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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.

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.

MG100DFX Rear Panel Features

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MG100HDFX Rear Panel Features

 

 

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1. MAINS INPUT Connector

 

3. FX RETURN

 

 

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.

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.

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 4Ω’), 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.

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.

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Marshall Amplification MG100HDFX, MG100DFX owner manual FX Return, FX Send, Footswitch
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MG100DFX, MG100HDFX specifications

Marshall Amplification has long been synonymous with rock and roll, and the MG100DFX and MG100HDFX models exemplify the brand's commitment to delivering quality tone and versatility for guitarists at all levels. These solid-state amplifiers integrate innovative technologies while maintaining the rugged construction that Marshall amplifiers are known for.

One of the standout features of the MG100DFX and MG100HDFX is their powerful 100-watt output, providing a punchy and full-bodied sound that can fill any venue. Both models utilize a durable speaker system, typically featuring a 12-inch speaker, that effectively reproduces a wide spectrum of tones, from clean and crisp highs to deep, resonant lows. This versatility makes them suitable for various musical genres, particularly rock, metal, and blues.

The front panel of the MG100DFX and MG100HDFX includes multiple channels, allowing guitarists to switch between clean and overdriven sounds seamlessly. The added Gain control enables users to dial in just the right amount of distortion, giving them the freedom to experiment with their tone. Furthermore, each channel is equipped with a 3-band EQ, providing comprehensive control over the bass, mid, and treble frequencies, enhancing the overall sound sculpting capabilities.

These models also feature an in-built effects loop and digital effects, including reverb, delay, and chorus, which can enhance the standard amp sounds by incorporating atmospheric tones. The MG100DFX model often includes a more elaborate effects section, allowing players to add depth and dimension to their performances without the need for additional pedals.

Another notable characteristic of these amplifiers is their headphone output and an auxiliary input. This feature enables practice in silence, allowing musicians to jam along with their favorite tracks without disturbing others. It’s particularly useful for those who want to hone their skills or compose new music quietly.

In summary, Marshall's MG100DFX and MG100HDFX amplifiers deliver outstanding performance, combining robust power with a range of tonal options. Their user-friendly interface, built-in effects, and solid construction make them ideal for both practice and live performances. As a testament to Marshall's legacy, these amplifiers continue to inspire and empower guitarists, providing them with the essential tools to achieve their sonic visions. Whether you're a novice or an experienced player, the MG100DFX and MG100HDFX are certainly amps worth considering for anyone looking to enhance their sound.
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