LISTEN input selector.
b. Increase the VOLUME control during a quiet
passage of the program until noise is clearly audible.
c. Turn the COMPANDOR selector knob to EX-
PAND. The Listen indicator will light over the
COMPANDOR pushbutton.
d. Rotate the RATIO control clockwise until the
noise is acceptably reduced.
e. Adjust the LEVEL MATCH control as
previously described.
2. To improve the sound of recorded or broadcast
program material:
a. Select the input on the LISTEN input selector.
b. Increase the VOLUME to a satisfactory level.
c. Turn the COMPANDOR selector switch to
EXPAND.
d. Rotate the RATIO control clockwise until the
dynamic range of the music is satisfactory for you.
The usual position will be between 1.2 and 1.5.
e. Adjust the LEVEL MATCH control as
previously described.
TOP PANEL CONTROLS
COMPANDOR
Operation of the LEVEL MATCH and SPEED controls
is explained on page 12. See the Compandor System
description.
MONITOR AMPLIFIER
The built-in MONITOR AMPLIFIER can drive head-
phones, loudspeakers, or provide a low impedance line
output. A top panel input position switch selects the in-
put for the MONITOR AMPLIFIER. The sources are the
LISTEN program line, the RECORD program line, or any
high level EXTERNAL source. When using headphones
plugged into the front panel jacks, the normal position
is LISTEN.
The monitor amplifier LEFT and RIGHT CAIN controls
are located to the left of the INPUT switch on the top
panel. When the switch is in the LISTEN position, the
LEFT and RIGHT GAIN controls regulate the monitor
volume along with the main front panel VOLUME con-
trol. When the INPUT switch is in the RECORD or EX-
TERNAL position, only the LEFT and RIGHT GAIN con-
trols regulate the monitor amplifier volume.
The monitor amplifier can be used with any low im-
pedance dynamic headphones. High impedance head-
phones will work but at reduced listening levels.
FRONT PANEL CONTROLS 13
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