Rear Panel Functions - Marshall 1974X Guia De Inicio Rapido

REAR PANEL FUNCTIONS

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1. TREMOLO FOOTSWITCH JACK
This is where the supplied Tremolo on/off
footswitch is plugged in.
2 & 3. SPEAKER OUTPUTS
Connect one or two speaker cabinets here using
1/4" jack speaker cables.
Warning:
always ensure the output impedance
selector is set to the appropriate impedance for
the load of your setup (speaker cabinets). Never
use this amp without a speaker or load.
4. OUTPUT IMPEDANCE SELECTOR
Matches the amp's output to the load
impedance. Ensure the amp is completely
powered down before turning the selector.
The impedance selected on the amp must
match the total impedance of the internal
speaker or external speaker cabinet(s) being
used.
• When using the combo's internal speaker
only, the impedance selector must be set to
16Ω.
• If an additional 16Ω extension speaker
cabinet is used in conjunction with the
internal speaker the impedance selector
should be set to 8Ω.
Note: an extension speaker cabinet with an
impedance of less than 16Ω should not be used
in conjunction with the internal speaker.
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Warning: failure to comply with these points may
result in damage to the amp.
5. MAINS FUSE
The correct value of the mains fuse is specified
on the rear panel.
6. H.T. FUSE
The correct value of the H.T. fuse is specified
on the rear panel.
7. POWER INLET
The supplied mains power lead is connected
here. The mains input voltage rating that your
amp has been built for is shown on the rear
panel.
ENGLISH
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