Master Section - Marshall JVM 4 Serie Manual Del Usuario

ENGLISH
Note: 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.
13. REVERB CONTROL (CLEAN CHANNEL)
Adjusts the level of reverb applied to the clean
channel.
14. REVERB CONTROL (CRUNCH CHANNEL)
Adjusts the level of reverb applied to the
crunch channel.
11. REVERB CONTROL (OD1 CHANNEL)
Adjusts the level of reverb applied to the OD1
channel.
12. REVERB CONTROL (OD2 CHANNEL)
Adjusts the level of reverb applied to the OD2
channel.

MASTER SECTION

The master volume controls set the overall
volume of the amp across all channels. Master 1
and Master 2 can be assigned to any mode and
can be switched back and forth.
3.2
FRONT PANEL FUNCTIONS
5. MASTER 1
Master 1 is used on all channels/modes by default.
6. MASTER 2
To set a channel/mode to use master 2, select
the channel and mode, push the master button
to engage master 2 and then switch out of the
mode. When you re-visit the mode, the amp
will automatically recall which master volume
control you were previously using.
7. MASTER SWITCH
Switch between master 1 and master 2 for
different volume settings on the same channel/
mode. The red LED in the switch indicates
that master 2 is engaged. The light is off when
master 1 is engaged.
Note: presets stored in the footswitch will
recall whether master 1 or master 2 was
selected. However, it will not recall the previous
level of the master volume control.
9. PRESENCE
Adjusts the high frequencies of the power amp.
Increasing high frequencies adds more bite to
your sound.
8. RESONANCE
Adjusts the low frequencies of the power amp.
Increasing low frequencies adds more bottom
end giving you a fatter sound.
Warning: care should be taken to avoid over
exertion of the speaker cones in high resonance
settings.
Note: both the presence and resonance
controls are power amplifier controls and
therefore only have effect when playing
through a speaker.
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