Model 760-03/77 User Guide
Issue 4, October 2016
Studio Technologies, Inc.
Page 5
for Surround
Introduction
What This User Guide Covers
This User Guide is designed to assist
you when installing and using the Model
760-03 Central Controller and one or more
associated Model 77 or Model 71 Control
Consoles.
Overview
As creating and distributing multi-channel
surround (5.1) and stereo audio material
has become a day-to-day reality, the abil-
ity to simply and effectively monitor these
sources is imperative for recording, post-
production, and broadcast facilities. And
with audio-with-picture applications becom-
ing so prevalent, additional monitoring chal-
lenges have arisen. Studio Technologies
has addressed these needs with the Studio-
Comm for Surround Model 760-03 Central
Controller and the Model 77 and Model 71
Control Consoles. With digital audio inputs,
digital and analog monitor outputs, support
for multiple user control surfaces, and an
extensive set of operating resources it’s a
simple task to integrate a monitoring system
into virtually any facility. The carefully se-
lected group of features, including surround
and stereo inputs, configurable input-signal
time delay, multiple pre- and post-fader out-
puts, configurable downmix and mute/solo
functions, and bass management, along
with a multi-format sync input, make the
system powerful yet simple to operate. And
by using the best of contemporary technol-
ogy, as well as following rigorous design
practices, the system’s audio quality is
excellent.
A StudioComm for Surround system starts
with the Model 77 Control Console. It’s the
system’s “command center” and is designed
to reside at a user’s location, allowing fin-
gertip selection of all monitoring functions.
Numerous LED indicators provide com-
plete status information. A 4-digit numeric
display indicates the post-fader monitor
output level in real time. A major strength
of the Model 77 is its ability to configure,
under software control, many important
operating parameters. Intended for sec-
ondary monitoring locations, the Model 71
Control Console is a compact user control
surface. It provides three of the most basic
functions: a rotary level control, dim on/off
button, and reference level on/off button.
Most installations will use only one Model
77 Control Console. However, up to three
additional Model 77 or Model 71 Control
Consoles can also be connected. This
provides multiple users with full control
over a facility’s monitor system. And to
make installation simple, the Model 760-03
provides power for all connected Model 77
or Model 71 units.
The core of this StudioComm for Surround
system is the Model 760-03 Central Con-
troller. The one-rack-space unit contains
circuitry that supports balanced digital
audio inputs, balanced digital and analog
monitor outputs, digital audio and control
processing, and interfacing for the user
control surface(s). The Model 760-03 pro-
vides two surround (5.1) and three stereo
digital audio inputs. These balanced digital
inputs are AES3-compliant; sources of this
type are ubiquitous in many post-produc-
tion and audio facility environments. The
inputs allow a sample rate of up to 192
kHz and a bit depth of up to 24 to be di-
rectly supported. Circuitry associated with
one of the stereo inputs provides sample
rate conversion (SRC) capability, allowing
a wide range of digital audio sources to be
monitored. Up to 340 milliseconds of input
