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DSL100HR &
DSL40CR
OWNER’S MANUAL
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INTRODUCTION
DSL 100/40 OVERVIEW
Congratulations on your purchase of this Dual Super Lead (DSL) amplier from
Marshall Amplication.
The DSL provides the legendary Marshall tone, allowing you to express your distinct
playing style and attitude. From clean to distorted overdrives, the DSL is a versatile
all valve amp that allows you to easily dial in the sound you desire.
This DSL amplier not only delivers the tone you expect from a Super Lead amplier
it is also packed with an array of features such as an effects loop, power reduction
and studio quality digital reverb. Right out of the box your DSL provides you with
the functionality you need to take your sound from rehearsal to the stage with
condence.
Your DSL amplier has been designed specically for those who need the full rich
tone of a valve amp. This makes the amp ideal for a live environment, studio or at
home thanks to the power reduction system.
We hope you enjoy performing, practicing and recording with your DSL amplier.
- The Marshall Team.
The DSL 100 Head and 40 Combo feature the same functions. The combo is loaded
with a 12” G12 V-type speaker chosen for its ability to deliver exceptional tone and
exibility.
The DSL features two foot switchable channels: CLASSIC GAIN and ULTRA GAIN.
The CLASSIC GAIN channel delivers sparkling clean sounds through to the more
aggressive break-up of a Marshall JCM800 amplier. The ULTRA GAIN channel
provides even more distortion and break-up for players looking for higher gain tones
from their amplier.
Both channels share a passive three-band EQ, with BASS, MIDDLE and TREBLE
controls. The EQ section also features Tone Shift, which when activated recongures
the pre-amp mid frequencies making DSL ideal for contemporary metal tones,
especially when combined with higher gain settings.
The DSL features professional quality digital REVERB and a series FX LOOP. The LOW
POWER function adds a further dimension to the DSL sound, giving you rich valve
tone at an ear-friendly volume.
For the most demanding players, the DSL 40 Combo and DSL 100 Head feature MIDI
compatibility meaning outboard MIDI equipment can access all the features needed
to perform.
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PLEASE READ THIS MANUAL CAREFULLY
BEFORE PLUGGING IN.
FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS.
KEEP THESE INSTRUCTIONS.
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.
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 the 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.
CAUTION: Any changes or modications not expressly approved by the party
responsible for compliance could void the users authority to operate the equipment.
This device complies with CAN ICES-3(B)/NMB-3(B)
COMPLIANCE STATEMENT
WARNING! IMPORTANT SAFETY INSTRUCTIONS
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WARNING:
Before going any further, make sure that
your amplier is compatible with your
mains electricity supply. If you have any
doubt, please seek help from a qualied
technician – your Marshall dealer can
help you in this respect.
MAINS INPUT & FUSE:
The specic mains input voltage
rating that your amplier has been
manufactured for is indicated on the
rear panel of the amplier. Your amplier
is provided with a detachable mains
(power) lead, which should be connected
to the MAINS INPUT socket on the rear
panel of the amplier (Rear Panel Function
#26). The correct value and type of
mains fuse is specied on the rear panel
of the amplier.
NEVER attempt to bypass the fuse or t
one of the incorrect value or type.
TRANSPORTING YOUR EQUIPMENT:
Please ensure that your amplier is
switched off, unplugged from the mains
electricity supply and all removable
cables have been disconnected from
your equipment before attempting to
move it.
IMPORTANT SET UP INFORMATION:
1. When using the DSL20HR, or the
DSL20CR with an extension speaker
cabinet(s), make sure that the
speaker cabinet(s) is connected to
the correct impedance loudspeaker
jack socket(s) on the rear panel of the
amplier. See the LOUDSPEAKERS
guide in this manual for specic
information regarding impedance
matching (Rear Panel Function #33).
WARNING:
Failure to do the above may damage
your amplier. When connecting a
speaker cabinet make sure that you use
a proper speaker cable. Never use a
screened (shielded) guitar cable for this
purpose.
2. Ensure that the POWER switch is
set to the OFF position (Front Panel
Function #25).
3. Ensure the OUTPUT switch is in the
STANDBY position (Front Panel
Function #24).
4. Connect the supplied mains (power)
lead into the MAINS INPUT (Rear
Panel Function #26) rst and then
into an electricity outlet.
5. Ensure that the volume controls on
the front panel are set to zero (Front
Panel Functions #19 & #21).
6. Plug your guitar into the INPUT jack
socket (Front Panel Function #1).
7. Switch the amplier ON using the
POWER switch, wait for a few
minutes and then switch the
OUTPUT switch to either the LOW
or HIGH position.
8. Turn the front panel POWER switch
on and wait for a few minutes
before going to point 9.
9. Turn the selected channel volume
up to your preferred level and your
amplier is ready to play.
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FRONT PANEL FUNCTIONS
1
DSL40CR FRONT PANEL
DSL100HR FRONT PANEL
2 3 4 5 6 7 8 9 10 11 12 13
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1. INPUT
Input jack socket for your guitar cable.
Use a good quality screened/shielded
guitar cable to help prevent noise
interference.
CLASSIC GAIN CHANNEL
2. GAIN
Controls the gain level for the CLASSIC
GAIN channel. As the amount of gain
increases, so will the distortion level in
your sound.
3. MODE STATUS LED
This LED lights green to indicate that
CLEAN mode is selected and red to
indicate CRUNCH mode is selected.
4. VOLUME
Controls the volume level of the
CLASSIC GAIN channel.
5. CLEAN/CRUNCH
Press to select CLEAN or CRUNCH
mode. The CLASSIC GAIN channel’s two
modes take your sound from clean to
overdriven tones.
ULTRA GAIN CHANNEL
6. GAIN
Controls the gain level for the ULTRA
GAIN channel. As the amount of gain
increases, so will the distortion level in
your sound.
7. MODE STATUS LED
This LED lights green to indicate that
OD1 mode is selected and red to
indicate OD2 mode is selected.
8. VOLUME
Controls the volume level of the ULTRA
GAIN channel.
9. OD1/OD2
Press to select OD1 or OD2 mode. The
ULTRA GAIN channel’s two modes go
from an open, high gain overdrive to a
mid-boosted tone with even higher gain
possibilities.
NOTES ON USING CHANNELS AND MODES:
The channel is automatically selected when
a mode switch is pressed: Clean/Crunch or
OD1/OD2.
When you select a channel its previous
mode, FX loop and master volume settings
will be recalled.
The channel can also be selected using
the supplied 2-way footswitch. When the
2-way footswitch is connected, the front
panel mode switch (Clean/Crunch or OD1/
OD2) will be active only on the selected
channel.
Use the optional 6-way footswitch (PEDL-
91005) to switch between channels, modes
and more – see the DSL FOOTSWITCHING
section in this manual for further info.
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FRONT PANEL FUNCTIONS (CONT.)
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EQUALISATION SECTION
10. TREBLE
Controls the higher frequency content
of your sound. Turning clockwise will
increase the highs making the sound
brighter and more crisp.
11. MIDDLE
Controls the middle frequency of your
sound. Turning clockwise adds girth.
Turning anticlockwise reduces the
middle frequencies ‘scooping’ your
sound – this is accentuated when used in
conjunction with Tone Shift.
(Front Panel Function #13).
12. BASS
Controls the amount of lower frequency,
or bottom-end, in your sound. Turning
clockwise will increase the bottom-end
making the sound fuller.
13. TONE SHIFT
Tone Shift recongures the preamp EQ
network adding a new dimension to
tonal shaping.
Tonal Note: The preamp EQ network is
dynamic and highly interactive. Please note
that because of this, altering the setting of
one control can change the way that the
other controls behave – experiment to nd
your sound.
14. PRESENCE
Controls the amount of higher
frequencies of your sound. Turn
clockwise to add crispness and bite
for a more cutting tone. PRESENCE
is a power-stage function and acts
independently of the preamp EQ
controls.
15. RESONANCE
Controls the amount of lower
frequencies in your sound. Turning
this control clockwise adds a resonant
bass boost, increasing bottom-end.
RESONANCE is a power-stage function
and acts independently of the preamp
EQ controls.
REVERB SECTION
16. REVERB CLASSIC
Controls the REVERB level of the
CLASSIC GAIN Channel.
17. REVERB ULTRA
Controls the REVERB level of the ULTRA
GAIN Channel.
MASTER VOLUME SECTION
18. MASTER SELECT
This switches between MASTER 1 and
MASTER 2.
Note: You can switch between MASTER 1
and MASTER 2 using the optional 6-way
PEDL-91005 footswitch.
19. MASTER 1
Controls the overall volume level of the
amplier when selected.
20. MASTER STATUS LED
This LED lights green to indicate that
MASTER 1 is selected and red to indicate
MASTER 2 is selected.
21. MASTER 2
Controls the overall volume level of the
amplier when selected.
22. LOOP STATUS LED
This LED lights red to indicated that the
FX LOOP is On. It is unlit when the FX
LOOP in Off.
23. LOOP ON/OFF
This switch activates and deactivates the
FX LOOP.
Note: FX LOOP On/Off is footswitchable
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FRONT PANEL FUNCTIONS (CONT.)
The DSL100HR and DSL40CR are
supplied with a 2-way footswitch (PEDL-
90012) for channel select and FX loop
on/off.
There is also a 6-way footswitch
(PEDL-91005) available that enables
you to fully control your DSL100HR or
DSL40CR during performance. You can
select each mode: CLEAN, CRUNCH,
OD1 or OD2, as well as select MASTER
1 or MASTER 2, and switch the FX LOOP
On/Off.
DSL FOOTSWITCHING
using the supplied 2-way footswitch or the
optional 6-way footswitch.
24. OUTPUT
This three position rocker switch
combines STB (standby) and HIGH/
LOW output power functions. The
output stage and power control for this
amplier has been designed to deliver
the optimum tonal performance at
all power levels. The HIGH and LOW
output functions allow the user to
choose between two congurations of
the internal power supply. These two
congurations give the choice between
two output power levels, but ensure that
the output valves behave in the same
way for both. This means the amplier
can be put into LOW power mode
without compromising on tone.
HIGH: This is the 100 Watt setting for the
DSL100HR and the 40 Watt setting for the
DSL40CR.
STB (standby): This is used in conjunction
with the mains POWER switch (Front Panel
Function #25). When powering up, always
switch mains POWER on rst, leaving
the OUTPUT switch in the STB (standby)
position. Standby mode should also be
used to mute the amp during breaks in
performances to avoid stress to the valves
of the amplier.
LOW: This is the 50 Watt setting for
the DSL100HR and the 20 Watt for the
DSL40CR.
25. POWER
Mains power ON/OFF switch.
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26. MAINS INPUT
Connects the amplier to the mains
electricity supply.
Note: The MAINS INPUT socket has an
integrated fuse compartment. Ensure that
the value of a replacement fuse matches the
labelling on the amplier rear panel. You
MUST ALWAYS switch the amplier OFF
and disconnect it from the mains electricity
supply before attempting to access the fuse
compartment. If in doubt, contact your
Marshall dealer.
27. MIDI IN
Connect your external MIDI device to
the MIDI IN socket.
Note: The amplier only accepts incoming
data and it is not able to send any MIDI
commands.
You can set the channel, the state of the
LOOP and MASTER volume via MIDI
messages.
MIDI commands allow the remote
control of some front panel functions
(refer to MIDI implementation chart at
the end of this manual).
The MIDI receive channel is factory-set
to channel 1. In order to set a different
channel, press and hold the Loop On/Off
switch (Front Panel Function #23) while
powering up the amplier to activate
MIDI waiting mode. The LED will ash
until a valid MIDI command is received.
The MIDI receive channel will be set to
the channel of that command.
To select MIDI OMNI receive, put the
amplier into MIDI waiting mode and
REAR PANEL FUNCTIONS
DSL40CR REAR PANEL
DSL100HR REAR PANEL
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then press and hold the Master Select
switch (Front Panel Function #18) until
its LED ashes.
Note: When the 2-way footswitch is
connected the amplier will not respond to
any MIDI messages.
28. FX LOOP RETURN
Connect the output of an external FX
pedal or processor.
29. FX LOOP SEND
Connect the input of an external FX
pedal or processor.
30. F/S
Connect the supplied 2-way footswitch
or the optional 6-way footswitch here.
31. AUDIO IN
Connect an external device here to
practice with or to jam along to music.
32. EMULATED OUT
Emulated line level output for
headphones or connection to a mixer.
The DSL is equipped with a high quality
emulated output using Softube-designed
studio cabinet emulation. This ensures
that your headphone and output signal
from this socket provide the best
possible tone for practice or recording.
Note: Using EMULATED OUT does not omit
the need for a speaker load to be connected
to the amplier (Rear Panel Function #33).
Note: For silent recording via EMULATED
OUT set the OUTPUT switch to STB (Front
Panel Function #24).
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33. LOUDSPEAKERS
There are ve speaker outputs available.
They are labelled according to the
intended impedances:
• 1 x 16 OHM: connect a single 16 Ohm
speaker cabinet to this jack.
• 1x 8 OHM or 2 x 16 OHM: connect a
single 8 Ohm speaker cabinet or two 16
Ohm speaker cabinets.
• 1 x 4 OHM or 2 x 8 OHM: connect a
single 4 Ohm speaker cabinet or two 8
Ohm speaker cabinets.
WARNING: Although the amplier has ve
speaker outputs, never attempt to connect
more speaker cabinets than rated. The safe
combinations are: 1 x 16 Ohm, 1 x 8 Ohm, 2 x
16 Ohm, 1 x 4 Ohm or 2 x 8 Ohm only. Any other
speaker cabinet conguration may stress the
power amplier section and in extreme cases may
lead to valve and/or output transformer failure.
NEVER use DSL100HR or DSL40CR without a
speaker load.
REAR PANEL FUNCTIONS (CONT.)
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MIDI IMPLEMENTATION CHART
FUNCTION TRANSMITTED RECOGNISED REMARKS
MIDI Channels N Y (1-16) Default receive channel 1
Note Numbers N N
Program Change N Y (0-127) Amp channels mapped to
every four PC values
Bank Select Responce N
Modes Supported:
Mode 1: Omni-On, Poly N
Mode 2: Omni-On, Mono N
Mode 3: Omni-Off, Poly N
Mode 4: Omni-Off, Mono N
Multi Mode N
Note-On Velocity N N
Note-Off Velocity N N
Universal System Exclusive N N
Manufacture System Exclusive N N
FUNCTION # TRANSMITTED RECOGNISED REMARKS
13 N Y LOOP
0 = Off
1 = On
2-127=Toggle State
14 N Y Master
0 = Off
1 = On
2-127=Toggle State
1. BASIC INFORMATION
FUNCTION TRANSMITTED RECOGNISED REMARKS
MIDI Clock N N
2. MIDI TIMING AND SYNCHRONIZATION
MIDI IMPLENATION CHART CONTROL NUMBER INFORMATION
MANUFACTURER: Marshall
VERSION: 1.1
MODEL: DSL 40 & DSL 100
DATE: 24.08.17
MANUFACTURER: Marshall
VERSION: 1.1
MODEL: DSL 40 & DSL 100
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BOOK-90032
Marshall Amplication plc, Denbigh Road,
Bletchley, Milton Keynes, MK1 1DQ, England.
Telephone: +44 (0) 1908 375411 | Fax: +44 (0) 1908 376118
Registered in England. Registered Number: 805676
Whilst the information contained herein is correct at the time of publication, due to its policy of constant improvement
and development, Marshall Amplication plc reserves the right to alter specications without prior notice.
MARSHALLAMPS.COM
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