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1. FOOTSWITCH jack
Channels on the MG30DFX can be switched via
the front panel CHANNEL SELECT switch (2) or
via an optional footswitch. This jack socket is for
the connection of the footswitch (P801).
2. CHANNEL SELECT switch
This push switch allows you to change between
the amp’s two channels, Clean and Overdrive, via
the front panel. When this switch is ‘out’, the
Clean channel is engaged, pushing it ‘in’ switches
to the Overdrive channel.
Note: When the Overdrive channel is selected,
the OD LED (7) will light up red.
3. INPUT jack
Use a good quality guitar cable (i.e. one that’s
screened/shielded) to plug your guitar in here.
4. Clean Channel VOLUME control
When the Clean Channel is selected, this
control adjusts its volume. At low settings the
sound will be very clean with a pleasing, bell-like
ring. Turning this control above half way will
introduce a desirable, bluesy distortion as the
power amplifier stage is driven into ‘crunch mode’.
5. Clean Channel BASS control
Turning up the Bass control will add warmth
and low-end depth to your clean sound. The Bass
control can be used in conjunction with the FDD
switch (15) to produce deep sounding, valve-like
clean tones that are well defined yet still full and
round.
6. Clean Channel TREBLE control
Increasing the Treble will make your clean
sounds brighter and more cutting.
7. OD LED
When illuminated, this LED indicates that the
Overdrive Channel has been selected.
8. Overdrive Channel GAIN control
Turning up the Gain control will increase the
amount of preamp distortion generated in the
Overdrive channel. Low Gain control settings will
produce classic rock and blues tones. Crank this
control for fat and aggressive sounds that are
perfect for soloing or hard rock and nu-metal riffs.
9. Overdrive Channel BASS control
Turning up this control will add extra low-end
‘thump’ to high gain riffs and natural sounding
warm depth to lower gain crunch tones. Using the
Bass control in conjunction with the FDD switch
(15) will allow you to dial in the exact amount of
low-end ‘thump’ and tightness you are looking for.
10. Overdrive Channel CONTOUR control
This highly effective tone control works by
radically modifying the mid-range (body) of your
sound. The tone can range from traditional and
woody sounding (control set at 0), to balls-to-the-
wall (control set midway), to aggressive,
‘scooped’ and modern (turned up to 10)…and all
points in-between.
11. Overdrive Channel TREBLE control
This important knob controls the aggressive top-
end ‘sizzle’ you have on high gain sounds, and
the ‘cut’ and definition of lower gain crunch tones.
Experimenting with this control will help you to
dial in your own signature tones on your
MG30DFX.
12. Overdrive Channel VOLUME control
This control adjusts the volume of the Overdrive
channel. The louder you make this channel, the
‘looser’ your amp will sound and feel – especially
with the FDD switch (15) engaged. This
behaviour is exactly what a good all-valve
amplifier does and is a result of our proprietary
FDD circuitry.
MG30DFX Front Panel Features
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13. Digital FX PRESET / ADJUST control
This control serves a dual purpose. Not only does it allow you to select one of the four types of
effects on offer (Reverb (RVB), Delay (DLY), Chorus (CHR) or Flange (FLG)), it also allows you to
adjust a parameter as you sweep it through each of the four effect segments. The parameter you
can adjust for each of the four effect segments is shown below:
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Reverb (RVB)
Effect Description
Adjustable
Parameter
Decay Time
(from short to long as you
turn the Preset/Adjust
control clockwise through
the RVB segment)
A natural sounding Reverb that never gets
harsh or grainy. Short Reverb times produce a
plate-type effect while longer Reverb times result
in much larger sounding hall-type effects.
Delay (DLY)
Delay Time
(from short to long as you
turn the Preset/Adjust
control clockwise through
the DLY segment)
Short Delay Times will automatically have less
repeats for ‘groovy’ surf and rockabilly tones.
Increasing the Delay Time automatically increases
the number of repeats for a much more
atmospheric, ‘stadium’ effect.
Chorus (CHR)
Speed
(from slow to fast as you
turn the Preset/Adjust
control clockwise through
the CHR segment)
At slow Speeds a mellow phase-like sweep
occurs. As the Speed is increased a more
traditional chorus effect is heard. At maximum
Speed, a psychedelic vibrato results.
Flange (FLG)
Speed
(from slow to fast as you
turn the Preset/Adjust
control clockwise through
the FLG segment)
At slow Speed settings the amount of
regeneration is automatically increased for huge
‘jet engine-like’ sweeps. As the speed is
increased the regeneration decreases to produce
a lush, natural sounding flange effect. When the
Speed is maxed out, a fast vibrato results.