5.1 SURROUND MONITORING SYSTEM
recording | post-production | broadcast
Model 76 and Model 76D Central Controllers
Model 77 and Model 71 Control Consoles
The StudioComm Model 77 Control Console and Model 76 Central Controller with analog outputs or Model 76D Central Controller
with digital outputs enable simple and e ective monitor ing of 5.1 surround and stereo audio material. Designed for recording , postproduction, and broadcasting applications. System features include:
• Digital audio inputs • Downmix
• Analog outputs (Model 76) • Channel mute/solo
• Digital outputs (Model 76D) • Level adjustment, reference level, and dim
Model 77 and Model 71 Control Consoles
The Model 77 Control Console is the “command center.” Designed to reside at an operator’s location, it allows ngertip
selection of all monitoring functions. Numerous LED indicators provide complete status information. Five buttons and
associated LEDs enable quick selection of the surround and stereo input sources to be monitored. A large, easy-to-use
rotary digital encoder provides control of the surround monitor output level in precise 0.5-dB steps. A 4-digit LED readout
displays the level of the monitor output. The monitor output level can be adjusted via the rotary level control or pre-set using
the reference level function.
The Model 71 Control Console works with the Model 77 to provide additional user locations with the most frequently desired
functions: level adjustment, reference level, and dim.
Model 76 and Model 76D Central Controllers
Model 77 and Model 71 Control Consoles
Model 76 and Model 76D Central Controllers
The Model 76 and Model 76D Cent ral Controller s are rack mount able and o er two s urround (5.1) and thr ee stereo (2-channel) digital
inputs that are compatible with AES3id sources. Sample rates of up to 192 kHz and bit depth of up to 24 are directly supported.
Exceptional dynamic range and extremely low distortion ensure that the audio quality of each source is maintained.
The Model 76 Central Controller has eight analog balanced line-level outputs organized as:
• Surround (5.1)
• Stereo (2-channel)
The Model 76D Central Controller o ers 16 digital output channels with transformer-coupled outputs and selectable impedance
(75 ohms or 110 ohms):
• Pre-fade surround (5.1)
• Pre-fade stereo (2-channel)
• Post-fade surround (5.1)
• Post-fade stereo (2-channel)
The Model 76D’s sync input allows support for video (bi-level and tri-level), word clock, DARS, and AES3id. Sample rate conversion
is available on one input. In addition, up to 340 milliseconds of digital delay can be selected to compensate for processing delays
in an associated video path.
One Model 76 or Model 76D Central Controller can support a combination of up to four Model 77 or Model 71 Control Consoles.
and Model 71 Control Consoles
Model 76 Central Controller Model 76D Central Controller
76D Central Controller
Central Controlle
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General Audio
Frequency Response 20 Hz to 40 kHz ±0.05 dB (192 kHz sample rate)
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 @ 1 kHz; 90 dB @ 20 kHz, ref –1 dBFS input
Digital Audio Inputs ve (18 audio channels)
Con guration two surround (5.1) and three stereo (2-channel)
Type AES3id/SMPTE 276M (75 ohms, unbalanced)
Connectors BNC
Suppor ted Sample Rates 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz
Word Length 24 bits maximum
Sync Sour ce all inputs independently self-clocking
Analog Monitor Outputs eight
Con guration organized as one surround (5.1) and one stereo (2-channel)
Type electronically balanced
Maximum Level +26 dBu into 600 ohms or greater
Connec tor 25-pin D-subminiatur e female
Downmix 5.1 to stereo, s tereo to mono
Stereo to Mono Bandpass Filter
Response –3 dB @ 100 Hz and 5 kHz, nominal, 12 dB/oc tave
Contr ol Console Inter face
Type RS-485, 115.2 kbit/s, 8-N-1
Connec tor 9-pin D-subminiature female
Power 12 volts DC, 200 milliamperes maximum
Remote Control Inputs two
Functions remote mute all, remote dim
AC Mains
Req uirem ent 100, 120, or 220/240 V, ±10%, fa ctory con gured, 50/60 Hz, 30 w atts ma ximum
Connec tor 3-blade, IEC 320 C14-compatible (mates with IEC 320 C13)
Mounting one space in a standard 19-inch rack
Dimensions 19.00 in. w ide (48.3 cm) x 1.72 in. high (4.4 cm) x 8.75 in. deep (22.2 c m)
Weight 8.8 pounds (4.0 kg)
General Audio
Suppor ted Sample Rates 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz
Word Length 24 bits maximum
Internal Processing 32 bits
Dynamic Range 134 dB
Digital Audio Inputs ve (18 audio channels)
Con guration two surround (5.1) and three stereo (2-channel)
Type AES3id/SMPTE 276M (75 ohms, unbalanced)
Connectors BNC
Sample Rate Conversion available on Stereo Input C
Sync Input
Sour ces video (bi-level, tri-level), word clock, DARS (AES11), AES3id
Jitter 4 ns (p-p) maximum
Connector BNC
Termination 75 ohms, selectable on/o
Digital Monitor Outputs four (16 audio channels)
Con guration organized as two surround (5.1) and two stereo (2-channel)
Type AES3id/SMPTE 276M (75 ohms) or AES3 (110 ohms), selectable
Connector 25-pin D-subminiature female
Con gurable Delay 0 to 340 milliseconds @ 48 k Hz sample rate
Downmix 5.1 to stereo, s tereo to mono
Contr ol Console Interface
Type RS-485, 115.2 kbit/s, 8-N-1
Connec tor 9-pin D-subminiature female
Power 12 volts DC, 500 milliamperes maximum
Remote Control Inputs two
Functions remote mute all, remote dim
AC Mains
Requirement 100 to 230 V, 50/60 Hz, 15 watts maximum
Connec tor 3-blade, IEC 320 C14-compatible (mates with IEC 320 C13)
Mounting one space in a standard 19-inch rack
Dimensions 19.00 in. w ide (48.3 cm) x 1.72 in. high (4. 4 cm) x 7.0 0 in. deep (17.8 cm)
Weight 6.2 pounds (2.8 kg)
Model 77 and Model 71 Control Consoles
Application up to a tot al of four Control Consoles can be connec ted to a Centr al Controller
Power Requirement (typically provided by Centr al Controller)
Model 77 12 volts DC, 100 milliamperes maximum
Model 71 12 volts DC, 35 milliamperes maximum
Centr al Controller Interface
Type RS-485, 115.2 kbit/s, 8-N-1
Connec tor 9-pin D-subminiature female
Dimensions
Model 77 7.20 in. wide (18.3 cm) x 2.20 in. high (5.6 cm) x 5.40 in. deep (13.7 cm)
Model 71 3.20 in. wide (8.1 cm) x 2.20 in. high (5.6 cm) x 4.1 in. deep (10.4 cm)
Weight
Model 77 1.7 pounds (0.8 kg)
Model 71 0.8 pounds (0.4 kg)
Speci cat ions subjec t to change w ithou t notice. © by S tudio Techno logies, In c., 2009 .
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At Studio Technologies we design and manufacture dependable,
high-performance audio products for demanding professionals.
For over 30 years we have never wavered in our commitment to
building rock-solid products and o ering outstanding customer
service. Our products are used worldwide in broadcast, studio,
stadium, and corporate environments.
5520 W. Touhy A venue
Skok ie, IL 60077 US A
Phone: +1 847-676-9177
Fax: +1 847-982-0747
studio-tech.com
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