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Rear panel features – Marshall Amplification MG100DFX User Manual

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17. Digital FX LEVEL control

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
selected? Then simply turn this control up!

Important Footswitch Note: Using the

supplied two-way footswitch, you can switch the
selected DFX on/off.

18. REVERB LEVEL control

This control lets you add a lush Reverb to your

sound – from a subtle hint to cavernous and all
points in-between. Designed by our in-house
digital experts, this custom designed Marshall
Reverb is highly musical and always sounds
natural – it never gets harsh or ‘fake’ sounding.

Important Footswitch Note: The supplied

footswitch does NOT switch the Reverb on/off.

19. EFFECTS LOOP MIX control

When using the FX Loop on the rear panel, the

FX Mix allows you to dial in the desired amount of
effected signal into your overall sound. Turning
the control fully clockwise will result in a fully
effected sound, i.e. no dry signal and turning the
control fully anticlockwise will result in a fully dry
sound.

20. MASTER VOLUME control

As its name suggests, the Master Volume

control determines the overall volume of your
amplifier. So after setting-up the relative volume
of Channels 1 & 2 the overall level can be
adjusted without affecting your all-important
Clean/Overdrive balance.

21. FDD (Frequency Dependent Damping)
switch

Marshall’s proprietary FDD circuit accurately

mimics the way an all-valve amplifier interacts
with the loudspeaker(s) 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.

22. 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.

23. EMULATED LINE OUT &
HEADPHONES jack

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 amp
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!

TIP: How to practise or record in ‘silence’: The

Clean Channel GAIN control (2) and the
Overdrive Channel VOLUME control (15) will
control the level of the headphone and line out.

The speaker output can be adjusted

independently using the MASTER VOLUME
control (20). Setting the MASTER VOLUME
control (20) to zero will allow silent recording or
practice.

24. POWER Switch & LED

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.

Note: Before connecting to the mains electricity

supply, always ensure that your amplifier is
compatible with your electricity supply, as detailed
on the rear panel.

Please ensure the amplifier is switched off and

unplugged from the mains electricity supply
before being moved.

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MG100DFX Rear Panel Features

MG100HDFX Rear Panel Features

1. MAINS INPUT Connector

The MG amplifier is provided with a detachable

mains (power) lead which is connected here.
The specific mains input voltage rating that your
amplifier requires is clearly indicated on the
back panel. Before connecting to the mains for
the first time please make sure that your
amplifier is compatible with your electricity
supply.

2. LOUDSPEAKER Output(s)

MG100DFX Combo
There is one speaker jack socket on the

MG100DFX (marked ‘INTERNAL 4

’), this is

where the MG100DFX power amplifier is
connected to the internal Celestion loudspeaker.

MG100HDFX Head
The MG100HDFX Head has two speaker

sockets for connection to either 1 or 2 external
cabinets. Ensure the total load impedance is
equal to, or exceeds, 4 ohms.

Always use a non-screened Marshall

approved speaker lead when connecting an
extension cabinet to these units.

3. FX RETURN

This is where you connect the OUTPUT of the

effects processor you are using in the effects
loop.

4. FX SEND

If you want to use an external effects

processor in your amp’s built-in Parallel effects
loop, this is the jack you connect to the INPUT
of the unit you are using.

5. FX LEVEL Switch

Selects the level to match your external effects

units (+4dB for rack units and -10dB for pedals).

6. FOOTSWITCH

Connect the supplied two-way footswitch here.

Its left button (marked Channel) enables you to
change channels and its right button (marked
DFX) allows you to switch the DFX Section
on/off.

Important Footswitch Note: The supplied

footswitch does NOT switch the Reverb on/off.

This manual is related to the following products: