Marshall Amplification JVM410H User Manual

ENGLISH
REAR PANEL FUNCTIONS (CONT.)
the amount of eect can be dialled in with
the MIX control.
The +4dBu/-10dBV switch allows you
to congure the loop for use with either
rack equipment (+4dBu seng) or with
stompbox level FX (-10dBV seng).
When MIX is set to WET all of the signal
from external FX goes through the FX
LOOP. Add more direct (unprocessed)
signal by turning MIX towards DRY. This
allows you to mix any amount of the
external FX without losing or degrading
the direct signal quality.
When mixing the WET and DRY signals
the external FX processor’s output should
be congured to remove the direct
(unprocessed) signal or an unpleasant
phasing eect may occur when mixing
it again in the amplier. If the amplier
sounds thin aer connecng external
FX check that no direct signal is being
returned from the processors output.
Note: If the FX loop is switched ON and
the MIX control is set to WET without an
external processor connected, the amplier
will be muted.
19. LOUDSPEAKERS
There are 5 speaker outputs available on
the rear panel. They are labelled according
to the intended impedances:
1 x16 OHM
Connect a 16 Ohm speaker cabinet to this
jack.
1 x 8 OHM/2 x 16 OHM
Connect a single 8 Ohm speaker cabinet or
two 16 Ohm guitar cabinets.
1 x 4 OHM/2 x 8 OHM
Connect a single 4 Ohm speaker cabinet
or two 8 Ohm speaker cabinets.
WARNING: Although JVM4 has 5 speaker
outputs never attempt to connect more
speakers than rated. The safe combinations
are 1x16 Ohm, 1x8 Ohm, 2x16 Ohm,
1x4 Ohm or 2x8 Ohm. Any other speaker
conguration may stress the power amplier
section and in extreme cases may lead to valve
and/or output transformer failure. NEVER
use the JVM410H or JVM410C without a
speaker load.
Book-00086-01 - 04/17 (JVM4_Manual86_FINAL_19.04.17).indd 16 28/04/2017 11:14

Marshall Amplification JVM410H Specifications

General

Brand	Marshall Amplification
Model	JVM410H
Category	Amplifier
Language	English