Marshall Amplification 1987X User Manual

11. LEVEL
Provides two dierent levels to suit
the type of eects connected to the
EFFECTS LOOP. The higher level
(+4dBV) suits rack processors and the
lower level (-10dBV) suits stompbox
eects.
12. BYPASS
This switch completely bypasses the
eects loop to maintain absolute tonal
integrity.
13. EFFECTS LOOP
To increase the exibility of your
amplier further you may choose to add
external eects. The eects loop allows
direct connecon of either stompboxes
or rack processors.
Usually eects involving distoron
or wah wah would not go through the
eects loop, but between the guitar
and amplier input. Time or modulaon
based eects such as chorus, delay and
reverb are best suited to the loop.
SEND
Connect the input of the external
eects.
RETURN
Connect to the output of the external
eects.
14. SPEAKERS
Loudspeaker outputs. Connect your
speaker cabinet(s) here.
WARNING: Before connecng speakers
please ensure that OUTPUT SELECTOR
(Rear Panel Funcon #15) is correctly set to
match speaker cabinet(s) impedance.
15. OUTPUT SELECTOR
WARNING: Your amp should be completely
powered down before the OUTPUT
SELECTOR is turned.
The OUTPUT SELECTOR matches the
amplier’s output to speaker cabinet(s)
impedance.
With all-valve ampliers it is imperave
that the amp is connected to a speaker
cabinet whilst in operaon and that the
impedance selected on the amplier
matches the total impedance of the
speaker cabinet(s) being used. For
example, if the amp is running into a
single 16 Ohm cab, the amp should
accordingly be set to 16 Ohms. If running
into two 16 Ohm cabs, the amp should
REAR PANEL FUNCTIONS
1959SLP & 1987X REAR PANEL
11 12 13 14
15
ENGLISH

Marshall Amplification 1987X Specifications

General

Brand	Marshall Amplification
Model	1987X
Category	Amplifier
Language	English