MG15HCFX Front Panel

TUNER
CLEAN / CRUNCH OD-1 / OD-2
TAP
(MANUAL) STORE MG15HCFX
GAIN BASS MIDDLE TREBLE REVERB VOLUME FX MASTER
FLA
R NG
SE

ER
A
PH
SPRING
STUDIO

LAY
DE
CH
INPUT POWER

O
US

R
0 10 0 10 0 10 0 10 0 10 OFF OCTAVE 0 10

ENGLISH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1. Input Jack Socket 11. FX Control

Jack input for your guitar. Use a good quality guitar Selects and adjusts one of five digital effects - Chorus,
cable (i.e. one thats screened/shielded) to help Phaser, Flanger, Delay and Octave.
prevent noise, interference and unwanted feedback.
12. Store Switch
2. Gain Control Stores the current amp settings into the current
Controls the amount of signal entering the pre-amp channel or to recall with the optional footcontroller.
and the amount of distortion created in the selected When in manual mode the Store button lights red.
channel.
From Jim Marshall 13. Master Control
3. Clean/Crunch Switch Controls the master volume of the amplifier.
I would personally like to congratulate you on your purchase of this Selects between Clean (green) and Crunch (red)
next-generation Marshall MG15HCFX amplifier. channels. 14. MP3 Line In Socket
Jam to your favourite MP3, CD or tape track by
As a musician myself, I fully understand what it takes to successfully 4. Bass Control connecting the line out or headphone output of your
achieve your goals and dreams. In addition to talent, dedication Turning up the Bass control will add warmth and low- player here. Adjust the volume of your player to
and a lot of hard work, you also need equipment that does exactly end depth to your sound. match that of your guitar and youve got the perfect
what you ask of it. Over the years I have witnessed many advances play-along practice system.
in amplifier technology and I wanted this 15 Watt MG15HCFX head 5. OD-1/OD-2 Switch
to take full advantage of such innovations. To this end, this state-of- Selects between OD-1 (green) and OD-2 (red) 15. Headphone Socket
the-art, solid-state amplifier had to meet the tonal expectations of channels. For use when silent practice is the order of the day.
the modern guitarist whilst also incorporating new and exciting Connection of headphones will automatically mute
digital technology in terms of both effects and memory. With this 6. Middle Control the internal speaker.
goal firmly in mind, I set my experienced R&D team the task of
designing a new range of affordable MG amplifiers that would not Adjusting the middle frequencies will vary the amount
only produce the tone youre looking for, but also offer an intuitive of body in your sound. 16. Power Switch
and totally programmable way of customising, storing and The power switch turns your amplifier on and off. A
accessing your favourite Marshall tones and features. 7. Treble Control channel switch will light up when your amplifier is
Increasing the Treble will make your sounds brighter turned on and none will be lit when the amplifier is
Like all the amplifiers in the new MG range, state-of-the-art and more cutting, turning it down will decrease your switched off.
manufacturing and stringent quality control procedures ensure that tones edge and make it sound softer as a result.
your new MG15HCFX meets the high standard of build you have Note: The specific mains input voltage rating that your
come to expect from all Marshall products. 8. Reverb Control amplifier has been built for is shown on the back
This control lets you add a lush digital reverb to the panel. Before connecting to the mains electricity
Whether this is your first ever Marshall, or is the latest addition to your selected channel, from a subtle hint to cavernous supply, always ensure that your amplifier is
arsenal of amps, the tone, flexibility and feel of this compact, rugged and all points in-between. Furthermore, there are two compatible with your electricity supply. If you have
unit is guaranteed to deliver the goods from bedroom to distinctly different sounding reverb types for you to any doubt, please get advice from a qualified
backstage! choose from Studio or Spring. Studio emulates the technician. Your Marshall dealer will help you in this
I wish you every success with your new Marshall MG15HCFX. sound of a studio plate reverb while, as expected, respect.
Welcome to the family... Spring emulates the sound of a classic spring reverb
unit. Please ensure the amplifier is switched off and
Yours Sincerely, unplugged from the mains electricity supply before
9. Volume Control being moved.
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
Dr. Jim Marshall OBE preset mode (pg 2). When using the optional
footcontroller, holding both the Tap switch and the
Store switch will activate the tuner.

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MG15HCFX Features
Channel Selection Pressing Store (12) will store the current settings into connection of a pair of headphones. When a jack is powering on the unit. The Clean/Crunch (3) and OD
The amplifier has 4 channels - Clean, Crunch, OD-1 & the selected channel. These can then be recalled inserted into the headphone socket the units (5) lights will light orange. You can then release the
OD-2. when using the unit in Preset mode. speaker is muted. Store switch (12).
When channel settings have been stored the current
Pressing the Clean/Crunch switch (3) selects between channel light (3 or 5) will stop flashing indicating the Power Resetting the amplifier will erase all user Channel
the Clean (Green Light) and Crunch (Red Light) preset has been saved. The Power switch (17) turns the amplifier on and off. If presets and all user Footcontroller settings, replacing
channels. current settings have not been stored they will be lost. them with the factory presets.
Reverb & FX
Pressing the OD-1/OD-2 switch (5) selects between the The amplifier provides two simultaneous digital Restoring Settings - WARNING ALL AMP &

ENGLISH
OD-1 (Green Light) and OD-2 (Red Light) channels. effects, Reverb (Studio or Spring) and one of five FX FOOTCONTROLLER SETTINGS WILL BE LOST
(Chorus, Phaser, Flanger, Delay or Octave) To restore the unit to factory settings (see handbook
When moving from an OD channel to a rear cover) you must hold the Store switch (12) while
Clean/Crunch channel, the unit remembers the last Reverb
channel you were in before leaving. E.g. If you have The Reverb control (8) sets the amount of signal sent
moved from the Crunch Channel to an OD channel to each of the two reverb options - Studio or Spring.
and you press the Clean/Crunch switch (3), the When the Reverb control (8) is set to 0 the reverb is
amplifier will revert back to the Crunch channel - switched off, the status of the reverb is also indicated

MG15HCFX Rear Panel

rather than starting again in the Clean channel. on the optional footcontroller.

Modes FX
The amplifier operates in two modes - Preset and The FX control is essentially split into five segments and
Manual. selects the type of FX and adjusts its associated
settings - except in the case of Octave which has a
To change between these two modes, you must hold single setting option. When the FX control is set to 0
the Tap switch (10) down for at least two seconds. the FX are switched off, the status of the FX is also
When in manual mode the Store switch (12) lights red indicated on the optional footcontroller.
and the selected channel light (3 or 5) will start to
flash. 0 FX Off
Chorus Speed increases and depth is reduced as
The amplifier will remember the last mode it was in knob is turned clockwise.
after power off and revert to it the next time it is Phaser Speed increases as knob is turned 1 2
powered on. clockwise.
Flanger Speed increases, feedback and depth are
Preset reduced as knob is turned clockwise. 1. Footcontroller Socket If you would like to use your MG15HCFX amplifier
This is the factory default operation of the amplifier. Delay Delay level is increased as knob turned Jack socket for the connection of the optional head with another speaker system (such as a full
clockwise. footcontroller. size 4x12" cabinet), ensure that the amplifier is
In Preset mode the position of all controls except Octave When the FX control is turned fully provided with a total load equal to or greater than
Master Volume (13) are stored within each channel. clockwise the Octave effect is engaged 2. Loudspeaker Outputs 8 ohms.
Each channel should be considered a preset. producing a simultaneous note a full octave Connect the two loudspeaker cabinets provided
lower than the one being played. to the speaker outputs using the speaker leads Always use a non-screened Marshall approved
Selecting a channel automatically recalls the settings supplied. speaker lead when connecting an extension
stored within the channel. Note: The physical position Tap Tempo cabinet to these units.
of the front panel controls, except Master Volume (13) The Tap Tempo switch (10) is used for the Delay effect
which is not storable, will now not match the actual only.
settings of the amplifier. All front panel switches will
automatically update. The Tap Tempo switch matches the delay time to the
time between two presses.
Altering a control will cause the associated
parameter to jump to the current physical position of The Tap Tempo LED flashes red at the
that control. selected/recalled delay time.

When a control is altered the selected channel light The number of repeats is reduced as the delay time
(3 or 5) will start to flash indicating that the current decreases.
preset has been altered. * EUROPE ONLY - Note: This equipment has been tested and found to comply with the requirements of the EMC Directive
If you change from a channel with delay to one (Environments E1, E2 and E3 EN 55103-1/2) and the Low Voltage Directive in the E.U.
To store the updated settings, push the Store switch without delay the effect will spill between channels. * EUROPE ONLY - Note: The Peak Inrush current for the MG15HCFX is 2.5 amps.
(12).
If you change from a channel with delay to a Note: 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.
If you select another channel without pressing Store channel with delay set to a different delay time the 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
(12) then any altered settings will be lost as the new delay effect will not spill between channels. harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
channel and its settings are recalled. this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
MP3 / Line In and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Manual The 3.5mm MP3 / Line In socket (14) allows the * Reorient or relocate the receiving antenna.
* Increase the separation between the equipment and the receiver.
In manual mode the amps settings always match connection of an external audio source e.g. MP3 or * Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
the physical positions of the controls. CD player. * Consult the dealer or an experienced radio/TV technician for help.

Changing channel only changes the channel, NO Headphone Output

Follow all instructions and heed all warnings
presets are recalled, NO other controls are altered. The 3.5mm Headphone socket (16) allows the
KEEP THESE INSTRUCTIONS !

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Footcontroller (optional - PEDL-90008)
1. Footcontroller When either a Channel preset or Footswitch preset Tuner
Each footswitch can be assigned a different stored function. has been altered the Digital Display (3) will begin to The Tuner can be accessed in two ways:
flash. The footcontroller will flash the relevant number
2. LED Status Panel if a Footswitch preset has been altered or will flash a By simultaneously pushing the Tap (10) and Store (12)
This always reflects the current status of the amplifier or tuner details: - if a Channel preset has been altered. switches on the front panel or by assigning the Tuner
to the footswitch. Note: On factory reset / first switch
CLN & OD: Current Channel Pressing only the Store switch at this point will on, the Tuner is already assigned to Footswitch
REV: Reverb On/Off overwrite the altered Channel or Footswitch preset. number 4.
FX: FX Section On / Off

ENGLISH
Ext FX: External FX Loop On/Off (MG50CFX & bigger) To store an altered Channel preset to the Footswitch Assigning the Tuner to a footswitch is carried out like
Damp: Damping Mode (MG50CFX & bigger) instead, hold the Store switch and while held down, any other Switch Store. To assign the Tuner to the
Tap: Tap Tempo speed. press your chosen Footswitch (1) - Just like a normal footswitch hold down the Tap (10) and Store (12)
Preset Store. switches and press the chosen footswitch you wish to
3. Digital Display assign it to. The Digital Display (3) will swirl to show that
This display indicates the various functions of the footcontroller. To store an altered Footswitch Preset to another the footswitch has been assigned. You can then
Footswitch hold the Store switch and while held release the footswitch and front panel switches.
down, press your chosen Footswitch (1) - Just like a
normal Preset Store. For all amplifiers, when entering Tuner mode the unit
3 2 mutes and Clean/Crunch (3) and OD-1/OD-2 (5)
Digital Display switches light yellow.
When recalling a footswitch preset, the Digital Display
(3) will indicate which footswitch number has been The Digital Display (3) indicates the closest current
pressed. note being played. The indicator dot on the lower
right hand corner shows if the current closest note
If a Channel preset has been recalled the Digital is #.
Display (3) will remain blank.
The LED Status Panel (2) is used to show how far away
When either a Channel preset or Footswitch preset from the closest note the current note being played
has been altered the Digital Display (3) will begin to is. When the central FX Status LED lights, it indicates
flash. The footswitch will flash the relevant number if a the correct tuning, with the others progressively
Footswitch preset has been altered or will flash a - if indicating the tuning is up to 50 cents up or down.
a Channel preset has been altered.
To exit the Tuner push any footswitch, the amplifier will
then exit returning to the settings before entering.

Footcontroller Factory Settings The Digital Display (3) will swirl to show that the
Footswitch 1: Clean/Crunch Switch footswitch has been assigned. You can then release
Footswitch 2: OD-1/OD-2 Switch the footswitch and front panel switch.
Footswitch 3: Tap Tempo Switch
Footswitch 4: Tuner Preset Store
To assign a preset to a Footswitch (1), select the
Programming required channel and modify the front panel controls
The footswitch can be programmed to store front if required, press and hold the Store switch on the
panel switches (Switch Store) or complete presets front panel and while held down, press your chosen
(Preset Store). Footswitch (1).

Switch Store The Digital Display (3) will swirl to show that the
To assign a front panel switch to a Footswitch location footswitch has been assigned. You can then release
(1), press and hold the front panel switch and while the footswitch and Store switch.
held down press the Footswitch (1) you wish to assign
it to. Footcontroller Presets are independent of the
dedicated Channel presets stored within the
amplifier. This allows you to create a number of
presets based on the same channel/pre-amp setting.

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 Marshall Factory Presets

Clean: Pure guitar tone with a touch of chorus + reverb

green

Crunch: Classic rock tone paired with spring reverb.

red

OD1: Pure and brutal, with a hint of studio reverb to fatten.

green

OD2: A soaring arena lead with studio reverb and delay

red

Marshall Amplification plc

Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England.
Tel : +44 (0)1908 375411 Fax : +44 (0)1908 376118
www.marshallamps.com
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.

BOOK-91007 / 06 / 11