4
5
NB: Please note that the supplied footcontroller lead is
unscreened and not suitable for guitar.
The 6-button footcontroller features 7 LEDS marked
CLEAN/MID-SHIFT, CRUNCH, OD1, OD2, MASTER, GATE
& FX. The LEDs for each of the 4 channels are 3-coloured
Green, Orange and Red, visually telling you which channel
and mode is selected alongside the status of Master, Noise
Gate and FX loop. The CLEAN LED also doubles as a visual
indicator for when the MID-SHIFT option on the OD1 and
OD2 channels is activated.
The footcontroller enables you to assign any of its 6
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 footcontroller is assigned to act as any one of your
amp’s front panel switches: Channel/Mode; Gate 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.
PRESET STORE MODE
Each switch can be programmed to instantly call up a
combination of JVM button options to form a Preset. For
example, you could program it so that:
Footcontroller #1 = Crunch channel, green mode with
Master Volume ‘1’, Gate ‘on’ and FX loop ‘off’.
Footcontroller #2 = OD2 channel, red mode with Mid-Shift
“on”, Master Volume “2”, Noise Gate “off” and FX Loop
“on.”
All the settings are stored within your footcontroller; this
means it can be plugged into any JVM410HJS amplifi er
and all your footcontroller settings can be instantly recalled.
Details on how to program your footcontroller can be found
later in this manual.
III. POWER AMP
The power amp stage of the 100 Watt JVM410HJS
is based on the same as the one found in the JCM800
2203 and 1959 Superlead amplifi ers, 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 JVM410HJS amplifi er.
Your JVM is also equipped with a Silent Recording mode.
When the STANDBY switch is OFF the power amplifi er
section is disabled but the rest of the amplifi er remains fully
operational.
IV. NOISE GATE
Your new JVM410HJS is equipped with an ultra-fast,
studio-quality Noise Gate. Instead of abruptly cutting
the sound once the threshold is reached like some
noise reduction units, this Gate progressively attenuates
Presenting the 4 channel, 100 Watt, all-valve
JVM410HJS Joe Satriani Signature head. Its
4 channels boast 3 modes each, giving you
a total of 12 modes and no fewer than nine*
unique gain structures to choose from. Even
though its front panel contains a total of
28 control knobs and 9 LED switches, the
JVM410HJS is simple to understand and
operate thanks to its extremely logical front
and rear panel layouts.
I. CHANNELS, MODES & MEMORY
The front panel contains dedicated sets of controls for each
of its 4 channels - CLEAN, CRUNCH, OD1 & OD2 - plus
MASTER and GATE THRESHOLD sections. Each channel
contains the familiar controls, Volume, Bass, Middle, Treble
and Gain. The GATE THRESHOLD section consists of 4
Gate Threshold controls, one for each channel while the
MASTER section is comprised of 2 footcontrollerable Master
Volumes, plus master RESONANCE and PRESENCE
controls that work universally on all 4 channels.
Each of the 4 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 6-way
footcontroller). 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 all 4 channels
remember the last mode they were in until a change is
made. For instance, if you select the Crunch channel’s
orange mode and then go to the Clean channel, when you
reselect the Crunch channel it will still be orange.
In addition to channel and Mode selection, other features
switchable via the front panel and the supplied 6-way
footcontroller are Noise Gate, Master Volume selection (1
or 2), and Series effects loop (on/off). All 3 of these options
are also remembered by each Mode.
To sum up, each of the JVM’s 12 Modes will remember
it’s most recent Noise Gate, FX loop and Master Volume
selection. Additionally mode setups can also be saved and
recalled to one of 128 locations via MIDI.
II. FOOTCONTROLLER (UK PATENT GB 2442765)
The JVM410HJS comes supplied with a 6-way
programmable footcontroller which can be connected to
the amp via any standard guitar cable.
OVERVIEW
the signal following its dynamics. The individual Gate
Threshold control for each of the amp’s four channels is
specially tailored for it and allows very slow decay times for
slowly moving guitar signals thus maintaining the natural
sustain, plus very fast decays for staccato rhythms and
short pauses.
One of the most instantly noticeable differences
between the JVM410H and the JVM410HJS is
that I’ve replaced the original Reverb section
with independent Noise Gates for each channel.
Reverb is a very personal thing and I’ve found
that for me a built-in reverb never works as
well in a professional setting as one you can
put in an FX loop. I also felt that the amp was
missing something that’s extremely important
for recording, especially as a lot of recording is
done live nowadays. That missing something? A
professional quality Noise Gate – because guitar
players need their gain up but they also need to be
quiet!
So, we swapped out the four Reverb controls
on the original JVM410H front panel for four
independent Noise Gates which are just fantastic.
Boy do they make my life easy. I don’t have to do
a bunch of pedal-board tap dancing turning things
off and then back on again, in-between phrases.
It’s also a great way of keeping my stage noise
down to a minimum & I also think it’s less
distracting for the audience not to be overwhelmed
with hiss and noise in those supposed “holes of
silence!” Plus, of course, if you want you can
switch them off and go old school, which is great
and I’ll do that on occasions. Sometimes though,
I really just want to be able to blast with a lot
of gain, but also need it to be completely quiet
when I’m not playing, and for that the four gates
are just fantastic.
*Note: as you’ll learn from Joe, channels 3 and 4 are identical – hence nine
different gain structures, as opposed to 12.
THE BASICS
WARNING: Before going any further, make sure your
amplifi er is compatible with your electrical supply. If
you have any doubt, please get help from a qualifi ed
technician - your Marshall dealer can help you in this
respect.
The correct value of mains fuse is specifi ed on the rear
panel of the amplifi er. NEVER attempt to bypass the
fuse or fi t one of the incorrect value.
Note: Please ensure the amplifi er is switched off and
unplugged from the mains electricity supply whenever
it is moved!
Getting Started & Powering Up
1. Make sure that the speakers/cabinet(s) are connected
to the correct impedance LOUDSPEAKER jack(s)
on the rear panel (14). See page 10 for specifi cs
regarding impedance matching. If you’re using an
extension cabinet make sure it’s powerful enough
to handle a 100 Watt amp and also that you’re
using a proper speaker cable. Never use a screened
(shielded) guitar cable for this purpose
WARNING!
1. Failure to do any of the above will damage your
amplifi er.
2. NEVER use your amp without a (speaker) load
attached when the Standby Switch is ON.
Marshall recommends you always leave a (speaker)
load attached to the unit.
2. Ensure that both MASTER VOLUMES on the front
panel (6) are set to zero.
3. Connect the footcontroller cable to the footcontroller
and then connect to the footcontroller socket on the
rear panel of amplifi er.
4. Connect the supplied mains (power) lead into the
MAINS INPUT on the rear panel fi rst and then into
an electrical outlet.
5. Plug your guitar into the INPUT jack socket on the
front panel.
6. Turn the front panel POWER switch on. This will
glow red then wait for a couple of minutes.
7. After waiting a couple of minutes, engage the
STANDBY switch. Leaving the amp on ‘Standby’ for
a period allows the valves to come up to their correct
operating temperature. In order to prolong valve life,
the STANDBY switch should also be used to mute
the amplifi er during breaks in a performance.
JVM410HJS SPECIFICATIONS
Power (RMS)
100W
Valves
5x ECC83 + 4x EL34
Main Guitar - Input Impedance
1M
Ω
Emulated Output - Level
+4dBu
FX Send Level - selectable
-10dBV
Weight
22kg
Size (mm) W, H, D
750 x 310 x 215
ENGLISH
Summary of Contents for JVM410HJS Joe Satriani
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