MG
SERIES
30DFX
EMULATED
FOOTSWITCHING
2
CHANNELS
CD INPUT
EQ
DIGITAL FX
BASS
CONTOUR
TREBLE
CLEAN
OVERDRIVE
LINE OUT
Owners Manual
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WARNING! - Important safety instructions
WARNING: This apparatus must be earthed!
A. PLEASE read this instruction manual carefully before switching on.
!
B. ALWAYS use the supplied mains lead, if a replacement is required please contact your
authorised Marshall Dealer.
Note: Closed back equipment with non-detachable mains cord.
When the equipment is not in use or is being transported, the mains
cord should be gathered and retained under the top strap handle to
prevent damage. See diagram.
From Jim Marshall
C. NEVER attempt to by-pass the fuses or fit ones of the incorrect value.
D. DO NOT attempt to remove the amplifier chassis, there are no user serviceable parts.
I would like to thank you personally for selecting
our new MG30DFX combo.
E. Refer all servicing to qualified service personnel.
As a musician myself I fully understand the
necessity of achieving the right tone and feel to help
inspire you to reach your full creative potential as a
guitarist – whether you are an aspiring beginner or a
more advanced player. With this in mind I set my
experienced R&D team the task of designing a new
range of affordable MG amplifiers, that truly capture
the essence of the Marshall sound.
Servicing is required when the apparatus has been damaged in any way, such as when the
power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally
or has been dropped.
F. NEVER use an amplifier in damp or wet conditions. No objects filled with liquids should be placed
on the apparatus
G. ALWAYS unplug this apparatus during lightning storms or when unused for long periods of time.
Utilising new technologies, some of which were
H. PROTECT the power cord from being walked on or pinched particularly at plugs,
developed for our critically acclaimed AVT range, the new MG Series raises the standard for what can
be expected from a value-for-money range of guitar amplifiers and defines a new benchmark. For
example, the amp section of your MG30DFX combo boasts FDD (Frequency Dependent Damping) –
a radical new feature that is exclusive to Marshall Amplification and accurately mimics the way an all-
valve amplifier interacts with a loudspeaker. As a result of FDD, your new MG30DFX will give you a
sound and feel never before thought possible in such an affordable, non-valve amp.
convenience receptacles and at the point where they exit from the apparatus.
I. DO NOT switch the amplifier on without the loudspeaker connected.
➲
Note: This equipment has been tested and found to comply with the requirements of the EMC
directive (Environments E1, E2 and E3 EN 55103-1/2) and the Low Voltage directive in the E.U.
The DFX (Digital Effects) featured in the MG30DFX are custom-voiced by our in-house digital
effects experts. Each one of the four effects on offer (Reverb, Delay, Chorus and Flange) has been
designed to emulate the much sought after warmth and feel of analogue effects, but in a highly
flexible digital format. Furthermore, a wide range of variations for each effect are quite literally at your
fingertips – merely tweaking the two Digital FX controls (Preset/Adjust & FX Level) on the front panel,
will give rise to sounds that range from subtle to radical, while always remaining both natural and
musical.
➲
➲
EUROPE ONLY - Note: The Peak Inrush current for the MG30DFX is 5 amps.
CAUTION: Any changes or modifications not expressly approved by the party responsible for
compliance may void the users authority to operate the equipment.
➲
Note: It is recommended that all audio cables used to connect to the MG30DFX are of a high
quality screened type. These should not exceed 10 metres in length.
➲ WARNING: Always ensure free movement of air around the amplifier!
Like all the amplifiers in the new MG range, state-of-the-art manufacturing and stringent quality
control procedures ensure that this combo meets the high standard of build you have come to expect
from all Marshall products. The MG30DFX was completely designed and engineered at my
Headquarters in Milton Keynes, England.
USA ONLY - DO NOT defeat the purpose of the polarised or grounding type plug. A polarised
plug has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety. When the
provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Whether the MG30DFX is your first ever Marshall or is the latest addition to your arsenal of amps,
the tone, flexibility and feel of this compact, rugged combo will deliver the goods – from bedroom to
backstage!
Follow all instructions and heed all warnings
KEEP THESE INSTRUCTIONS !
I wish you every success with your new Marshall. Welcome to the family…
Yours Sincerely,
1
2
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MG30DFX Front Panel Features
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1. FOOTSWITCH jack
8. Overdrive Channel GAIN control
13. Digital FX PRESET / ADJUST control
Channels on the MG30DFX can be switched via
the front panel CHANNEL SELECT switch (2) or
via an optional footswitch. This jack socket is for
the connection of the footswitch (P801).
Turning up the Gain control will increase the
amount of preamp distortion generated in the
Overdrive channel. Low Gain control settings will
produce classic rock and blues tones. Crank this
control for fat and aggressive sounds that are
perfect for soloing or hard rock and nu-metal riffs.
This control serves a dual purpose. Not only does it allow you to select one of the four types of
effects on offer (Reverb (RVB), Delay (DLY), Chorus (CHR) or Flange (FLG)), it also allows you to
adjust a parameter as you sweep it through each of the four effect segments. The parameter you
can adjust for each of the four effect segments is shown below:
2. CHANNEL SELECT switch
Adjustable
Parameter
This push switch allows you to change between
the amp’s two channels, Clean and Overdrive, via
the front panel. When this switch is ‘out’, the
Clean channel is engaged, pushing it ‘in’ switches
to the Overdrive channel.
Effect
Description
9. Overdrive Channel BASS control
Turning up this control will add extra low-end
‘thump’ to high gain riffs and natural sounding
warm depth to lower gain crunch tones. Using the
Bass control in conjunction with the FDD switch
(15) will allow you to dial in the exact amount of
low-end ‘thump’ and tightness you are looking for.
Reverb (RVB)
Decay Time
A natural sounding Reverb that never gets
harsh or grainy. Short Reverb times produce a
plate-type effect while longer Reverb times result
in much larger sounding hall-type effects.
(from short to long as you
turn the Preset/Adjust
control clockwise through
the RVB segment)
Note: When the Overdrive channel is selected,
the OD LED (7) will light up red.
3. INPUT jack
Use a good quality guitar cable (i.e. one that’s
screened/shielded) to plug your guitar in here.
10. Overdrive Channel CONTOUR control
Delay (DLY)
Chorus (CHR)
Flange (FLG)
Delay Time
Short Delay Times will automatically have less
repeats for ‘groovy’ surf and rockabilly tones.
Increasing the Delay Time automatically increases
the number of repeats for a much more
atmospheric, ‘stadium’ effect.
(from short to long as you
turn the Preset/Adjust
control clockwise through
the DLY segment)
This highly effective tone control works by
radically modifying the mid-range (body) of your
sound. The tone can range from traditional and
woody sounding (control set at 0), to balls-to-the-
wall (control set midway), to aggressive,
‘scooped’ and modern (turned up to 10)…and all
points in-between.
4. Clean Channel VOLUME control
When the Clean Channel is selected, this
control adjusts its volume. At low settings the
sound will be very clean with a pleasing, bell-like
ring. Turning this control above half way will
introduce a desirable, bluesy distortion as the
power amplifier stage is driven into ‘crunch mode’.
Speed
At slow Speeds a mellow phase-like sweep
occurs. As the Speed is increased a more
traditional chorus effect is heard. At maximum
Speed, a psychedelic vibrato results.
(from slow to fast as you
turn the Preset/Adjust
control clockwise through
the CHR segment)
11. Overdrive Channel TREBLE control
This important knob controls the aggressive top-
end ‘sizzle’ you have on high gain sounds, and
the ‘cut’ and definition of lower gain crunch tones.
Experimenting with this control will help you to
dial in your own signature tones on your
MG30DFX.
5. Clean Channel BASS control
Turning up the Bass control will add warmth
and low-end depth to your clean sound. The Bass
control can be used in conjunction with the FDD
switch (15) to produce deep sounding, valve-like
clean tones that are well defined yet still full and
round.
Speed
At slow Speed settings the amount of
regeneration is automatically increased for huge
‘jet engine-like’ sweeps. As the speed is
increased the regeneration decreases to produce
a lush, natural sounding flange effect. When the
Speed is maxed out, a fast vibrato results.
(from slow to fast as you
turn the Preset/Adjust
control clockwise through
the FLG segment)
12. Overdrive Channel VOLUME control
This control adjusts the volume of the Overdrive
channel. The louder you make this channel, the
‘looser’ your amp will sound and feel – especially
with the FDD switch (15) engaged. This
behaviour is exactly what a good all-valve
amplifier does and is a result of our proprietary
FDD circuitry.
6. Clean Channel TREBLE control
Increasing the Treble will make your clean
sounds brighter and more cutting.
7. OD LED
When illuminated, this LED indicates that the
Overdrive Channel has been selected.
3
4
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Suggested Settings
14. Digital FX LEVEL control
17. EMULATED LINE OUT &
HEADPHONES jack
MG
This controls how much of the chosen effect
gets mixed in with your unaffected (dry) guitar
tone. Want to hear more of the DFX you’ve just
dialed in? Then simply turn this control up!
Here follows four sample settings to act as starting
points from which to develop your own sounds.
SERIES
30DFX
This jack can be used as either an Emulated
Line Out or as a Headphone output. This means
you can use this socket to connect your
MG30DFX directly to your multi-track recording
machine and you’ll get a great speaker emulated
guitar sound direct to disk or tape. Alternatively
you can plug your headphones in here for a killer
speaker emulated sound! Using this jack
automatically mutes your MG30DFX’s internal
speaker allowing you to record or practice in
‘silence’. For this very reason, this jack will be
your neighbour’s favourite feature on your
MG30DFX – along with the Power Switch (18),
of course!
N.B. Volume should be adjusted to taste.
15. FDD (Frequency Dependent Damping)
switch.
Marshall’s proprietary FDD circuit accurately
mimics the way an all-valve amplifier interacts
with the loudspeaker and adds a width and depth
to your sound which has been unachievable in
an affordable solid state amplifier…until now! To
engage FDD simply press this switch in.
16. CD IN jack
If you want to jam to your favourite CD or tape,
merely connect the headphone output of your
CD or tape player here, adjust the CD/tape
player’s volume to match that of your guitar and
you’ve got the perfect ‘play-along’ practice
system.
18. POWER Switch & LED
Off
The power switch turns your amplifier on and
off. The LED will be lit when your amplifier is on
and will not be lit when the amplifier is switched
off.
HELPFUL HINT: for ‘silent’ recording merely
plug an unconnected jack plug into the
headphone socket and you’ll disconnect the
MG30DFX’s internal speaker.
Note: Before connecting to the mains
electricity supply, always ensure that your
electricity supply is compatible with your
amplifier, as detailed on the rear panel.
Please ensure the amplifier is switched off and
unplugged from the mains electricity supply
before being moved.
On
On
On
5
6
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Technical Specification
Especificaciones técnicas
Technische Daten
MG
SERIES
30DFX
Caractéristiques techniques
Power Output
30W RMS into 4Ω
Potencia de salida
Ausgangsleistung
Puissance de sortie
30W RMS sobre 4Ω
30W RMS an 4Ω
30W RMS sous 4 ohms
30W RMS / 4Ω
Main Guitar • Input Impedance
1MΩ
Impedancia de entrada principal de guitarra
Guitar • Input Eingangsimpedanz
Impédance d'entrée
1MΩ
1MΩ
1MΩ
1MΩ
CD Input • Input impedance
3.3
kΩ
Impedancia de entrada de CD
CD Input • Eingangsimpedanz
Impédance d'entrée CD
3.3kΩ
3.3kΩ
3.3kΩ
3.3kΩ
Emulated Output • Level
+4
dBV
Nivel de salida de línea simulada
Emulated Output • Ausgangspegel
Niveau de sortie
+4dBV
+4dBV
+4dBV
+4dBV
Weight
9.6
kg
Peso
9.6kg
9.6kg
9.6kg
9.6kg
Gewicht
Poids
Size (mm) Width, Height, Depth
476mm x 408mm x 240mm
Tamaño (mm)
Maße (mm)
Taille (mm)
476mm x 408mm x 240mm
476mm x 408mm x 240mm
476mm x 408mm x 240mm
476mm x 408mm x 240mm
Marshall Amplification plc
Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England
Tel : [01908] 375411 Fax : [01908] 376118
Whilst the information contained herein is correct at the time of publication, due to our policy of constant improvement
and development, Marshall Amplification plc reserve the right to alter specifications without prior notice.
230V
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