Bedienungsanleitung Marshall JVM 2 Channel (Seite 3 von 9) (Englisch)

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Overview

I. Channels, Modes & Memory

Presenting the 2-channel, 100W and 50W

all-valve JVM amplifiers. Their 2 channels boast

3 modes, giving you a total of 6 different modes

to choose from - each with its own unique gain

structure. Even though their front panel contains

a total of 16 control knobs and 6 LED switches,

the JVM is simple to understand and operate

thanks to its extremely logical front and rear

panel layouts.

The front panel contains dedicated sets of

controls for each of their 2 channels -

CLEAN / CRUNCH and OVERDRIVE - plus

MASTER and REVERB sections. Each channel

contains the familiar controls, Volume, Bass,

Middle, Treble and Gain. The REVERB section

consists of 2 Reverb level controls, one for each

channel while the MASTER section is comprised

of 2 footswitchable Master Volumes, plus master

RESONANCE and PRESENCE controls that

work universally on both channels.

Each of the 2 channels has 3 switchable modes.

These are selected by the MODE switch

dedicated to each channel. To select a channel

press its respective MODE switch (or step on

the relevant button on the supplied 4-way

footswitch - see section II. Footswitch). To

scroll through the selected channel's 3 modes

keep pressing the said button and the colour of

the LED in the switch will change from green to

orange to red and then back to green. Doing this

steps-up the gain level each time (red being the

highest and green the lowest for each channel)

and changes the channel's tonal voicing to suit.

When you leave and then reselect a channel, it

will automatically recall the last active mode as

both channels remember the last mode they

were in until a change is made. For instance, if

you select the Overdrive channel's orange mode

and then go to the Clean channel, when you

reselect the Overdrive channel it will still be

orange.

In addition to channel and Mode selection, other

features switchable via the front panel and the

supplied 4-way footswitch are Reverb (on/off)

Master Volume selection (1 or 2), and

Series/Parallel effects loop (on/off). All 3 of

these options are also remembered by each

Mode.

To sum up, each of the JVMs 6 Modes will

remember its most recent Reverb, FX loop and

Master Volume selection. Additionally mode

setups can also be saved and recalled to one of

128 locations via MIDI.

II. Footswitch (UK patent pending)

The JVM come supplied with a 4-way

programmable footswitch which can be

connected to the amp via any standard guitar

cable.

*Please note that the supplied Footswitch lead is

unscreened and not suitable for guitar.

The 4-button footswitch features 5 LEDS

marked CLEAN / CRUNCH, OD, MASTER,

REVERB & FX. The LEDs for each of the 2

channels are 3-coloured Green, Orange and

Red, visually telling you which channel and

mode is selected alongside the status of Master,

Reverb and FX loop.

The footswitch enables you to assign any of its

4 switches to instantly recall any front panel

function (Switch Store Mode) or complete

channel setup (Preset Store Mode) in any order

and combination.

For example, you could program it so that:

Switch Store Mode

Any footswitch is assigned to act as any one of

your amp’s front panel switches:

Channel/Mode; Reverb on/off; Master Volume

1/2 and FX Loop on/off.

If a switch is assigned to select a particular

channel once is has been activated, it can be

used to scroll through the three modes, just like

its respective front panel switch.

Or…

Preset Store Mode

Each switch can be programmed to instantly call

up a combination of JVM button options to form

a Preset.

ENGLISH

For example, you could program a mixture of

switching functions (in our example switches #1

and #2 work in Preset Store mode, and #3 plus

#4 work in Switch Store mode), so that:

Footswitch #1 = Overdrive channel, green mode

with Master Volume ‘1’, Reverb ‘on’ and FX loop

‘off’.

Footswitch #2 = Clean channel, red mode with

Master Volume ‘2’, Reverb ‘off’ and FX loop on.

Footswitch #3 = FX loop on/off

Footswitch #4 = Master 1/2

All the settings are stored within your footswitch;

this means it can be plugged into any JVM

amplifier and all your footswitch settings can be

instantly recalled.

Details on how to program your footswitch can

be found later in this manual.

III. Power Amp

The power amp stage of the JVMs is based on

the same as the one found in the JCM800 2203

and 1959 Superlead amplifiers and their 50W

cousins, responsible for the legendary Marshall

roar it has been adjusted to suit the variety of

tones found in the JVM. This section features

Presence and Resonance control to help shape

the overall tone of your JVM amplifier.

Your JVM is also equipped with a Silent

Recording mode. When the STANDBY switch is

OFF the power amplifier section is disabled but

the rest of the amplifier remains fully

operational.

IV. Studio Quality Reverb

The Marshall JVM is equipped with a studio

quality digital reverb routed in parallel to the

main signal and mixed by means of a valve.

When the reverb is engaged no degradation of

the direct signal occurs and when off it is

effectively removed from the circuit. Each of the

JVM’s channels also has its own dedicated

Reverb level control.

The Reverb switching has been designed to

avoid abrupt cut offs in the reverb tail so when

changing from channel to channel or switching

the reverb off, its tail naturally decays.

MODEL: PEDL-00045

4321

Marshall JVM 2 Channel Seite 3

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