Studio Technologies StudioComm 76D/77 Surround Monitoring System

$3,400.00
PA SKU # STU M76DANDM77 MFR # M76D/M77
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  • 5.1 Surround Monitoring System with Digital I/O

5.1 Surround Monitoring System with Digital I/O

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.

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.
  • Digital audio inputs
  • Digital audio outputs
  • Downmix
  • Channel mute/solo
  • Level adjustment, reference level, and dim
  • Model 76D Central Controller
  • General Audio:
  • Supported 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: five (18 audio channels)
  • Configuration: 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:
  • Sources: video (bi-level, tri-level), word clock, DARS (AES11), AES3id
  • Jitter: 4 ns (p-p) maximum
  • Connector: BNC
  • Termination: 75 ohms, selectable on/off
  • Digital Monitor Outputs: four (16 audio channels)
  • Configuration: 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
  • Configurable Delay: 0 to 340 milliseconds @ 48 kHz sample rate
  • Downmix: 5.1 to stereo, stereo to mono
  • Control Console Interface:
  • Type: RS-485, 115.2 kbit/s, 8-N-1
  • Connector: 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
  • Connector: 3-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)
  • Mounting: one space in a standard 19-inch rack
  • Weight: 6.2 pounds (2.8 kg)
  • Model 77 Control Console
  • Application: up to four Model 77 Control Consoles can be connected to Model 76D Central Controller
  • Power: 12 volts DC, maximum current 100 milliamperes, provided by Model 76D Central Controller
  • Control Data:
  • Type: RS-485
  • Data Rate/Format: 115.2 kbits/s, 8-N-1
  • Connector: 9-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)
  • Weight: 1.7 pounds (0.8 kg)
  • Model 71 Control Console
  • Application: up to three Model 71 Control Consoles can be connected to a Model 76D Central Controller
  • Power: 12 volts DC, 35 milliamperes maximum, provided by Model 76D Central Controller
  • Control Data:
  • Type: RS-485
  • Data Rate/ Format: 115.2 kbit/s, 8-N-1
  • Connector: 9-pin D-subminiature female
  • Dimensions (Overall):
  • 3.20 inches wide (8.1 cm)
  • 2.20 inches high (5.6 cm)
  • 4.10 inches deep (10.4 cm)
  • Weight: 0.8 pounds (0.4 kg)
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