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The JVM Series from Marshall is the most
comprehensive range of professional, all-valve
amplifiers ever offered. No other multi-channel,
multi-mode amplifier delivers the amazing all-valve tone
offered by the JVM at any price. Multiple, all-valve
voicings provide an amazing array of tones which are
accessible from the front-panel switches, MIDI or via the
revolutionary technology of the supplied footswitch.
Hailed as a breakthrough in amplification by the world’s
guitar press, the JVM Series offers a powerstage built
on the peerless EL34 designs responsible for the
legendary Marshall roar.
The JVM4 range delivers an enormous arsenal of valve
tone with vast flexibility, while the JVM2 range is its
logical evolutionary partner, delivering JVM’s
sophisticated functionality in a refined format.
Handbuilt with pride and meticulously tested in
Marshall’s world famous British factory, the JVM range
comes in a variety of models to suit every guitarist.
Outstanding Tone
The JVM Series uses a carefully designed, 4xECC83
pre-amp stage to generate the desired amount of gain, from
the cleanest, yet complex, clean imaginable to a vast palette
of overdrives that range from sophisticated and subtle to
explosive and extreme. Boasting a truly amazing array of
instantly switchable sounds, overflowing with harmonically rich
tones and responsive fluidity, every JVM mode exudes that
unmistakable Marshall sound and expands on it, effectively
offering multiple Marshalls in one easy-to-use package.
Ultimate Flexibility
Each totally independent JVM channel offers three
footswitchable modes which progressively add gain while
offering a complimentary tonal topology, making the JVM the
perfect amplifier for any situation.
The JVM’s layout is simple and uncompromising with
dedicated Gain, 3-band EQ, Volume and Reverb for each
channel. The Master section, featuring Dual Master Volumes,
Resonance and Presence, finishes the concise layout, making
each JVM a familiar “old friend” that’s intuitive to use. Even
with its programmability, multiple channels and modes plus
switchable Reverb, FX Loop and Master Volume, each JVM is
incredibly easy to navigate and understand.
Seamless, Silent Switching
The onboard logic ensures swift silent-switching and
remembers the position of each front panel switch in every
mode: Reverb (on/off), FX Loop (on/off) and Master Volume
(1 or 2). When returning to any mode, switch settings will be
exactly as you left them, even after you’ve powered the amp
down. This groundbreaking technology combined with
revolutionary footswitch technology, plus MIDI switching
capabilities, add even further to the JVM’s already incredible
flexibility.
Ultimate Control and Connectivity
Every JVM is supplied with a fully programmable footswitch.
This revolutionary, patent-pending technology allows single
front panel switching (SWITCH STORE) or entire set-ups
(PRESET STORE – Channel/Mode, Reverb, FX Loop, Master
Volume) to be simply assigned to any footswitch . . . or, even
cooler, a mix ‘n’ match of both modes.
Housed in a rugged metal casing with blank panels on its
surface which allow the user to label the pedal exactly as they
want, the JVM pedal has no restrictive factory set-ups or
functionality barriers, plus it’s a breeze to program. It’s
multi-coloured LEDs reflect every front panel switch status so
you know exactly where you are, in the heat of a
performance, without the need to glance at the amplifier itself.
The JVM’s MIDI In and Thru connection means it can easily
be integrated in a MIDI switching set-up, allowing you to store
and recall 128 amplifier set-ups and enabling your MIDI
effects board to easily control the amp. With its built-in
memory and switching options the possibilities are endless!
Studio Quality Reverb
The onboard, studio quality Digital Reverb is routed in parallel
(ensuring no digital degradation of the direct signal) and mixed
with the direct signal by means of a valve. Specifically
developed for the JVM, the Reverb retains signal clarity in its
tail and low noise, analogue switching allows it to decay
naturally when switching the effect off or changing channels.
In addition, when the Reverb is switched off, it is totally
removed from the circuit.
Effective Control
Each JVM boasts two FX Loops that live on its rear panel.
A footswitchable Parallel/Series Loop with Level and Mix
controls plus a Series Loop with a Bypass switch. Combine
the JVM with a MIDI FX processor and a MIDI footswitch and
the sky’s the limit!
Silence is Golden
When on Standby, the JVM’s emulated XLR output is fully
operational, allowing you to record in total silence,
a godsend for those late night recording sessions.
The Tone of the Cone
Speakers aren’t just there to move air, they’re an integral part
of an amplifier’s tonal voice. To that end, all JVM heads have
been designed to be sonically complimented by every single
one of Marshall’s vast array of 4x12” and 2x12” cabinet
offerings.
In the case of the 2x12” JVM combos, after exhaustive
testing of every speaker available, all agreed that the pairing of
a Marshall/Celestion ‘Heritage’ with a Marshall/Celestion
‘Vintage’ was the only way to go as the combination
produces a fantastic depth and breadth of sound while
maintaining a tight, musical response and a solid low-end
thump. In the case of the 50 Watt 1x12” combo, a Celestion
G12B delivers a full, wide sound that is much “bigger” than
the JVM215C’s compact size would suggest.
Building a Better Marshall
Every JVM is made at the Marshall factory in the heart of
England. Time-tested craftsmanship and construction are
combined with the latest advances in manufacturing
technology, ensuring world-class build quality and
roadworthiness.
Internally, the JVM circuitry and layout has been kept as
simple and logical as possible, ensuring the integrity of the
guitar tone and an incredibly low noise-floor for such a high
gain beast. Four, double-sided PCBs are used and
connections are kept to a minimum to ensure maximum
reliability. Only the best components are used to ensure
very high quality and all of the internal wiring and amplifier
assembly is performed by hand. Strict quality controls
ensure every unit made is worthy of the world-renowned
and respected white script Marshall logo. Meticulous valve
selection adds further to the all-important tone and
reliability that are both synonymous with the Marshall
legend.
JVM2 Series: New for 2008
Five brand-new, professional, all-valve 100 Watt and 50 Watt
2 channel amps, available in both head and combo formats.
Both channels offer three footswitchable modes, effectively
giving you six Marshall’s in one! Built-in England with pride and
armed with 16 controls and six switches, all five JVM2s are
easy to understand and are intuitive to use.
Add to this a footswitchable, studio quality Digital Reverb,
two footswitchable Master Volumes, two FX Loops,
a revolutionary, intelligent 4-way footswitch, MIDI switching
capability and the highest gain capability ever found in an
all-valve Marshall means each JVM delivers an incredibly
broad range of tones and switching options.
The five JVM2 models are:
JVM210H 100 Watt head
JVM205H 50 Watt head
JVM210C 100 Watt 2x12”combo
JVM205C 50 Watt 2x12” combo
JVM215C 50 Watt 1x12”combo
Universal JVM features:
• All-valve design with hand selected valves for premium
performance 5xECC83 and 4xEL34 (100 Watt) or
2xEL34 (50 Watt)
• Two totally independent, footswitchable channels:
Clean/Crunch and OD
• Six footswitchable modes: three per channel
• Two footswitchable Master Volumes
• Studio quality, footswitchable Digital Reverb
• Reverb controls for each channel
• Two FX Loops, one footswitchable
• Critically-acclaimed Speaker Emulated DI (XLR)
• Silent Recording capability
• Revolutionary 4-way footswitch with memory
• Seamless switching
• Five footswitch LEDs allow instant visualisation
• Built-in switch memory for each of the six modes
• MIDI programmable control for all switches
• Proudly built in England.
From shimmering 3-dimensional cleans to the dirtiest, yet
most articulate, grind imaginable and all tones in-between,
the JVM2 does it all. The sonic possibilities are endless!
JVM4 Series
JVM410H 100 Watt head
JVM410C 100 Watt 2x12” combo
Delivering every permutation of desirable valve tone from an
unbelievably harmonically-rich clean to massive, grinding
overdrives and soaring leads, the critically-acclaimed JVM4 is
the most comprehensive, professional, all-valve amplifier on
the planet. In addition to all the below, the JVM4 also delivers
the highest gain capability ever from an all-valve Marshall and
is definitely not for the fainthearted!
JVM4 Features
• All-valve design: 5xECC83 and 4xEL34
• Hand selected valves for premium performance
• Four totally independent, footswitchable channels
• 12 footswitchable modes: three per channel
• Two footswitchable Master Volumes
• Studio quality, footswitchable Digital Reverb
• Reverb controls for each channel
• Two FX Loops, one footswitchable
• Critically-acclaimed Speaker Emulated DI (XLR)
• Silent Recording capability
• Revolutionary 6-way footswitch with memory
• Seamless switching
• Seven footswitch LEDs allow instant visualisation
• Built-in switch memory for each of the six modes
• MIDI programmable control for all switches
• Proudly built in England
“Marshall’s all-tube JVM410 houses a virtual encyclopedia
of Marshall’s finest stock and modified rock tones,
including stout “Plexi” power, stock JCM800 crunch and
modified JCM800 high-gain insanity. It’s the ultimate
rocker’s Marshall . . .”
GUITAR WORLD, July 2007
Left: JVM210H head
Below: JVM210H panel
Bottom: JVM215C combo
Further models in the range:
JVM205H head
JVM205C combo
JVM210C combo
See rear for model specifications
Right: JVM410H head
Below: JVM410H panel
Bottom: JVM410C combo
Bottom left: 6-Way footswitch
See rear for model specifications