Studio Technologies 76DA V.4.12 - Manual (Page 45)

Model 76DA/77 User Guide Issue 9, May 2014
Studio Technologies, Inc. Page 45
for Surround
monitor output is set to be 40.5 dB below
the maximum level. As the rotary level con-
trol is moved counterclockwise the output
level will go down and the indicated value
will get more negative.
Display in dB SPL
If the Model 77 is configured to display the
post-fader digital and analog monitor out-
put level in dB SPL, the 4-digit display will
always show the output level in positive
numbers. These numbers are intended to
represent the sound pressure level in dB
SPL, a figure that should directly relate to
the actual sound pressure level that the
surround or stereo loudspeaker system
is presenting to users. (Typically, the level
value would actually be in dBC, the C-
weighted sound pressure level.) When the
reference level button is enabled, or the
rotary level control is set so that the refer-
ence level has been reached, the display
will typically show something in the range
of 82 to 87 dB. Assuming that the monitor-
ing environment has been correctly cali-
brated, this would indicate that an average
listening level of 85 dB, for example, had
been achieved.
Channel Pop Solo Display
As has been previously discussed, the
channel pop solo mode offers a unique way
of sonically highlighting an individual chan-
nel. A channel selected for soloing in this
mode will have its level increased while the
other non-soloed channels will be reduced
in level. To highlight this condition the let-
ters POP will appear in the 4-digit display
whenever a channel is actively being soloed
in the channel pop solo mode. This ensures
that a user will understand that the post-
fader monitor outputs no longer represent
the true inter-channel level relationships.
Remote Control Inputs
As previously discussed in the Installation
section of this user guide, two remote
control signals can be connected to the
Model 76DA and then configured for
operation. The functions are remote mute
all and remote dim. When an external signal
activates remote mute all the LED on the
Model 77 associated with the mute all button
will flash. If mute all was already active when
the remote mute all function is activated, the
LED will change from being steadily lit to
flashing.
When an external signal activates remote
dim the LED on the Model 77 associated
with the dim button will flash. If dim was
already active when remote dim is activated,
the LED will change from being steadily lit
to flashing.
Model 71 Control Console
The Model 71 Control Console provides a
rotary level control and a limited number of
pushbutton switches and LEDs for control
and status display. The rotary level control
allows adjustment of the post-fader surround
and stereo monitor output levels. Two but-
tons, along with associated LEDs, provide
access to the dim and reference level func-
tions. A status LED lights steadily whenever
normal Model 71 operation is taking place.
Any changes made using the Model 71’s
rotary level control and buttons will be re-
flected in the appropriate LEDs and displays
on all the connected Model 77 and Model 71
units. And, as expected, changes made us-
ing a Model 77 will be reflected in the Model
71’s LEDs.
In some applications it may be desirable to
disable operation of a Model 71’s dim and
reference buttons. An example could be