Studio Technologies 750 - Manual (Page 31)

Model 750 User Guide Issue 3, May 1997
Studio Technologies, Inc. Page 31
Model 750
Another two controls are used to set the
overall level of the main audio bus. They
too should be set to the unity gain position
except in special situations.
Limiter/Compressors
A studio-quality limiter/compressor circuit
is associated with each channel of the
main audio bus. A push-button switch
selects the off/on status; when the button
is in the out position the limiter/compres-
sors are not active. When the button is in
the on (in) position, high signal levels on
the main audio bus will be automatically
attenuated.
Two green LEDs display the operating
status of the limiter/compressors. They
light whenever signal attenuation is taking
place. Note that the limiter/compressor
circuits operate independently for the left
and right channels—they do not “track”
together.
Main Outputs
Three stereo output connections are pro-
vided on the back panel, providing access
to the signals on the main audio bus. Main
outputs 1 and 2 are configured for line
level. A button, located on the front panel,
selects the output level for main output 3.
Setting the button to the out position se-
lects microphone level; the in position
selects line level.
Talk Back
Two buttons allow voice signals to be
connected to the setup direct output and
the main and AUX output buses, creating
a “talk back” function for cueing, slating,
and setup use. The talk back audio source
is the same as that used by the setup sec-
tion’s voice recording function. Depending
on the setting of configuration DIP switch
1, it is either the internal microphone or an
externally-connected line-level audio
source. The Model 750’s monitor speaker
output is automatically muted whenever a
talk back function is active.
Pressing and holding the talk back button
labeled SETUP DIRECT OUT connects the
voice audio source to the setup direct
output connections. The voice audio
signal will be added (summed) with what-
ever signal is also present on the setup
direct output; a voice or tone signal
present on the setup direct output will not
be muted while talk back is taking place.
Pressing and holding the talk back button
labeled MAIN & AUX OUT connects the
voice audio source to the main and AUX
audio buses. The voice audio signal will
be added (summed) with whatever signals
are also present on the buses.
Monitor Section
The monitor section assists the operator in
obtaining the best performance from the
Model 750. It controls the signals that are
presented to the VU meters and associ-
ated peak indicator lights, speaker output, Figure 13. Detail of front panel showing
monitor section