Studio Technologies 76DA V.4.00 - Manual (Page 25)

Model 76DA/77 User Guide Issue 3, July 2012
Studio Technologies, Inc. Page 25
for Surround
This feature is provided primarily for use
when the post-fader monitor output chan-
nels are connected to loudspeaker systems
that don’t offer a means of “trimming” the
input sensitivity of individual channels.
Without this capability, minor adjustments
to the output level of specific loudspeakers
to account for room acoustics wouldn’t be
possible.
It’s also possible to use the StudioComm’s
output level offset capability to adjust the
overall post-fader monitor output levels to
allow matching to the input sensitivity of
loudspeaker systems. In this case all the
channels (six for surround, two for stereo)
would be configured to have the same out-
put level offset setting. For example, the six
surround channels could all be configured
to have a –3.5 dB output level offset. How-
ever, great care must be taken when config-
uring a system in this manner. The dynamic
range or noise floor of the audio signals will
be impacted and extreme settings could
lead to poor monitor system performance.
Restore Factory Defaults
The restore factory defaults function is pro-
vided primarily for factory use. In this way
a system can be shipped with the default
settings selected. While you are welcome
to use this function, be careful so that your
configuration efforts aren’t wasted. Specifi-
cally, be aware that the reference level is
reset to minimum level. All the other param-
eters are fairly easy to set up, but resetting
the reference level would require getting
out an SPL meter and a calibrated signal
source. This is a hassle you may not need!
Model 71 Control Console
Configuration
The only configuration choice available
on a Model 71 is its device address. It
must be selected so as not to conflict with
the device address of any other connected
Model 71 or Model 77 Control Console.
The choices are A1, A2, A3, and A4.
All Model 71 units have a default device
address of A4; Model 77’s units have a
default device address of A1. This ensures
that, in most cases, no change will have
to be made. Refer to Figures 8 and 9 for
details.
A small button is located on the back of
each Model 71 Control Console, adjacent
to the 9-pin D-sub connector. Pressing and
holding this button for two seconds places
this specific unit in its configuration mode;
normal operation of the Model 76DA and
other connected Model 71 and Model 77
units will continue. When a Model 71 en-
ters its configuration mode its three LEDs
will no longer perform their usual functions.
Instead the status LED will blink to indi-
cate that configuration mode is active. The
dim and reference level LEDs will display
the Model 71’s current device address.
The rotary level control is used to select
the desired device address; the LEDs will
respond accordingly.
To leave the configuration mode and return
a Model 71 to normal operation requires
one last action: again press and hold its
configure button for two seconds. The
selected device address will be stored in a
nonvolatile memory device that is located
inside this specific Model 71.