Studio Technologies StudioComm Model 76D Central Controller with Model 77 Control Console


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Dale #:STUD-M76DM77

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  • The all-digital StudioComm 76D/77 Surround Monitoring System with digital inputs and outputs enables simple and effective monitoring of 5.1 surround and stereo audio material. Comprised of a Model 76D Central Controller and a Model 77 Control Console, this system is ideal for recording, postproduction, and broadcasting applications with digital-input loudspeakers.


    • Digital audio inputs
    • Digital audio outputs
    • Downmix
    • Channel mute/solo
    • Level adjustment, reference level, and dim

    Model 76D Central Controller

    The Model 76D Central Controller is rack mountable and offers two surround (5.1) and three 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. Sample rate conversion (SRC) is available on one input (stereo input C).

    The Model 76D Central Controller provides 16 digital output channels with transformer-coupled outputs and selectable impedance (75 or 110 ohms):

    • Pre-fade surround (5.1)
    • Post-fade surround (5.1)
    • Post-fade stereo (2-channel)
    • Stereo input C direct output

    The Model 76D's sync input allows support for video (bi-level and tri-level), word clock, DARS, and AES3id. In addition, up to 340 milliseconds of digital delay can be selected to compensate for processing delays in an associated video path.

    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 fingertip 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 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.

    One Model 76D Central Controller can support a combination of up to four Model 77 or Model 71 Control Consoles.

  • Model 76D Central Controller  
    General Audio  
    Supported Sample Rates32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz
    Word Length24 bits maximum
    Internal Processing32 bits
    Dynamic Range134 dB
    Digital Audio Inputs Five (18 audio channels)
    Configurationtwo surround (5.1) and three stereo (2-channel)
    TypeAES3id-2001/SMPTE 276M (75 ohms, unbalanced)
    ConnectorsBNC (per IEC 60169-8 Amendment 2)
    Sample Rate Conversion (SRC)  
    Applicationavailable on Stereo Input C
    Sync Input  
    Sourcesvideo (bi-level, tri-level), word clock, DARS (AES11), AES3id
    Jitter4 ns pp maximum
    ConnectorBNC (per IEC 60169-8 Amendment 2)
    Termination75 ohms, selectable on/off
    Digital Monitor Outputsfour (16 audio channels)
    Configurationorganized as two surround (5.1) and two stereo (2-channel)
    TypeAES3id/SMPTE 276M (75 ohms) or AES3 (110 ohms), selectable
    Connector25-pin D-subminiature female
    Configurable Delay 0 to 340 milliseconds @ 48 kHz sample rate (scaled up or down depending on actual sample rate)
    Functions5.1 to stereo, stereo to mono
    Control Console Interface  
    TypeRS-485, 115.2 kbit/s, 8-1-N
    Power12 volts DC, 500 milliamperes maximum
    Connector9-pin D-subminiature female
    Remote Control Inputstwo
    Functionsremote mute all, remote dim
    AC Mains  
    Requirement100 to 230 V, 50/60 Hz, 15 watts maximum
    Connector3-blade, IEC 320 C14-compatible (mates with IEC 320 C13)
    Dimensions (Overall)19.00 inches wide (48.3 cm)
    1.72 inches high (4.4 cm)
    7 inches deep (17.8 cm)
    Mountingone space in a standard 19-inch rack
    Weight6.2 pounds (2.8 kg)
    Model 77 Control Console  
    Applicationup to four Model 77B Control Consoles can be connected to a Model 76DB Central Controller
    Power12 volts DC, maximum current 100 milliamperes, provided by Model 76DB Central Controller
    Control Data  
    Data Rate/ Format115.2 kbit/s, 8-N-1
    Connector9-pin D-subminiature female
    Dimensions (Overall)7.20 inches wide (18.3 cm)
    2.20 inches high (5.6 cm)
    5.40 inches deep (13.7 cm)
    Weight1.7 pounds (0.8 kg)
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