MG15FXMSDM Features
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Channel Selection
The amplifier has 4 channels - Clean, Crunch, OD1 &
OD2. The MG15FXMSDM features four factory preset
channels programmed by Dave Mustaine and Andy
Sneap. Details of the individual control and voice
settings can be found on page 40.
Factory presets
Clean Absolution
Symphony Chorus
New Wave of British Heavy Metal
Holy Solo
Pressing the Clean/Crunch switch (3) selects between
the Clean (Green Light) and Crunch (Red Light)
channels.
Pressing the OD switch (5) selects between the OD1
(Green Light) and OD2 (Red Light) channels.
When moving from an OD channel to a Clean/Crunch
channel, the unit remembers the last channel you were
in before leaving. E.g. If you have moved from the
Crunch Channel to an OD channel and you press the
Clean/Crunch switch (3), the amplifier will revert back to
the Crunch channel - rather than starting again in the
Clean channel.
Modes
The amplifier operates in two modes - Preset and
Manual.
To change between these two modes, you must hold
the Tap switch (10) down for at least two seconds.
When in manual mode the Store switch (12) lights red
and the selected channel light (3 or 5) will start to flash.
The amplifier will remember the last mode it was in after
power off and revert to it the next time it is powered on.
Preset
This is the factory default operation of the amplifier.
In Preset mode the position of all controls except
Master Volume (13) are stored within each channel.
Each channel should be considered a preset.
Selecting a channel automatically recalls the settings
stored within the channel. Note: The physical position of
the front panel controls, except Master Volume (13)
which is not storable, will now not match the actual
settings of the amplifier. All front panel switches will
automatically update.
Altering a control will cause the associated parameter to
jump to the current physical position of that control.
When a control is altered the selected channel light (3
or 5) will start to flash indicating that the current preset
has been altered.
To store the updated settings, push the Store switch
(12).
If you select another channel without pressing Store
(12) then any altered settings will be lost as the new
channel and its settings are recalled.
Manual
In manual mode the amp’s settings
always match the physical positions of the controls.
Changing channel only changes the channel, NO
presets are recalled, NO other controls are altered.
Pressing Store (12) will store the current settings into
the selected channel. These can then be recalled when
using the unit in Preset mode.
When channel settings have been stored the current
channel light (3 or 5) will stop flashing indicating the
preset has been saved.
Reverb & FX
The amplifier provides two simultaneous effects,
Reverb and one of four FXs (Chorus, Phaser, Flanger
or Delay)
Reverb
The Reverb control (8) sets the amount of signal sent to
the reverb section - allowing the reverb to spill between
channels as different presets are recalled. When the
Reverb control (8) is set to ‘0’ the reverb is switched off,
the status of the reverb is also indicated on the optional
footcontroller.
F
FX
X
The FX control is split into four segments and selects
the type of FX and adjusts its associated settings.
When the FX control is set to ‘0’ the FX are switched
off, the status of the FX is also indicated on the optional
footcontroller.
Tap Tempo
The Tap Tempo switch (10) is used for the Delay effect
only.
The Tap Tempo switch matches the delay time to the
time between two presses.
The Tap Tempo LED flashes red at the
selected/recalled delay time.
The number of repeats is reduced as the delay time
decreases.
If you change from a channel with delay to one without
delay the effect will spill between channels.
If you change from a channel with delay to a channel
with delay set to a different delay time the delay effect
will not spill between channels.
0
Chorus
Phaser
Flanger
Delay
FX Off
Speed increases and depth is reduced as
knob is turned clockwise.
Speed increases as knob is turned
clockwise.
Speed increases, feedback and depth are
reduced as knob is turned clockwise.
Delay level is increased as knob turned
clockwise.
E
N
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MG15FXMSDM Front Panel
1. Input Jack Socket
Jack input for your guitar. Use a good quality guitar
cable (i.e. one that’s screened/shielded) to help prevent
noise, interference and unwanted feedback.
2. Distortion Control
Controls the amount of signal entering the pre-amp and
the amount of distortion created in the selected channel.
3. Clean : Crunch Switch
Selects between Clean (green) and Crunch (red) channels.
4. Low Control
Turning up the Low control will add warmth and low-end
depth to your sound.
5. OD Switch
Selects between OD1 (green) and OD2 (red) channels.
6. Mid Control
Adjusting the middle frequencies will vary the amount of
body in your sound.
7. High Control
Increasing the High will make your sounds brighter and
more cutting, turning it down will decrease your tone’s
edge and make it sound softer as a result.
8. Reverb Control
This control lets you add a lush reverb to the selected
channel, from a subtle hint to cavernous and all points
in-between.
9. Volume Control
Controls the volume of the selected channel.
10. Tap (Manual) Switch
Matches the delay FX time to the time between two
pushes. The LED flashes at the selected delay time.
Holding down the Tap switch for longer than 2 seconds
switches the amp between manual and preset mode.
When using the optional footcontroller, holding both the
Tap switch and the Store switch (12) will activate the
tuner.
11. FX Control
Selects and adjusts one of four effects - Chorus,
Phaser, Flanger & Delay.
12. Store Switch
Stores the current amp settings into the current channel
or into the optional footcontroller. When in manual mode
the Store button lights red.
13. Master Control
Controls the master volume of the amplifier.
14. MP3 Line In Socket
Jam to your favourite MP3, CD or tape track by
connecting the line out or headphone output of your
player here. Adjust the volume of your player to match
that of your guitar and you’ve got the perfect ‘play-
along’ practice system.
15. Headphone socket(stealth Mode)
For use when silent practice is the order of the day.
Connection of Stealth Mode will automatically mute the
internal speaker.
16. Power Switch
The power switch turns your amplifier on and off. A
channel switch will light up when your amplifier is
turned on.
Note:
The specific mains input voltage rating that your
amplifier has been built for is shown on the back panel.
Before connecting to the mains electricity supply,
always ensure that your amplifier is compatible with
your electricity supply. If you have any doubt, please get
advice from a qualified technician. Your Marshall dealer
will help you in this respect.
Please ensure the amplifier is switched off and
unplugged from the mains electricity supply before
being moved.
overdrive
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