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Marshall Amplification JMD100 User Manual

Marshall Amplification JMD100
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76
Pre-amp Topology: ECC83 pre-amplifier stage
feeding into a gain control with treble boost followed by
an ECC83 pre-amplifier clipping stage then into an
ECC83 gain stage directly coupled to an ECC83
cathode follower, then to a classic Marshall three band
EQ.
Crunch 7. Deep
Pre-Amp: Haze40
Settings: Normal Channel, Boost and Bright switches
engaged.
A satisfyingly warm tone resembling the
Marshall Haze40 with both its Boost and
Bright switches engaged. Produces a
darker overdrive with a smooth edge and
enhanced bottom-end clout.
Pre-amp Topology: ECC83 pre-amplifier stage with
a slight mid boost feeding into an ECC83 gain stage
directly coupled to an ECC83 cathode follower, then to
a classic Marshall three band EQ.
Crunch 8. Full
Pre-Amp: 1974
The 1974 makes a return here as a full-fat rhythm tone
with extra clarity in the mids. It effortlessly sustains
chords, while individual notes still remain clear.
Pre-amp Topology: This pre-amp is also a
combination of a 1974 pre-amp and power amp used as
a pre-amp stage: ECC83 pre-amplifier stage with
original 1974 tone (Treble) and gain control followed by
a newly designed EQ where the Mid control is set at
650Hz and the Bass is controlled using a variable
capacitor. This is fed into the original 1974 phase
splitter and its EL84 push pull power amplifier with no
feedback, feeding this time into a 1960 speaker load.
OVERDRIVE SECTION 9-12
Overdrive 9. Classic
Pre-Amp: JMP-1
Settings: OD2
The JMD:1's forefather, the JMP-1 provides the tonal
backbone to this pre-amp option, which is based on the
latter's OD2 channel. This setting delivers an
aggressive and focussed sound, yet remains smooth
and fluid with distinctive mids.
Pre-amp Topology: The signal is fed into a distortion /
booster circuit then into an ECC83 pre-amplifier stage
followed by an ECC83 gain stage driving a three band
EQ.
Overdrive 10. Modern
Pre-Amp: JVM410H
Settings: Crunch Channel in Red Mode
More gain within your face mids, courtesy of the JVM
Crunch channel topology set to its highest gain stage.
A full, forgiving and tonally balanced sound that
possesses that inherent JVM cutting edge.
Pre-amp Topology: ECC83 gain stage followed by a
mild treble boosting and tuned bass tone shaping
circuitry with the gain control feeding into an ECC83
configured as a clipper, then into an ECC83 gain stage
directly coupled to a cathode follower driving a classic
Marshall three band EQ.
Overdrive 11. Deep
Pre-Amp: Bluesbreaker II + JCM800 2203
Settings: Bluesbreaker II in Boost mode with Drive
set to max, plus a custom filter linked to
bass control and 2203 topology.
Another fantastic tonal experiment, bringing together
the raw might of the JCM800 2203 and Bluesbreaker
FX pedal set to Boost. A custom filter enhances the
bass and reduces the mids, with the blend of ’80s roar
and ’70s bottom-end delivering hot-rodded scooped
tones as they should be.
Pre-amp Topology: A boost pedal driving a custom
filter plugged into an ECC83 pre-amplifier stage
followed by a treble boosting tone shaping circuitry and
the gain control feeding into an ECC83 configured as a
clipper, then into an ECC83 gain stage directly coupled
to a cathode follower driving a classic Marshall three
band EQ.
Overdrive 12. Detuned
Pre-Amp: Mode Four
Settings: OD2 Channel Scoop on with Tone Matrix
set to 3
This thoroughly aggressive and modern metal tone has
been created from the Mode Four's menacing OD2
channel. Its intimidating character is aided further by a
lowered mid frequency response in its EQ section, ideal
for down-tuned/baritone guitars.
Pre-amp Topology: A high headroom gain booster
followed by a gain control driving a cascaded double
ECC83 gain stage followed by a lowered mid frequency
Marshall three band EQ.
LEAD SECTION 13-16
Lead 13. Deep
Pre-Amp: Bluesbreaker II + Haze40
Settings: Bluesbreaker II in Boost mode with Drive
set to max, plus Haze Normal Channel with
Boost and Bright switches on.
A 'boosted' Bluesbreaker pedal and a Haze40 combo with
Boost and Bright switches engaged have been combined
to produce a truly deep and growling tone. The warm
sustain of this pre-amp makes it ideal for soaring solo
tones.
Pre-amp Topology: A boost pedal driving an ECC83
pre-amplifier stage followed by a gain control, then into an
ECC83 gain stage directly coupled to a cathode follower
driving a classic Marshall three band EQ.
Lead 14. Solid
Pre-Amp: Original Guv'nor Distortion pedal
Based on the original and highly-prized Guv'nor stomp
box, this pre-amp setting delivers a throaty, pedal driven
overdrive. Its unique mid character and resonant high
frequency gives it both distinctive teeth and a ghostly
howl, making it ideal for riding feedback.
Pre-amp Topology: A classic Marshall overdrive pedal
with 2 gain stages, diode clipping and an enhanced mids
three band EQ, as a full gain pre-amp.
Lead 15. Classic
Pre-Amp: Bluesbreaker II + JCM2000 DSL100
Delivering the 'tone shifted' Crunch of the revered
JCM2000 DSL Series and enhanced again with
Bluesbreaker pedal topology, this pre-amp option creates
expansive and cutting 90s lead tones.
Pre-amp Topology: An ECC83 pre-amplifier stage
followed by a gain control into a cascaded double ECC83
clipping stage, then into an ECC83 gain stage directly
coupled to a cathode follower driving a tone shifted
Marshall three band EQ.
E
xt FX
1
Modern
Full -2
Classic - 3
Natural - 4
Vintage - 5
Classic - 6
D
eep - 7
F
ull - 8
Classic
9
1
0 - Modern
1
1 - Deep
12 - Detuned
13 - Deep
14 - Solid
15 - Classic
16 - Modern
1
Full -
2
-
3
-
7
1
1
1
1
15
16 - M
od
JMD:1 Front Panel continued
1 3
4 5
5
6
2 2 7
9 10
8
ENGLISH
3-6. Classic continued . . .
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Marshall Amplification JMD100 Specifications

General IconGeneral
BrandMarshall Amplification
ModelJMD100
CategoryMusical Instrument Amplifier
LanguageEnglish

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