Marshall MG10 MG Gold Amplifier Owner’s Manual

MG12 MG15F.X, MG30Qc MG50FX OWNER’S MANUAL

INTRODUCTION

Congratulations on your purchase of this MG Gold amplifier from Marshall Amplification.
The MG provides modern Marshall tones for the player who is on the go.
With your MG you can easily dial in storable sounds and effects including sparkling clean, rich driven blues, rock tone and heavy distorted metal settings. Every element from voicing through to the speaker has been carefully designed to give you flexibility at your fingertips.
From the punchy MG 10 to the powerful MG 50, each MG Gold amplifier is quick to setup and delivers time and time again.
Whether you are practicing at home or gigging on the road, the MG Gold not only looks good, it won’t let you down.
We hope you enjoy your MG Gold amplifier.
– The Marshall Team

WARNING! IMPORTANT SAFETY INSTRUCTIONS

WARNING:
Before going any further, make sure that your amplifier is compatible with your mains electricity supply. If you have any doubt, please seek help from a qualified technician – your Marshall dealer can help you in this respect.
MAINS INPUT & FUSE:
The specific mains input voltage rating that your amplifier has been manufactured for is indicated on the rear panel of the amplifier. MG50FX: Your amplifier is provided with a detachable mains (power) lead, which should be connected to the MAINS INPUT  socket on the rear panel of the amplifier. The correct value and type of mains fuse is specified on the rear panel of each amplifier.
NEVER attempt to bypass the fuse or fit one of the incorrect value or type.
TRANSPORTING YOUR EQUIPMENT:
Please ensure that your amplifier is switched off, unplugged from the mains electricity supply and that all removable cables have been disconnected from your equipment before attempting to move it.

IMPORTANT SET UP INFORMATION:
WARNING:
Failure to select the correct impedance may damage your amplifier.
If connecting a speaker cabinet make sure that you use a proper speaker cable. Never use a screened (shielded) guitar cable for this purpose.

1. Ensure that the MAINS (power) switch is set to the OFF position.
2. Connect the supplied mains (power) lead into the MAINS INPUT first and then into the mains electricity supply.
3. Ensure that the VOLUME controls on the front panel are set to zero.
4. Plug your guitar into an INPUT jack socket.
5. Turn the front panel MAINS switch to the ON position.
6. Turn the VOLUME up to your preferred level and your amplifier is ready to play.

COMPLIANCE STATEMENT (MG15FX, MG30FX & MG50FX)

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 modifications 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)

PLEASE READ THIS MANUAL CAREFULLY BEFORE PLUGGING IN.
FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS.
KEEP THESE INSTRUCTIONS.

MG10 FRONT PANEL FUNCTIONS

1. INPUT
   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. VOLUME – CLEAN CHANNEL
   This control adjusts the volume of the Clean Channel.

3. CHANNEL SWITCH
   This switch allows you to change between the amp’s two channels, Clean and Overdrive, via the front panel. When the LED is green, the Clean channel is engaged. When the LED is red, the Overdrive channel is engaged.

4. GAIN
   This control sets the operating level of the pre-amp. Simply turn up the Gain control until the required amount of distortion is achieved.

5. VOLUME – OVERDRIVE CHANNEL
   This control adjusts the volume of the Overdrive channel. The louder this channel is set, the ‘looser’ the amplifier will sound and feel.

6. CONTOUR
   This highly effective tone control works by modifying the mid-range (body).

7. HEADPHONE OUT
   For use when silent practice is the order of the day. Connection of headphones will automatically mute the internal speaker.

8. MP3 IN
   If you want to jam to your favourite track, connect 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.

9. MAINS
   The power switch turns your amplifier on and off. The Channel switch will light up when your amplifier is turned on and will not be lit when the amplifier is switched off.
   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.
   Warning: Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved.

MG15FX & MG30FX FRONT PANEL FUNCTIONS

1. INPUT JACK SOCKET
   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. GAIN 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. BASS CONTROL
   Turning up the Bass control will add warmth and low-end depth to your sound.

5. OD-1/OD-2 SWITCH
   Selects between OD-1 (green) and OD-2 (red) channels.

6. MIDDLE CONTROL
   Adjusting the middle frequencies will vary the amount of body in your sound.

7. TREBLE CONTROL
   Increasing the Treble 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 digital reverb to the selected channel, from a subtle hint to cavernous and all points in-between. Furthermore, there are two distinctly different sounding reverb types for you to choose from – Studio or Spring.
   Studio emulates the sound of a studio plate reverb while, as expected, Spring emulates the sound of a classic spring reverb unit.

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
    foot controller, holding both the Tap switch and the Store switch will activate the tuner.

11. FX CONTROL
    Selects and adjusts one of five digital effects – Chorus, Phaser, Flanger, Delay and Octave.

12. STORE SWITCH
    Stores the current amp settings into the current channel or to recall with 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 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. FOOTCONTROLLER SOCKET
    ¼” Jack socket for the connection of the optional footcontroller (PEDL-90008) – see page 8.

16. HEADPHONE SOCKET
    For use when silent practice is the order of the day. Connection of headphones will automatically mute the internal speaker.

17. POWER SWITCH
    The power switch turns your amplifier on and off. A channel switch will light up when your amplifier is turned on and none will be lit when the amplifier is switched off.
    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.

MG15FX & MG30FX OVERVIEW

CHANNEL SELECTION
The amplifier has 4 channels – Clean, Crunch, OD-1 & OD-2.
Pressing the Clean/Crunch switch (3) selects between the Clean (Green Light) and Crunch (Red Light) channels.
Pressing the OD-1/OD-2 switch (5) selects between the OD-1 (Green Light) and OD-2 (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 digital effects, Reverb (Studio or Spring) and one of five FX (Chorus, Phaser,
Flanger, Delay or Octave).
REVERB
The Reverb control (8) sets the amount of signal sent to either one of the two

MG50FX FRONT PANEL FUNCTIONS

1. INPUT JACK SOCKET
   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. GAIN 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. BASS CONTROL Adds warmth and low-end depth to your sound.

5. OD-1/OD-2 SWITCH
   Selects between OD-1 (green) and OD-2 (red) channels.

6. MIDDLE CONTROL
   Varies the amount of body in your sound.

7. TREBLE CONTROL
   Increasing the Treble 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. REV SWITCH
   Switches the reverb effect on and off.

9. REVERB CONTROL
   This control lets you add a lush digital reverb to the selected channel, from a subtle hint to cavernous and all points in-between. Furthermore, there are two distinctly different sounding reverb types for you to choose from – Studio or Spring. Studio  emulates the sound of a studio plate reverb while, as expected, Spring emulates the sound of a classic spring reverb unit.

10. VOLUME CONTROL
    Controls the volume of the selected channel.

11. FX SWITCH
    Switches the FX section (FX and Delay) on and off.

12. FX CONTROL
    Selects and adjusts one of five digital effects – Chorus, Phaser, Flanger, Vibe and Octave.

13. TAP SWITCH
    Matches the delay FX time to the time between two pushes. The LED flashes at selected delay time.

14. DELAY CONTROL
    Controls the amount of signal sent to any one of four selectable delay types – Hi-Fi, Tape, Multi or Reverse.

15. EXT FX SWITCH
    Switches the external FX Loop on and off.

16. MASTER CONTROL
    Controls the master volume of the amplifier.

17. DAMPING (MANUAL) SWITCH
    Switches the power amp damping between classic amp feeling (LED off) and modern response (LED on). Holding down the Damping switch for longer than 2 seconds switches the amp between manual and preset mode.
    When using the foot controller, holding both the Damping switch and the Store switch will activate the tuner.

18. HEADPHONE / LINE OUT SOCKET
    3.5mm headphones / Line out.

19. STORE SWITCH
    Stores the current amp settings into the current channel to recall with the foot controller. When in manual mode the Store button lights red.

20. POWER SWITCH
    The power switch turns your amplifier  on and off. A channel switch will light up when your amplifier is turned on and none will be lit when the amplifier is switched off.

MG50FX REAR PANEL FUNCTIONS

1. MAINS INPUT CONNECTOR
   Your amp is provided with a detachable mains (power) lead, which is connected here. The specific mains input voltage rating that your amplifier has been built for is indicated on the back panel. Before connecting for the first time, please 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.
   The correct value of mains fuse located in the small drawer at the bottom of the mains socket is specified on the rear panel of the amplifier. The drawer contains a space for a spare fuse. NEVER attempt to bypass the fuse or fit one of the incorrect value!

2. FOOTCONTROLLER SOCKET
   Jack socket for the connection of the footcontroller.

3. LOUDSPEAKER OUTPUT(S) SOCKET
   The MG50CFX combo has 1 loudspeaker output.
   Always use a non-screened Marshall approved speaker lead when connecting an extension cabinet to these amplifiers.

4. MP3 LINE IN SOCKET
   Jam to your favourite 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.

5. RETURN SOCKET
   Connect to the output of an external effects processor or pedal here.

6. SEND SOCKET
   Connect to the input of an external effects processor or pedal here.

FOOTCONTROLLER STOMPWARE PEDL-90008 (OPTIONAL)

1. FOOTSWITCH
   Each footswitch can be assigned a different stored function.

2. DIGITAL DISPLAY
   This display indicates the various functions of the footcontroller.

3. LED STATUS PANEL
   This always reflects the current status of the amplifier or tuner details: CLN & OD: Current Channel
   REV: Reverb On/Off
   FX: FX Section On / Off
   Ext FX: External FX Loop On/Off (MG50FX)
   Damp: Damping Mode (MG50FX)
   Tap: Tap Tempo speed

FOOTCONTROLLER FACTORY SETTINGS
Footswitch 1: Clean/Crunch Switch
Footswitch 2: OD-1/OD-2 Switch
Footswitch 3: Tap Tempo Switch
Footswitch 4: Tuner
PROGRAMMING
The footswitch can be programmed to store front panel switches (Switch Store) or complete presets (Preset Store).
SWITCH STORE
To assign a front panel switch to a Footswitch location (1), press and hold the front panel switch and while held down press the Footswitch (1) you wish to assign it to.
The Digital Display (3) will swirl to show that the footswitch has been assigned.
You can then release the footswitch and front panel switch.

PRESET STORE
To assign a preset to a Footswitch (1), select the required channel and modify the front panel controls if required, press and hold the Store switch on the front panel and while held down, press your chosen Footswitch (1).
The Digital Display (3) will swirl to show that the footswitch has been assigned. You can then release the footswitch and Store switch.
Foot controller 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.
When either a Channel preset or Footswitch preset has been altered the Digital Display (3) will begin to flash.
The foot controller will flash the relevant number if a Footswitch preset has been altered or will flash a “-“ if a Channel preset has been altered.

MARSHALLAMPS.COM
Marshall Amplification 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 Amplification Plc reserves the right to alter specifications without prior notice.
BOOK-90033-v.02

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