User Guide

Model 780-01/790 User Guide Issue 4, December 2020
Studio Technologies, Inc. Page 45
for Surround
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 (7.1) and one stereo
Type: balanced AES3 (110 ohms, 5 Vpp)
Connector—Surround Inputs: 25-pin female
D-subminiature (DB-25F), AES59-2012-compliant
Connector—Stereo Input: 3-pin female XLR
Sample Rate Conversion (SRC):
Application: available on the stereo input
Input Sample Rate Range: 8 to 216 kHz, limited
to 1/6 to 6 times the output sample rate
Latency: 1 millisecond, nominal
LFE Input Channel Low-Pass Filter: –6 dB @
120 Hz, 48 dB-per-octave, on/off selectable
Sync Source: configured to follow L/R of currently
selected input or signal connected to sync input
Sync Input:
Compatible Sources: word clock, DARS (AES11),
bi-level video, tri-level video
Jitter: 4 ns pp maximum
Connector: BNC (per IEC 60169-8 Amendment 2)
Termination: 75 ohms, selectable on/off
Digital Monitor Outputs: 2 (16 channels total)
Configuration: organized as two surround (7.1),
one pre-fader, and one post-fader
Dynamic Range: >135 dB
Type: balanced AES3 (110 ohms, 5 Vpp)
Connector: 25-pin female D-subminiature (DB-
25F), AES59-2012-compliant
Configurable Input Delay: 0 to 340 milliseconds
@ 48 kHz sample rate (scales up or down depend-
ing on actual sample rate)
Post-Fader Monitor Output Level Offsets: each
channel independently adjustable in 0.5-dB steps
over a ±12-dB range
Bass Management:
Crossover Frequency and Type: –6 dB @ 40, 50,
60, or 80 Hz, symmetrical for low-pass and high-
pass filters, maximally flat
Filter Slope: 12 dB-per-octave or 24 dB-per-octave
Overall Operation: on/off selectable
Downmix Functions: To 5.1, To Stereo, and
To Mono
Control Console Interface:
Type: RS-485, 115.2 kbit/s, 8-1-N
Polling Interval: 80 milliseconds, nominal
Power: 12 Vdc, 500 mA maximum
Connector: 9-pin female D-subminiature (DE-9F)
Remote Control Inputs: 2
Functions: remote mute all, remote dim
Type: 3.3 Vdc logic, activates on closure to system
common
Connector: 9-pin female D-subminiature (DE-9F)
AC Mains:
Requirement: 100 to 240 V, +10/–15%, 50/60 Hz,
15 W maximum
Connector: 3-blade, IEC 320 C14-compatible
(mates with IEC 320 C13)
Dimensions:
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
7.00 inches deep (17.8 cm)
Mounting: one space (1U) in a standard 19-inch
rack
Weight: 3.6 pounds (1.6 kg)