Studio Technologies 76B 2008 - Manual (Page 40)

Issue 1, July 2008 Model 76B/77B User Guide
Page 40 Studio Technologies, Inc.
for Surround
Specifi cations
Model 76B Central Controller
General Audio:
Frequency Response: digital inputs to monitor
outputs loaded with 10 k ohms
32 to 48 kHz Sample Rate: 20 Hz-20 kHz
±0.05 dB
88.2 to 96 kHz Sample Rate: 20 Hz-40 kHz
±0.05 dB
176.4 to 192 kHz Sample Rate: 20 Hz to 40 kHz
±0.05 dB; down 0.5 dB at 80 kHz
Distortion (THD+N): 0.004%, ref 1 kHz, +4 dBu
output
S/N Ratio: 86 dB, ref +4 dBu output
Dynamic Range: greater than 106 dB
Crosstalk: 104 dB at 1 kHz; 90 dB at 20 kHz,
ref –1 dBFS input
Digital Audio Inputs: 5
Confi guration: two surround (5.1) and three stereo
(2-channel)
Supported Sample Rates: 32, 44.1, 48, 88.2, 96,
176.4, and 192 kHz
Word Length: 24 bits maximum
Type: AES3id-2001 (SMPTE 276M)
Impedance: 75 ohms, unbalanced
Reference Level: –20.0, –18.0, –16.0, or
–14.0 dBFS, selectable
Sync Source: all inputs independently self-clocking
Monitor Outputs: 8
Confi guration: organized as one surround (5.1)
and one auxiliary stereo (2-channel)
Type: electronically balanced, compatible with
balanced or unbalanced loads
Nominal Level, Surround (5.1): 0 or +4 dBu,
selectable
Nominal Level, Auxiliary: –12, –6, 0, or +4 dBu,
selectable
Maximum Level: +26 dBu into 600 ohms or
greater
Dolby E Metadata Input:
Type: RS-485/RS-422
Data Rate/Format: 115.2 kbit/s, 8-N-1
Remote Control Inputs: 4
Functions: remote mute all, remote dim, auxiliary
output on/off, one spare
Type: +5 V logic, activates on closure to system
common
Downmix:
Functions: 5.1 to stereo, stereo to mono
5.1 to Stereo: LS @ –3 dB summed with L; RS @
–3 dB summed with R; C @ –6 dB summed with L
and R; C, LFE, LS, and RS monitor outputs mute
Stereo to Mono: L @ –3 dB summed with R @
–3 dB to C; L, R, LS, RS, and LFE monitor outputs
mute; C input mutes
Control Console Interface:
Power: 12 volts DC, 200 milliamperes maximum
Control Data Type: RS-485
Control Data Rate/Format: 115.2 kbit/s, 8-N-1
Polling Interval: 50 milliseconds
Connectors:
Digital Audio Inputs: 9, 75 ohm BNC
(per IEC 60169-8 Amendment 2)
Monitor Outputs: 25-pin D-subminiature female
Control Console: 9-pin D-subminiature female
Metadata and Remote Control Input: 9-pin
D-subminiature female
AC Mains: 3-blade, IEC 320 C14-compatible
(mates with IEC 320 C13)
AC Mains Requirement: 100, 120, or 220/240 V,
±10%, factory confi gured, 50/60 Hz, 30 watts
maximum
Dimensions (Overall):
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
8.75 inches deep (22.2 cm)
Mounting: one space in a standard 19-inch rack
Weight: 8.8 pounds (4.0 kg)