from
Model 50
&
Model 51
Monitoring & Communications for Audio Production Applications
The Model 50 Central Controller and the Model 51 Control Console are part of the StudioComm
family of products. StudioComm equipment is used in audio production facilities that lack fl ex-
ible monitoring and communications. Model 50 and Model 51 features include control room and
studio monitoring, meter output, integrated headphone (cue) system, and dub (copy) output.
Communications functions include talk to studio, talk to headphones, and slate. StudioComm
products perform to a level rivaling most large consoles, while actually surpassing them in terms
of fl exibility. With these features, StudioComm products can dramatically increase production
effi ciency.
Many features are
user configurable
Independent
Source Selection
• Control Room
• Headphones
• Dub
7 Stereo
Line Inputs
Built-in microphone for talk to studio,
talk to headphones, and slate
Studio Monitoring
• On/Off
• Level
Control Room Monitoring
• Mono
• 2 Outputs
• Dim
• Level
Model 50 Central Controller Front Panel
Status Indicators
Model 51 Control Console Front Panel
Stereo Line Input 7;
LED indicates +4 dBu
configuration
Communications
• Talk to Studio
• Talk to Headphones
• Slate
Dub Output; LED
indicates +4 dBu
configuration
Overview
The Model 50 Central Controller and the Model 51 Control Console work together to provide
the features and fl exibility that help reduce the time and cost of audio production. A complete
system consists of a rack-mounted central controller, a desktop control console, and one or more
talent amplifi ers. The Model 51 is connected to the Model 50 with a 5-pin, 5-conductor, MIDI-
type cable. The units communicate using system-exclusive MIDI messages.
Model 50
Model 50 Central Controller
The Model 50 is the connection point for all audio inputs and outputs, and provides power for
the Model 51 and the talent amplifi ers. Front panel LEDs indicate the functional status of the
Model 51 and the talent amplifi ers, and data fl ow from the Model 51.
Seven Stereo Line Inputs
The analog outputs of workstations, DAT recorders, optical CD recorders, CD players, casse e
decks, or virtually any analog source can be connected to the Model 50’s line inputs. The inputs
accept balanced or unbalanced signals, and can be individually confi gured for either –10 dBV
or +4 dBu operating levels. Each input can also be confi g-ured to accept a stereo or mono signal.
Inputs 1 through 6 are on the back panel. For temporary patch convenience, input 7 is on the
front panel.
Monitor Outputs
The Model 50 contains two sets of balanced stereo line level outputs for control room monitors
and one set for studio monitors.
Dub Output
A balanced stereo line output is provided for dub (copy) use. The dub output is available from
either the back or the front panel of the Model 50, and can be switched between –10 dBV and
+4 dBu operating levels.
Meter Output
The meter output provides a stereo line-level signal that “follows” the source selected for the
control room. The signal is not aff ected by the control room level circuitry, but does refl ect the
monaural function. The meter output is intended to be connected to VU- or PPM-type meter
panels that contain series current-limiting resistors or input buff er amplifi ers.
Headphone Output
The headphone (cue) output is designed to feed up to four StudioComm talent amplifi er mod-
ules. The output is a 3-conductor XLR-type connector that provides power and le and right
audio to the talent amplifi ers. The Model 70 Interface is available to convert the talent amplifi er
output to separate le and right balanced line outputs.
Model 50 Central Controller Back Panel
To/From Model 51
Control Console
Meter Output and
Mic Module
Output to Talent
Amplifiers
Dub Output Control Room
Studio Output
A & B Outputs
Stereo Line Inputs 1 to 6
StudioComm from Studio Technologies, Inc. Model 50 & Model 51
Model 51
Model 51 Control Console
The Model 51 provides a small but comfortable command center. All routing, switching, and
level adjustment functions are located on the control console. Numerous LEDs provide complete
status information. The Model 51’s unique confi gure mode provides extensive fl exibility.
The Model 51 contains an electret condenser microphone located near the top of the console for
convenient wide-range voice pickup. Inputs for remote talk to studio and talk to headphones
switches are provided on the back panel.
Routing and Switching
Any of the seven line inputs can be sent to the control room monitors, studio monitors, headphones, or dub. The studio monitor can be set to follow either the control room or the headphone
source. Level adjustment, mono, output select switching, and confi gurable dim are provided for
the control room monitors. The studio monitors have a level adjustment and on/off controls.
Communications
Three separate communications functions, each with independent level control, are provided:
talk to studio, talk to headphones, and slate. Talk to studio interrupts the studio source and sends
voice audio. Talk to headphones either interrupts the headphone source, or blends voice audio
with the headphone source. Slate has two operating modes: sending voice to the dub output, or
sending voice to the dub output and the headphone output. If confi gured, slate can send a 50 Hz
tone along with voice audio.
Model 35
Headphone Monitoring
The StudioComm series also includes the Model 35 Talent Amplifi er, a full-featured headphone
amplifi er (cue) module that drives high-impedance headphones (>150 Ω). The audio is loud
and very clean. Up to four Model 35s can be connected to the Model 50 using a single 3-pin
microphone-type cable; no external power source is needed.
Model 35 Talent Amplifier Front Panel
Headphone output
level control
Switch between
stereo and mono
(L+R) output
2 Headphone
Outputs
Model 35 Talent Amplifier Back Panel
Connects to additional
talent amplifiers
Connects to Model 50
or another talent amplifier’s
loop thru connector
Model 50 & Model 51 StudioComm from Studio Technologies, Inc.
Specifications
Model 50
&
Model 51
Model 50 Central Controller
Audio Inputs: 7, stereo
Connectors: ¼
Type: electronically balanced, compatible with balanced
or unbalanced signals
Impedance: 24 k ohms
Nominal Input Level: –10 dBV or +4 dBu
Outputs: 2, control room; 1, studio
Type: electronically balanced, stereo
Maximum Output Level: +27 dBu into 10 k ohms, +26 dBu
into 600 ohms
Frequency Response: 10 Hz-40 kHz +0/–0.5 dB (down
1 dB @ 80 kHz)
Distortion (THD+N): 0.03%
S/N Ratio: 87 dB (20 Hz-20 kHz)
Dub Output: 1, stereo
Type: electronically balanced
Nominal Output Level: –10 dBV or +4 dBu
Maximum Output Level: +27 dBu into 10 k ohms, +26 dBu
into 600 ohms
Frequency Response: 10 Hz-40 kHz +0/–0.5 dB (down
1 dB @ 80 kHz)
Distortion (THD+N): 0.004%
S/N Ratio: 92 dB (20 Hz-20 kHz)
Slate Tone: 50 Hz sine wave
Meter Output: 1, stereo
Type: unbalanced
Nominal Output Level: +4 dBu
Maximum Output Level: +21 dBu into 10 k ohms
Frequency Response: 10 Hz-40 kHz +0/–0.5 dB (down
1 dB @ 70 kHz)
Distortion (THD+N): 0.004%
S/N Ratio: 92 dB (20 Hz-20 kHz)
Talent Amplifi er Output: provides power and audio
signals for up to four Model 35 Talent Amplifi ers
AC Mains Requirement: 100, 120, or 220/240 V, ±10%,
factory confi gured, 50/60 Hz
Dimensions (Overall):
19.00 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
8.75 inches deep (22.2 cm)
Mounting: one standard rack space
Weight: 8.9 pounds (4.1 kg)
-inch, 3-conductor phone jacks
Model 51 Control Console
Output Data: generates MIDI system-exclusive messages
Internal Microphone: electret condenser
External Communications Contacts: normally open for
talk to studio and talk to headphones
Dimensions (Overall):
7.4 inches wide (18.8 cm)
2.6 inches high (6.6 cm)
7.3 inches deep (18.5 cm)
Weight: 2.5 pounds (1.1 kg)
Model 35 Talent Amplifier
Load: intended for connection to one or two pairs of
headphones with total impedance of 75 ohms or greater
Maximum Output Voltage: 16 V peak-to-peak into 150
ohms @ 1% THD+Noise
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)
Weight: 0.8 pounds (0.7 kg)
Model 70 Interface
Connectors: 3-pin XLR-type, 1 female, 3 male
Line Output: 1, stereo
Type: electronically balanced
Nominal Output Level: +4 dBu
Maximum Output Level: +20 dBu into 10 k ohms, +19 dBu
into 600 ohms
Frequency Response: 20 Hz-20 kHz +0/–0.5 dB
Distortion (THD+N): 0.02%
Dimensions (Overall):
4.2 inches wide (10.7 cm)
2.0 inches high (5.1 cm)
5.3 inches deep (13.5 cm)
Weight: 0.8 pounds (0.4 kg)
Specifi cations subject to change without notice.
For further information on the StudioComm series please contact:
Studio Technologies, Inc.
5520 West Touhy Ave.
Skokie, Illinois 60077 USA
Telephone (847) 676-9177
Fax (847) 982-0747
www.studio-tech.com
50062-0805, Issue 4
Loading...