL-20 is equipped with a MIDI IN connector, allowing you to synchronize tempos with
external MIDI devices.
● The unit provides six different types of stereo effects, including three-dimensional sound
field effects, which are available when the SL-20 is used in stereo output.
● An expression pedal (optional) can be connected and used for hands-free control of the
direct level, effects level, and other parameters.
●
The TEMPO indicator provides a clear confirmation of the current tempo, even on dimly lit stages.
Copyright © 2008 BOSS CORPORATION
All rights reserved. No part of this publication may be reproduced in
any form without the written permission of BOSS CORPORATION.
Panel Descriptions
Front Panel
TEMPO Indicator
BANK Knob
PATTERN Knob
Turn to switch the
slice pattern.
The slice pattern is
composed of one
measure.
This flashes in sync with the tempo.
Turn to switch the
slice pattern variation.
The indicator flashes red on the slice pattern’s first
beat and green on the second, third, and fourth beats.
*
TEMPO Knob
This sets the tempo. Turn the knob to the
right to increase the tempo, and to the left
to slow the tempo down.
EFFECT LEVEL Knob
Adjusts the volume of
the effect sound. The
volume of the effect
sound increases as the
knob is turned to the
right.
You can adjust the tempo more precisely
by turning the knob slowly.
*
You cannot set the tempo with the SL-20
while MIDI clock is being received.
PEDAL MODE Button
This selects the behavior of the START/
STOP pedal when it’s pressed.
LATCH:
Pressing the START/STOP
pedal toggles the effect on/off.
*
When switching effects off, the effect
switches off at the time the pedal is released.
MOMENTARY
:
The effect is switched on only as
long as the START/STOP pedal
is held down. Releasing the
pedal switches off the effect.
DIRECT LEVEL Knob
Adjusts the volume of
the direct sound when
the effect is on. The
volume of the direct
sound increases as the
knob is turned to the
right.
DUTY Knob
Adjusts the duration of the slice pattern
sound. The sound is played longer the
further the knob is turned to the right.
ATTACK Knob
Adjusts the volume of the slice pattern’s attack.
The volume of the attack is boosted as the knob is turned to the right.
OUTPUT MODE Button
This switches the output mode.
*
You can select the output mode only when connected for stereo output. MONO is selected when the
SL-20 is connected in monaural.
OUTPUT MODE List
OUTPUT MODE
MONO
Function
The same signal is output from both the OUTPUT R/MONO jack and the L jack.
Output with fixed left and right positions.
STEREO FIXED
RANDOM
The output randomly alternates between left, right, and center.
The output bounces between the left and right channels.
The location of the sound shifts smoothly between the left and right channels.
PING-PONG
AUTO
The location of the sound moves forward and back as well as left and right.
This produces a swirling, three-dimensional type of sound.
(3D Cross)
(3D Panner)
3
Panel Descriptions
POWER Indicator
This indicator shows whether the power is on or off,
and also functions as a battery-check indicator.
*
When the indicator starts to dim or fails to light, the
batteries are exhausted. When this occurs, install new
batteries. For instructions on replacing the batteries, refer
to “Installing Batteries” (p. 6).
*
The power comes on when a plug is inserted into the
INPUT R/MONO jack, and goes off when it is
unplugged.
TAP Indicator
This lights up when the TAP pedal
is pressed.
START/STOP Indicator
This lights up when the ef-
fect is on.
REC Indicator
This flashes when the SL-20
is in recording standby and
lights steadily during
recording.
PLAY Indicator
This lights up during loop
playback of phrases.
TAP Pedal
START/STOP Pedal
You can set the tempo by tapping it in
with this pedal.
This alternately switches the effect on or
off each time the pedal is pressed.
The slice pattern plays when the effect is
switched on.
You can jump back to the beginning of
the slice pattern measure by pressing the
TAP pedal while the TAP indicator is off.
When this is pressed during playback of
a slice pattern or phrase, the SL-20
returns the slice pattern or phrase to the
beginning and starts playback from there.
Pressing and holding down the pedal for
at least two seconds switches the SL-20 to
recording standby. After recording, the
SL-20 switches to loop playback.
“Recording/Loop Playback” (p. 13)
*
You cannot set the tempo with the SL-
20 while MIDI clock is being received.
*
*
When switching effects off, the effect
switches off at the time the pedal is
released.
“Using the TAP Pedal to Cue the
Slice Pattern” (p. 12)
“Setting the Tempo with the TAP
Pedal” (p. 12)
When the effects are off, sound arriving at
the INPUT jack is output without change.
“Recording/Loop Playback” (p. 13)
4
Panel Descriptions
Rear Panel
INPUT Jacks (INPUT R/MONO, L)
These input jacks are used for connecting
electric guitars, bass guitars, other
instruments, and effects processors.
If using monaural input, connect only to the
R/MONO jack.
EXP Pedal Jack
Connect an optional expression pedal (such as the
Roland EV-5; optional) to this jack.
Once connected, the pedal can be used to control the
direct level and effect level in real time.
*
Use only the specified expression pedal (such as the
Roland EV-5; optional). By connecting any other
expression pedals, you risk causing malfunction and/or
damage to the unit.
“Making the Connections” (p. 7)
*
The INPUT R/MONO jack also doubles as
the power switch. The power comes on when
a plug is inserted into the INPUT R/MONO
jack, and goes off when it is unplugged.
Unplug any connected plugs when the unit
is not in use.
“Controlling Functions with an Expression
Pedal” (p. 15)
DC IN (AC Adaptor) Jack
This jack is for connecting an AC
adaptor (BOSS PSA series;
long performances without
worrying about the batteries
going dead.
*
specified type (PSA series;
optional). Using an adaptor
other than the specified type may
cause the unit to malfunction, or
cause damage to the unit.
OUTPUT Jacks (OUTPUT R/MONO, L)
Use these jacks to connect the SL-20 to a guitar amp,
a keyboard amp, or to an effects processor, mixer,
multitrack recorder, or other such device.
Connecting to both the R/MONO and L jacks
allows you to achieve a variety of stereo effects.
If using monaural output, connect only to the R/
MONO jack.
MIDI IN Connector
This connector receives the MIDI clock from
a connected external MIDI device to
synchronize the devices’ tempos.
“Synchronizing Performances with
External MIDI Devices” (p. 18)
“OUTPUT MODE Button” (p. 3)
“Making the Connections” (p. 7)
“Setting the Output Mode” (p. 17)
5
Installing Batteries
Insert the batteries as shown below, being careful to orient the batteries correctly.
fig.010
• 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 knobs. Also, you should try to orient the unit so that no buttons or knobs get
damaged.
• When turning the unit upside-down, handle it 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.
• Batteries are supplied with the unit. The life of these batteries may be limited,
however, since their primary purpose is to enable testing.
• When the batteries run down, the POWER indicator grows dim. If this happens, install
new batteries.
• When replacing the batteries, use six AA-type batteries.
• Avoid using new batteries together with used ones. In addition, avoid mixing different
types of batteries. Doing so may result in fluid leakage that can damage the unit.
• Battery life can vary depending on the battery type.
Continuous usage time under battery power is about 18 hours with alkaline batteries
and about 7 hours with carbon batteries. (This may vary according to usage
conditions.)
6
Making the Connections
• When using an AC adaptor, be sure to use only the specified type (PSA series;
optional). Using an adaptor other than the specified type may cause the unit to
malfunction, or cause damage to the unit.
• To prevent malfunction and/or damage to speakers or other devices, always turn
down the volume and turn off the power to all devices before making any connections.
• Noise may be produced if wireless communications devices, such as cell phones, are
operated in the vicinity of this unit. Such noise could occur when receiving or initiating
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 them
off.
• Some connection cables contain resistors. When connection cables with resistors are
used, the sound level may be extremely low, or impossible to hear. For information on
cable specifications, contact the manufacturer of the cable.
• The INPUT R/MONO jack doubles as a power switch. Inserting a plug in the INPUT
R/MONO jack turns on the power; the power is switched off when the plug is
disconnected. Be sure to unplug the cable from this jack when the SL-20 is not in use.
• If there are batteries in the unit while an AC adaptor is being used, normal operation
will continue should the line voltage be interrupted (such as from a power blackout or
power cord disconnection).
• 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.
When powering up:
Turn on the power to your guitar amp last.
When powering down: Turn off the power to your guitar amp first.
• Always make sure to have the volume level turned down before switching on power.
Even with the volume all the way down, you may still hear some sound when the
power is switched on, but this is normal, and does not indicate a malfunction.
• When operating on battery power only, the POWER indicator will become dim when
battery power gets too low. Replace the batteries as soon as possible.
• This unit is equipped with a protection circuit. A brief interval (a few seconds) after power-
up is required before the unit will operate normally.
7
Making the Connections
Mono Input Connection
■ Guitar or Bass
fig.020
AC Adaptor
PSA series
(optional)
Guitar
(Bass)
Guitar Amp
(Bass Amp)
This works well when used in combination with distortion and modulation effects
processors.
■ Keyboard
fig.030
AC Adaptor
PSA series
(optional)
Keyboard
MTR
Mixer
8
Making the Connections
Stereo Input Connection
■ Guitar or Bass
fig.060
AC Adaptor
PSA series
(optional)
Effector
Guitar Amp
(Bass Amp)
Guitar
(Bass)
■ Keyboard
fig.070
AC Adaptor
PSA series
(optional)
Keyboard
MTR
Mixer
9
Operating the SL-20
Basic Operation
3
1
2
4
5
6
7
8
9
10
1. Set the knobs as shown in the figure above.
10
2. Press the START/STOP pedal
to switch the effect on (the START/STOP
indicator lights).
1
3. Turn the EFFECT LEVEL knob
to adjust the volume of the effect.
4
4. Turn the TEMPO knob
to adjust the tempo.
*
7
5. Turn the ATTACK knob
to adjust the volume of the attack level.
8
6. Turn the DUTY knob
to adjust the length of time the sound plays.
5
7. Turn the DIRECT LEVEL knob
to adjust the volume of the direct sound when
to set the output mode.
the effect is on.
6
8. Use the OUTPUT MODE button
*
You can set the output mode only when the SL-20 is connected for stereo output. MONO mode is
selected when the SL-20 connected for monaural output. For more detailed information about the
output mode, refer to “OUTPUT MODE Button” (p. 3).
2
9. Turn the BANK knob
to change the slice pattern variation.
3
10. Turn the PATTERN knob
to switch the slice pattern.
*
You can set the action performed when slice patterns are switched. For details, refer to “Setting the
Tempo Response When Slice Patterns Are Switched” (p. 16).
9
11. Use the PEDAL MODE button
to set the function that the START/STOP pedal
executes when it’s pressed.
*
For more detailed information about the pedal mode, refer to “PEDAL MODE Button” (p. 3).
10
Operating the SL-20
Panel Operation
Setting the Tempo
Switching the Output Mode
4
6
Turn the TEMPO knob
to the right to
Use the OUTPUT MODE button
switch the output mode.
to
increase the tempo; to slow the tempo down,
turn the knob to the left.
*
*
You can select the output mode only when
connected for stereo output. MONO is selected
when the SL-20 is connected in monaural.
You can adjust the tempo more precisely by
turning the knob slowly.
For more detailed information about the output
mode, refer to “OUTPUT MODE Button” (p. 3).
*
*
The tempo setting is stored in memory.
You cannot set the tempo with the SL-20 while
MIDI clock is being received.
Switching the Pedal Mode
Use the PEDAL MODE button
the pedal mode.
Switching the Slice Pattern
9
to switch
2
Use the BANK knob
and PATTERN
*
For more detailed information about the pedal
mode, refer to “PEDAL MODE Button” (p. 3).
3
knob
to switch slice patterns.
The HARMONIC (BANK knob positions 4
and 5) contains slice patterns with melodic
content.
Adjusting the Attack and
Duty
To increase the volume of the attack, turn the
7
ATTACK knob
to the right.
To increase the length of the sound, turn the
8
DUTY knob
to the right.
Adjusting the Effect Level
1
Use the EFFECT LEVEL knob
to adjust
the volume levels of the effect sound.
Adjusting the Direct Level
5
Use the DIRECT LEVEL knob
to adjust
the volume levels of the direct sound when
the effect is on.
11
Operating the SL-20
Using the TAP Pedal to Cue the Slice Pattern
You can jump back to the beginning of the current slice pattern by pressing the TAP
pedal while the TAP indicator is off.
Lit
*
The slice pattern is not played when the effect is switched off.
Setting the Tempo with the TAP Pedal
You can set the tempo for the slice pattern by pressing the TAP pedal in time with the
tempo.
*
You cannot set the tempo with the SL-20 while MIDI clock is being received.
1. Press the TAP pedal two or more times at the tempo you want to set.
This sets the tempo. The TEMPO indicator flashes in sync with the tempo.
Blink
Press two or more times
*
The tempo setting is stored in memory.
12
Operating the SL-20
Recording/Loop Playback
The SL-20 lets you record up to forty seconds of sounds played with slice patterns.
After the recording is completed, loop playback of the sound begins. This allows you
to perform with backing from the recorded sound.
*
*
You cannot record while the pedal mode (p. 3) is set to MOMENTARY.
Recorded phrase lengths are automatically adjusted to measure units.
1. Put the SL-20 in recording
standby.
2. Recording begins.
Play.
Lit
Blink
Off
Lit
Hold down at least
two seconds
Press when the TEMPO
indicator lights steadily
4. Loop playback stops.
3. Recording stops (after it stops,
the sounds are loop played back).
Play.
Off
Lit
Off
Press when the TEMPO
indicator lights steadily
1. Press and hold down the START/STOP pedal for at least two seconds to put the SL-
20 in recording standby mode.
The START/STOP indicator lights up, and the REC indicator starts flashing.
*
You can cancel the recording standby status by pressing and holding down the START/STOP pedal
for at least two seconds while the SL-20 is in recording standby.
2. Press the START/STOP pedal to begin recording.
The START/STOP indicator goes out, and the REC indicator lights steadily, instead of
flashing.
*
Recording begins from the start of the beat.
13
Operating the SL-20
3. Press the START/STOP pedal to stop recording.
The PLAY indicator lights up; loop playback of the recorded phrase begins.
*
Pressing the TAP pedal during loop playback of a phrase causes the SL-20 to return the phrase to the
beginning and play it back from that point.
You can enjoy performing solos using recorded phrases as backing sounds.
The volume level of the backing can be adjusted with the EFFECT LEVEL knob, while
you can use the DIRECT LEVEL knob to adjust the volume of the solo performance.
4. Press the START/STOP pedal to stop loop playback.
The PLAY indicator goes out.
*
*
Changing tempo by the SL-20 is not available while recording or loop playing back.
Recorded phrases cannot be permanently stored onboard the SL-20. Loop playback stops, and the
recorded phrase is deleted.
*
*
You cannot change the tempo of the recorded phrases.
This feature does not permit overdubbing.
14
Operating the SL-20
Controlling Functions with an Expression Pedal
You can connect an expression pedal (such as the Roland EV-5; optional) to the EXP
jack and use the pedal to control a variety of functions.
Function
Direct Level
Effect Level
Explanation
Controls the volume of the direct sound when the effect is on.
Controls the volume of the effect sound.
Output Level Controls the output level when the effect is on.
Attack
Duty
Controls the volume of the attack.
Controls the duration of the sound.
*
*
With the Direct Level, Effect Level, Attack, and Duty functions, moving the pedal all the way back to
the heel position sets the minimum value; moving the pedal all the way forward to the toe position sets
the value to the current setting of the corresponding front-panel knob.
Set the minimum volume for the connected expression pedal to the “0” position.
Setting the Function of the Expression Pedal
1. While holding down the TAP pedal, connect the expression pedal.
The TAP indicator flashes.
Expression pedal
Hold Down
(Roland EV-5, etc)
2. After confirming that the TAP indicator has flashed, release the TAP pedal.
3. Select the desired expression pedal function with the PATTERN knob.
PATTERN
Function
Direct Level
Effect Level
Output Level
Attack
1
2
3
4
5
Duty
4. Press the TAP pedal.
The TAP indicator flashes rapidly, and the setting is saved to the SL-20’s memory.
Be sure not to turn off the power while the TAP indicator is flashing rapidly.
This setting remains stored even after the power is turned off.
The factory default setting for the expression pedal function is Direct Level.
*
*
*
15
Operating the SL-20
Setting the Tempo Response When Slice
Patterns Are Switched
When switching slice patterns, you can have all the patterns play at a set tempo,
without the tempos switching to the ones set in each individual pattern.
1. While holding down the PEDAL MODE button, turn on the power to the SL-20.
The upper part of the TEMPO indicator lights in green.
*
Plugging into the INPUT R/MONO jack switches on the power.
2. When the TEMPO indicator starts flashing, release the PEDAL MODE button.
3. Use the PATTERN knob to select the method used for setting the slice patterns.
PATTERN
Explanation
Each time the slice patterns are switched, the tempo changes to that
of the pattern you are switching to.
When the slice pattern is switched, playback of the new pattern be-
gins immediately.
1
The tempo does not switch when the slice patterns are switched.
When a new slice pattern is selected, the current slice pattern plays
to its end, after which the new slice pattern starts playing.
2
4. Press the PEDAL MODE button.
The TEMPO indicator flashes three times, and the setting is saved to the SL-20’s
internal memory.
Once the setting is saved, and the SL-20 returns to its normal operating status.
*
*
*
Be sure not to turn off the power while the TEMPO indicator is flashing.
This setting remains stored even after the power is turned off.
The factory default setting for this action is PATTERN 1.
16
Operating the SL-20
Setting the Output Mode
You can have the output mode stereo effect (p. 3) applied to the direct sound when the
effect is switched on.
1. While holding down the PEDAL MODE button, turn on the power to the SL-20.
The upper part of the TEMPO indicator lights in green.
*
Plugging into the INPUT R/MONO jack switches on the power.
2. When the TEMPO indicator starts flashing, release the PEDAL MODE button.
3. Use the PATTERN knob to set the output mode.
PATTERN
Explanation
3
4
The stereo effect is applied to the direct sound.
The stereo effect is not applied to the direct sound.
4. Press the PEDAL MODE button.
The TEMPO indicator flashes three times, and the setting is saved to the SL-20’s
internal memory.
Once the setting is saved, and the SL-20 returns to its normal operating status.
*
*
*
Be sure not to turn off the power while the TEMPO indicator is flashing.
This setting remains stored even after the power is turned off.
The factory default setting for this action is PATTERN 3.
17
Operating the SL-20
Synchronizing Performances with External
MIDI Devices
MIDI (Musical Instrument Digital Interface) is a universal standard that allows for the
exchange of performance data and other information among electronic musical instruments
and computers. Once MIDI cables are used to connect together devices equipped with MIDI
connectors, each device can send data to, or receive data from any of the others. You can
synchronize the SL-20 with performances played on an external MIDI device.
Data Synchronized with the SL-20
The following MIDI messages are handled during synchronization with the SL-20.
• Timing Clock
• Start
• Continue
Timing Clock corresponding to the tempo is transmitted from the master device
(external MIDI device). The slave device (SL-20) synchronizes its performance to the
transmitted Timing Clock. Start and Continue MIDI messages are also transmitted
when these operations are carried out with the master device (external MIDI device).
Upon receiving the Start message from the external MIDI device, the SL-20 starts its
slice pattern from the top. Upon receiving the Continue message, the SL-20 continues
to playback from the current position in sync with the external MIDI device.
*
For more information on the MIDI messages handled by the devices you are connecting, refer to the
owner’s manual for each device.
1. Connect the external device to the MIDI IN connector.
MIDI OUT
MIDI IN
Master
Slave (SL-20)
2. Transmit the MIDI messages from the external MIDI device.
The SL-20’s performance is synchronized according to the MIDI messages from the
external MIDI device.
*
*
You cannot set the tempo with the SL-20 while MIDI clock is being received.
In some cases, when the SL-20 receives the MIDI Clock and synchronization of the performance begins,
the SL-20 may pause for several seconds. Afterwards, the performance is synchronized to the
transmitted Timing Clock.
*
If the MIDI cable is disconnected during a synchronized performance, the SL-20’s performance stops playing.
Approximately one second after that, the slice pattern begins playing at the SL-20’s internal tempo setting.
18
Operating the SL-20
Setting the Retrigger Mode
The Retrigger Mode setting determines whether or not the slice pattern will be cued to
the beginning when the START/STOP pedal is pressed during reception of MIDI Clock.
1. While holding down the PEDAL MODE button, turn on the power to the SL-20.
The upper part of the TEMPO indicator lights in green.
*
Plugging into the INPUT R/MONO jack switches on the power.
2. When the TEMPO indicator starts flashing, release the PEDAL MODE button.
3. Use the PATTERN knob to set the retrigger mode.
PATTERN
5
Retrigger Mode
Off
Explanation
The slice pattern won’t be cued to the beginning
when the START/STOP pedal is pressed.
Pressing the START/STOP pedal cues the slice
pattern to the beginning.
6
On
4. Press the PEDAL MODE button.
The TEMPO indicator flashes three times, and the setting is saved to the SL-20’s
internal memory.
Once the setting is saved, and the SL-20 returns to its normal operating status.
Be sure not to turn off the power while the TEMPO indicator is flashing.
This setting remains stored even after the power is turned off.
*
*
*
With the factory default settings, Retrigger Mode is set to Off.
19
Returning Settings to Their Factory Defaults
You can return the following settings to their original factory defaults.
• Slice Pattern tempos
• Expression Pedal Function setting (p. 15)
• The tempo response when slice patterns are switched (p. 16)
• Output Mode setting (p. 17)
• Retrigger Mode setting (p. 19)
*
Carrying out the following procedure completely clears the content currently stored in the memory.
1. Switch off the power.
2. While holding down the OUTPUT MODE button, switch on the power.
The MONO indicator flashes.
*
Plugging into the INPUT R/MONO jack switches on the power.
3. Press the OUTPUT MODE button.
The MONO indicator flashes rapidly, the setting is stored in memory and the unit
returns to its normal state.
*
*
To cancel the setting change and the unit returns to its ordinary state, then before you press the
OUTPUT MODE button, operate the START/STOP pedal or TAP pedal.
Be sure not to turn off the power while the MONO indicator is flashing rapidly.
20
Troubleshooting
Power doesn’t come on
The POWER indicator has gone dim
❍
Is the guitar or keyboard connected correctly
to the INPUT R/MONO jack?
❍
Is the specified adaptor (PSA series; optional)
properly connected?
→
*
Check the connections again (p. 7–p.9).
The power will not turn on without a plug connected to
the INPUT R/MONO jack.
→
*
Never use any AC adaptor other than one specified for use
with the SL-20.
❍
→
*
Have the batteries run down?
Replace them with new batteries (p. 6).
The batteries included with the SL-20 are meant only to
confirm that the unit is functional at the factory.
❍
→
*
Have the batteries run down?
Replace them with new batteries (p. 6).
When the indicator goes dim or no longer lights
while the effect is on, it means that the batteries
must be replaced.
*
To reduce batteries consumption, be sure to disconnect
the plug connected to the INPUT R/MONO jack
whenever the unit is not in use.
*
The batteries included with the SL-20 are meant only to
confirm that the unit is functional at the factory.
❍
Is the specified AC adaptor (PSA series;
optional) connected correctly?
Check the connections again (p. 7–p.9).
Never use any AC adaptor other than the
adaptor specified.
Sound is distorted
❍
Are the EFFECT LEVEL knob, DIRECT LEVEL
knob, and ATTACK knob positioned correctly?
Sounds may become distorted when the knobs are
knob, DIRECT LEVEL knob, and ATTACK knob to
the sound is still distorted, lower the output level of
the device connected to the INPUT jacks.
→
→
No sound/volume is low
❍
→
❍
Is the other equipment connected correctly?
Check the connections again (p. 7–p.9).
Is the volume turned down on the connected
guitar, keyboard, effects processor, or other
device?
Check the settings on the connected equipment
(p. 7–p.9).
The volume level of the
instrument connected to the
INPUT jacks is too low
→
❍
Could you be using a connection cable that
contains a resistor?
❍
Could the ATTACK knob or DUTY knob be
turned down?
Use the ATTACK knob or DUTY knob to adjust
the level.
→
Use a connection cable that does not contain a resistor.
→
Cannot save recorded slice sound
→
Recorded slice sounds cannot be saved in the
SL-20’s internal memory.
❍
Could the connected expression pedal be in
the raised position?
→
When the expression pedal's function is set to
Direct Level, Effect Level, or Output Level the
effect sound is not output unless the pedal toe
is pressed down completely (p. 15).
Unable to overdub
→
You cannot overdub during recording.
Sounds input in stereo are output
in mono
❍
→
*
Have the batteries run down?
Replace them with new batteries (p. 6).
The batteries included with the SL-20 are meant only to
confirm that the unit is functional at the factory.
→
In order to apply effects suitable for the pattern,
some slice patterns mix the input, then output
this in mono.
Unable to switch output mode
→
The output mode setting is fixed at MONO
when the output is connected in mono.
21
Main Specifications
SL-20: Audio Pattern Processor
Nominal Input Level
-20 dBu
Input Impedance
1 MΩ
Connectors
INPUT jacks R/MONO, L (1/4 inch phone type)
OUTPUT jacks R/MONO, L (1/4 inch phone type)
EXP PEDAL jack (1/4 inch TRS phone type)
MIDI IN connector
DC IN jack (DC 9 V)
Nominal Output Level
-20 dBu
Output Impedance
1 kΩ
Recommended Load Impedance
10 kΩ or greater
Tempo
30–250 bpm
Maximum Recording Time
40 seconds
Power Supply
DC 9 V: Dry battery LR6/R6 (AA) type x 6, AC
Adaptor (PSA series)
Current Draw
110 mA (9 V max.)
*
Expected battery life under continuous use:
Carbon: 7 hours
Alkaline: 18 hours
These figures will vary depending on the actual
conditions of use.
Dimensions
173 (W) x 158 (D) x 57 (H) mm
Controls
START/STOP pedal
TAP pedal
6-13/16 (W) x 6-1/4 (D) x 2-1/4 (H) inches
Weight
EFFECT LEVEL knob
DIRECT LEVEL knob
BANK knob
1.1 kg / 2 lbs 7 oz (including batteries)
Accessories
Owner’s Manual
PATTERN knob
ATTACK knob
Leaflet (“USING THE UNIT SAFELY,”
“IMPORTANT NOTES,” and “Information”)
Dry battery R6 (AA) type (carbon) x 6
DUTY knob
TEMPO knob
Options
OUTPUT MODE button
PEDAL MODE button
AC Adaptor (PSA series)
Expression pedal (Roland EV-5)
Indicators
POWER indicator
*
0 dBu = 0.775 Vrms
(serves also as the battery check indicator)
START/STOP indicator
REC indicator
*
In the interest of product improvement, the specifications
and/or appearance of this unit are subject to change
without prior notice.
PLAY indicator
TAP indicator
MONO indicator
MIDI Implementation Version: 1.00
1. Receive Data
■ System Real-Time Message
FIXED indicator
RANDOM indicator
PING-PONG indicator
AUTO indicator
● Timing Clock
● Start
Status
Status
F8H
FAH
3D PANNNER indicator
3D CROSS indicator
LATCH indicator
MOMENTARY indicator
TEMPO indicator
*
Upon receiving the Start (FAH), the slice pattern
returns to the start of the pattern.
● Continue
Status
FBH
*
Upon receiving the Continue (FBH), the SL-20
continues to playback in sync with the external
MIDI device.
24
For EU Countries
UK
DE
FR
IT
ES
PT
NL
DK
NO
SE
FI
HU
PL
CZ
SK
EE
LT
LV
SI
GR
For EU Countries
For the USA
This product complies with the requirements of EMC Directive 2004/108/EC.
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.
*
G
6
0
2
7
1
3
1
-
0
1
*
G6027131R0 1RTC
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