Studio Technologies 76DA V.4.00 - Manual (Page 7)

Model 76DA/77 User Guide Issue 3, July 2012
Studio Technologies, Inc. Page 7
for Surround
Figure 3. Model 77 Control Console Front Panel
Channel mute/solo
Mute/solo
mode
Post-fader surround
monitor output
• Surround/stereo
• Reference level
• Mute all
• Dim
• Rotary level control
Monitor output
level display Input source
select
Downmix
surround and two stereo channels
can be separated and then routed to
the subwoofer loudspeaker. Several of
the bass management functions can be
configured to match the requirements of
specific installations.
Great care was taken in designing the
system’s architecture, ensuring that the
character of the audio input signals is
preserved. All audio processing, including
bass management, is performed in 32 bits
using a high-speed field-programmable
gate array (FPGA) integrated circuit.
The Model 76DA occupies one space
(1U) in a standard 19-inch rack. Digital
audio sources are interfaced with the
Model 76DA using nine BNC connectors.
A tenth BNC connector is used by the sync
source. Digital and analog monitor output
signal connections are made using two
25-pin D-subminiature connectors. One
9-pin D-subminiature connector is used to
connect the Model 76DA with up to four
Model 77 or Model 71 Control Consoles. A
second 9-pin “D-sub” connector is used to
interface with remote control signals. AC
mains power is connected directly to the
Model 76DA, with an acceptable range
of 100 to 230 volts, 50/60 Hz.
Additional Details
The Model 77 provides five buttons and
associated LEDs for selection of the sur-
round and stereo input sources to be moni-
tored. While in most cases only one input
source will be monitored at a time, stereo
input C can be selected for simultaneous
monitoring with one of the two surround
or other two stereo inputs. This allows
the two selected inputs to be combined
(“summed”).
It’s interesting to note that while each
of the two surround inputs has an LFE
channel associated with it, the “.1”
post-fader digital and analog surround
monitor outputs are designated as SUB
(subwoofer), rather than LFE. This termi-
nology was carefully selected to highlight
the fact that this output channel may
include more than just LFE content. The