Studio Technologies 68A 2005 - Manual (Page 9)

Model 68A/69A User Guide Issue 2, January 2005
Studio Technologies, Inc. Page 9
for Surround
Two functions allow the format of the
monitored signals to be checked for level
or phase inconsistencies. The downmix
function is used to create a 2-channel
stereo signal from a surround source. The
mono function allows a stereo signal to be
added (summed) and monitored by either
the left channel and right channel moni-
tor outputs, or the center channel monitor
output. The downmix and mono functions
can be enabled at the same time, allowing
a surround signal to be checked for mono
compatibility.
A bandpass fi lter can be inserted into the
path of the mono signal when it is being
routed to the center channel. This allows
the simulation of the response of a loud-
speaker associated with an inexpensive
monaural television or portable radio.
A major strength of the Model 69A is the
ability to confi gure, under software control,
many operating parameters. This allows
operation to be tailored to meet the char-
acteristics of an installation. In addition,
the specifi c operating preferences desired
by a facility or individual user are selected.
To meet future needs, all confi gurations
can be changed at any time. All confi gura-
tion parameters are stored in non-volatile
memory.
A Model 69A Control Console connects
to the Model 68A Central Controller using
a standard 9-pin D-sub cable. Power for
the Model 69A is provided by the Model
68A. The Model 69A generates MIDI
system-exclusive messages to control the
Model 68A. Remote control signals, while
physically connected to the Model 68A,
route to the Model 69A via conductors in
the 9-pin D-sub interconnecting cable.
Remote Control Capability
Three remote control functions are avail-
able: mute all, dim, and input select.
Remote mute all and remote dim are
Figure 3. Model 69A Control Console Front Panel
Input
Sources
Monitor output
channel mute/solo
Mute/solo
mode select
Monitor Output
• Reference level
• Mute all
• Dim
• Rotary level control
Surround/stereo
output select
Mono
Downmix