Switch Store Mode; Preset Store Mode; Reverb; Standby & Silent Recording - Marshall Amplification JVM410H Owner's Manual

OVERVIEW (CONT.)
to instantly recall any front panel switch
function (Switch Store Mode) or complete
channel setup (Preset Store Mode) in any
order and combination.

SWITCH STORE MODE

In Switch Store mode any footswitch
button is assigned to act as any one of the
amp's front panel switches: CHANNEL/
MODE, REVERB on/off, MASTER 1/2 and

FX LOOP on/off.

If a footswitch button is assigned to select
a particular channel, once it has been
activated that footswitch button can be
used to scroll through the three modes,
just like its respective front panel switch.

PRESET STORE MODE

In Preset Store mode each footswitch
button can be programmed to instantly
call up a combination of front panel switch
options to form a Preset. For example, you
could program the footswitch so that:
Button #1 = CRUNCH channel, green
mode with MASTER volume '1', REVERB
'on' and FX LOOP 'off'.
Button #2 = CLEAN channel, red mode
with MASTER volume '2', REVERB 'off' and
FX LOOP 'on'.
All Preset settings are stored within the
footswitch; this means that it can be
plugged into any JVM4 amplifier and your
stored footswitch settings will be instantly
recalled.
Details on how to program your footswitch
can be found later in this manual (Front
Panel Function #10).

POWER AMP

The power-stage of the 100 Watt JVM4
is based on the one found in the JCM800
2203 and 1959 Superlead amplifiers
responsible for the legendary Marshall
roar. It has been adjusted to suit the wide
variety of tones found in JVM4 channels
and modes. This power amp section
features PRESENCE and RESONANCE
controls to help shape the overall tone of
your JVM4 amplifier.
Your JVM4 is also equipped with a silent
recording mode. When the STANDBY
switch is in the OFF position, the power-
stage is disabled, but the rest of the
amplifier remains fully operational.

REVERB

The JVM410H and JVM410C are
equipped with studio quality reverb,
routed in parallel to the main signal and
mixed by means of a valve. When reverb
is engaged no degradation of the direct
signal occurs and when it's 'off' it is
effectively removed from the circuit. Each
of the JVM4'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 reverb 'off', its tail decays
naturally.
STANDBY & SILENT RECORDING
(Front Panel Function #11)
When the amplifier is in STANDBY (OFF)
the whole preamp section continues
running at its nominal voltages whilst
the power-stage remains in a 'standby'
status. This allows the amplifier to be
used for silent recording or for preamp
purposes using the EMULATED LINE OUT
(Rear Panel Function #16).
ENGLISH