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Deluxe Music      Fridhemsgatan 40      Stockholm
08-566 31 800
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StudioTechnologies Model 74/75

The 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.

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Art nr: 1048928


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 and 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 and 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 (+27 V nominal, 200 mA maximum) modulated with channel 1 audio (–10 dBu nominal) on pin 2, and channel 2 audio (–10 dBu nominal) on 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-standard 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
Functions: 5.1 to stereo, stereo to mono (mono-to-left-and-right, mono-to-center)
5.1 to Stereo: LS @ –3 dB summed with L; RS @ –3 dB summed with R, C @ –6 dB summed with L and R; LS, RS, and LFE monitor outputs mute
Stereo to Mono (Mono-to-Left-and-Right): L summed with R to L and R or L summed with R to C; attenuation independently configurable; C, LS, RS, and LFE monitor outputs mute
Stereo to Mono (Mono-to-Center): L summed with R to C; attenuation independently configurable; L, R, LS, RS, and LFE monitor outputs mute
Stereo to Mono (Mono-to-Center) Bandpass Filter: 
Response: –3 dB @ 100 Hz and 5 kHz, nominal, 12 dB/octave

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 (mates with IEC 320 C13)
AC Mains Requirement: 100, 120, or 220/240 V, ±10%, factory configured, 50/60 Hz, 26 watts maximum
Dimensions (Overall): 
19.0 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
9.58 inches deep (24.3 cm)
Mounting: one space (1U) in a standard 19-inch rack
Weight: 9.5 pounds (4.3 kg)

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 inches wide (18.3 cm)
2.2 inches high (5.6 cm)
5.4 inches deep (13.7 cm)
Weight: 1.8 pounds (0.82 kg)

Model 35 Talent Amplifier 
Power Requirements: +20-32 Vdc (modulated with left channel audio), provided by Model 74
Power Present LED: red, indicates presence of operating power
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, ¼ -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 inches wide (10.7 cm)
2.0 inches high (5.1 cm)
5.3 inches deep (13.5 cm)
Mounting: desktop; microphone stand mounting adapter included
Weight: 0.8 pounds (0.4 kg)

Specifications subject to change without notice. 



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