Marshall Amplification JVM Series specifications JVM2 Series New for, JVM4 Series

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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

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!

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 4x12and 2x12cabinet offerings.

In the case of the 2x12JVM 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 1x12combo, 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.

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

Right: JVM410H head

Below: JVM410H panel

Bottom: JVM410C combo

Bottom left: 6-Way footswitch

See rear for model specifications

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Contents JVM4 Specifications JVM2 SpecificationsJVM2 Series New for JVM4 Series

JVM Series specifications

Marshall Amplification is synonymous with rock music, and its JVM series epitomizes this legacy by merging classic tone with contemporary versatility. Introduced in 2007, the JVM series has gained a reputation for its comprehensive range of features and tonal possibilities, making it a top choice for both amateur and professional guitarists.

One of the standout features of the JVM series is its four channels: Clean, Crunch, OD1, and OD2. This arrangement allows players to seamlessly transition from pristine clean tones to heavy, saturated overdrive. Each channel offers independent control over gain, treble, middle, bass, and volume, providing a vast tonal palette. The flexibility of these channels caters to various genres, from blues to metal, enabling guitarists to craft their unique sound.

The JVM series also incorporates advanced footswitching capabilities, enabling players to switch between channels and effects effortlessly during performances. This system includes a MIDI capability, allowing for integration with other MIDI-controlled devices, adding another layer of flexibility for professional setups.

In terms of technology, the JVM series employs Marshall's innovative "Digital Power Scaling," which allows players to achieve that iconic Marshall tone at different volumes. This means you can crank up the amp for rich, dynamic distortion without disturbing the peace, making it ideal for home practice and recording environments.

Another noteworthy characteristic is the JVM's effects loop, which is designed to preserve the integrity of the original tone while using external effects. This feature ensures that whether you employ vintage pedals or modern multi-effects units, the amp will handle them gracefully.

Aesthetically, the JVM series embodies the classic Marshall look. With its iconic black and gold finish and illuminated control panel, it exudes a sense of rock history. The series is available in both heads and combos, catering to various size preferences and playing needs.

In addition, the JVM series features a 5-way EQ that enhances mid-range frequencies, allowing players to shape their sound dynamically. The inclusion of a built-in reverb provides an additional layer of depth, making it perfect for creating atmospheric tones during performance.

To sum up, the Marshall Amplification JVM series stands out for its remarkable versatility, iconic tone, and user-friendly features. With its combination of innovative technologies and classic design, it remains a favorite among musicians looking to elevate their sound while honoring the rich legacy of rock music. Whether for live performances or studio recordings, the JVM series continues to be a go-to choice for guitarists worldwide.