Data Sheet

ManualsBrandsStudio Technologies ManualsLive SoundModel Surround Monitoring System

Model 780-01 Central Controller / Model 790 Control Console

50391-0215, Issue 1

Key Features:

• 7.1 surround and stereo balanced digital

audio inputs

• 7.1 surround balanced digital outputs

• Balanced digital audio capability

• Allows use of multiple control consoles

• Superior audio quality

Model 780-01 Central Controller Front Panel

Overview

Creating and distributing eight channel (7.1) surround audio material has become

common for entertainment, cinema, and allied applications. As such, the ability to

simply and effectively monitor these sources is imperative during the recording

and post-production process. Studio Technologies has addressed these needs

with the StudioComm for Surround Model 780-01 Central Controller and the

Model 790 and Model 71 Control Consoles. With digital audio inputs, digital

monitor outputs, support for multiple user control surfaces, and an extensive

set of resources it’s a simple task to integrate a monitoring system into virtually

any facility. The carefully selected group of features, including two surround

(7.1) and one stereo input, configurable input-source time delay, LFE low-

pass filter, pre- and post-fader surround outputs, 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 technology, as well as following rigorous design practices,

the system’s audio quality is excellent.

A StudioComm for Surround system starts with the Model 790 Control Con

sole. It’s the system’s “command center” and is designed to reside at a user’s

location, allowing fingertip selection of all monitoring functions. Numerous

LEDs provide complete status information. A 4-digit numeric display indicates

the level of the post-fader monitor output. A major strength of the Model 790

is its ability to configure, under software control, many important operating

parameters. Intended for secondary monitoring locations that don’t require all of the Model 790’s features, 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 790 Control Console. However, up to three additional Model 790 or Model 71 Control

Consoles can also be connected. This provides multiple users with control over a facility’s monitor system. And to make instal

lation simple, the Model 780-01 provides power for all connected Model 790 or Model 71 units.

The core of this StudioComm for Surround system is the Model 780-01 Central Controller. The one-rack-space unit contains

circuitry that supports balanced digital audio inputs, balanced digital monitor outputs, digital audio and control processing, and

interfacing for the user control surface(s). The Model 780-01 provides two surround (7.1) and one stereo digital audio inputs.

These balanced digital inputs are AES3-compliant; sources of this type are ubiquitous in many post-production and audio facility

environments. The inputs allow a sample rate of 44.1, 48, 88.2 or 96 kHz and a bit depth of up to 24 to be supported. Circuitry

associated with the stereo input provides sample rate conversion (SRC) capability, allowing a wide range of digital audio sources

to be monitored. To compensate with processing delays (latency) associated with associated video displays up to 340 millisec

onds of input delay can be selected. For flexibility, two delay values can be configured, allowing real-time selection as desired.

A number of different signals can serve as the Model 780-01’s digital audio timing reference. For synchronization with a master

timing reference a dedicated source of word clock, DARS (AES11), bi-level video, or tri-level video can be connected. Alternately,

the L/R connection of the actively selected surround or stereo input source can serve as the timing reference.

Model 790

Control Console

Summary of content (4 pages)

PAGE 1
Model 780-01 Central Controller / Model 790 Control Console Overview Creating and distributing eight channel (7.1) surround audio material has become common for entertainment, cinema, and allied applications. As such, the ability to simply and effectively monitor these sources is imperative during the recording and post-production process. Studio Technologies has addressed these needs with the StudioComm for Surround Model 780-01 Central Controller and the Model 790 and Model 71 Control Consoles.
PAGE 2
Model 780-01 Central Controller Back Panel Two surround (7.1) digital monitor outputs are provided. The pre-fader monitor output can be used with metering systems that require signals that aren’t impacted by level control or other monitoring functions. The post-fader monitor output is intended for connection to the inputs on a monitor loudspeaker system.
PAGE 3
The dim function allows the post-fader monitor output level to be reduced by a fixed dB amount. The dim level is configured from among four available values. A mute all function allows the post-fader monitor output channels to be simultaneously muted. The input mute/solo section allows an input channel to be muted or monitored as desired. Multiple channels can also be simultaneously selected for muting or “soloing.” Two output mute functions are also provided.
PAGE 4
Specifications Model 780-01 Central Controller General Audio: Supported Sample Rates: 44.1, 48, 88.2, and 96 kHz Word Length: 24 bits maximum Internal Processing: 32 bits Input-to-Output Latency: two samples (e.g., 0.042 milliseconds @ 48 kHz sample rate) Digital Audio Inputs: 3 (18 audio channels total) Configuration: two surround (7.