Studio Technologies Model 74 Central Controller & Model 75 Control Console Stereo - 5.1 Surround Monitor with Talkback

ITEM #: STCH-M74-AND-M75 MFG #: M74 AND M75

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M74 AND M75 - Overview

The Studio Technologies M74 AND M75 StudioComm for Surround Model 74 Central Controller and Model 75 Control Console work together to provide 5.1 surround and stereo source monitoring capabilities, along with a full-featured headphone "talkback" cue system. The system is a perfect fit for contemporary facilities that need to perform a variety of audio tasks. These can include surround and stereo mixing and monitoring, live recording of voice, music, and sound effects, and on-air broadcast applications. The system's features were carefully selected to provide extensive capabilities while remaining simple to operate. Of overriding concern is maintaining the quality of the connected audio sources. This is accomplished using a combination of excellent circuit design and carefully selected components. The Model 74/Model 75 combination is ideal for adding surround monitoring capability to disk-based recording systems. It's also well suited for upgrading a post-production or broadcast facility to support multi-channel monitoring.

  • Features:

    • Supports 5.1 surround and stereo audio signals
    • Analog inputs
    • Analog outputs
    • Integrated headphone cue system
     

  • Specifications:

    • Model 74 Central Controller
      General Audio:
    • Frequency Response: 20 Hz-20 kHz ±0.1 dB (down 0.5 dB @60 kHz), monitor outputs
    • Distortion (THD+N): 0.04%, measured at 1 kHz, +4 dBu, monitor outputs
    • S/N Ratio: 87 dB, ref +4 dBu out, 20 Hz-20 kHz, monitor outputs
    • Crosstalk: 78 dB, typical, ref +4 dBu in, 20 Hz-20 kHz, monitor outputs
    • Audio Inputs: 16, organized as two 6-channel "5.1" inputs & two 2-channel "stereo" inputs
    • Type: electronically balanced, compatible with balanced or unbalanced sources
    • Impedance: 24 k ohms
    • Nominal Level: -12 dBV to +6 dBu, adjustable
    • Level Calibration: 15-turn trim potentiometers
      Monitor Outputs: 2, 6-channel:
    • Type: electronically balanced, compatible with balanced or unbalanced loads
    • Maximum Level: +27 dBu into 10 k ohms, +26 dBu into 600 ohms
      Talent Amplifier Output:
    • Compatibility: provides power & audio signals for up to four Model 35 Talent Amplifiers
    • Type: DC power with two channels of unbalanced audio
    • Connections: common on pin 1, DC modulated with channel 1 audio on pin 2, & channel 2 audioon pin 3
      Line-Level Cue Output: 1, stereo:
    • Nominal Level: +4 dBu, nominal
    • Type: electronically balanced, capacitor-coupled, intended to drive balanced or unbalanced loads of 600 ohms or greater
    • Source Impedance: 100 ohms, nominal
    • Maximum Level: +20 dBu into 10 k ohms
      Line-Level Talkback Input:
    • Level: +4 dBu, nominal
    • Type: electronically balanced
    • Impedance: 24 k ohms, nominal
      Infrared Receiver Input:
    • Type: intended for use with industry-st&ard receiver module; data rate 650 baud
      Remote Control Inputs: 4
    • Type: +5 Vdc logic, activates on closure to system common
    • Functions: mute, dim, talkback, input select
      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 & R; LS, RS, & LFE monitor outputs mute
    • Stereo to Mono: L summed with R to L & R or L summed with R to C; attenuation independently configurable; C, LS, RS, & LFE monitor outputs mute
    • Stereo to Mono: L summed with R to C; attenuation independently configurable; L, R, LS, RS, & LFE monitor outputs mute
      Stereo to Mono (Mono-to-Center) B&pass Filter:
    • Response: -3 dB @100 Hz & 5 kHz, nominal, 12 dB/octave
      Connectors:
    • Audio: 4, 25-pin D-subminiature female
    • Talent Amplifier Output: 3-pin male XLR-type
    • To/From Model 75: 9-pin D-subminiature female
    • Remote Control Inputs: 9-pin D-subminiature female
    • Infrared Receiver Input: 3.5 mm 3-conductor jack
    • AC Mains: 3-blade, IEC 320 C14-compatible, AC Mains Requirement: 100, 120, or 220/240 V, ±10%, factory configured, 50/60 Hz, 26 watts max
      Dimensions (Overall):
    • 19.0" wide, 1.72" high, 9.58" deep
    • Mounting: one space (1U) in a st&ard 19-inch rack
    • Weight: 9.5 lbs

      Model 75 Control Console
    • Application: supports Model 74 Central Controller
    • Power: provided by Model 74 Central Controller
    • Output Data: generates MIDI system-exclusive messages
    • Connector: 9-pin D-subminiature female
      Dimensions (Overall):
    • 7.2" wide, 2.2" high, 5.4" deep
    • Weight: 1.8 lbs

      Model 35 Talent Amplifier
    • Power Requirements: +20-32 Vdc, provided by Model 74
    • Power Present LED: red, indicates presence of operating power
      Connectors:
    • Input (from Model 74): 3-pin XLR-type, female
    • Loop Thru: 3-pin XLR-type, male, connected in parallel with input connector
    • Headphone Outputs: 2, 1/4-inch, 3-conductor (stereo) phone jacks
      Headphone Output: 1, feeds two headphone jacks:
    • Load: intended for connection to one or two pairs of headphones with total impedance of 75 ohms or greater
    • Output Level: user adjustable
    • Maximum Output Voltage: 16 Vpp into 150 ohms @1% THD+Noise, 400 Hz
    • Distortion (THD+N): 0.03%
    • Frequency Response: 20 Hz-20 kHz ±0.5 dB
      Dimensions (Overall):
    • 4.2" wide, 2.0" high, 5.3" deep
    • Mounting: desktop; microphone st& mounting adapter included
    • Weight: 0.8 lbs
     

  • Item Includes:

    • 1x Model 74 Central Controller
    • 1x Model 75 Control Console
     

Required Accessories

M74 AND M75 - Required Accessories

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