IntroductionThe Model 55 Central Controller and the Model 56 Control Console are part of the StudioComm family of products. StudioComm equipment is used in audio production facilities that lack flexible monitoring and communications. Model 55 and Model 56 features include control room monitoring, meter output, integrated headphone (cue) system, and dub (copy) output. Communications functions include talk to headphones and slate. StudioComm products perform to a level rivaling most large consoles, while actually surpassing them in terms of flexibility. With these features, StudioComm products can dramatically increase production efficiency.
FeaturesModel 55 Central Controller
The Model 55 is the connection point for all audio inputs and outputs, and provides power for the Model 56 and the talent amplifiers. Front panel LEDs indicate the functional status of the Model 56 and the talent amplifiers, and data flow from the Model 56.
Four Stereo Line Inputs
The analog outputs of workstations, DAT recorders, optical CD recorders, CD players, cassette decks, or virtually any analog source can be connected to the Model 55's line inputs. The inputs accept balanced or unbalanced signals, and can be individually configured for either –10 dBV or +4 dBu operating levels. Each input can also be configured to accept a stereo or mono signal.
Control Room Output
The Model 55 provides a balanced stereo line level output for driving a power amplifier associated with control room monitor loudspeakers.
Dub Output
A balanced stereo line output is provided for dub (copy) use. The dub output 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(s) selected for the control room. The signal is not affected by the control room level circuitry, but does reflect 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 buffer amplifiers.
Headphone Output
The headphone (cue) output is designed to feed up to four StudioComm talent amplifier modules. The output is a 3-conductor XLR-type connector that provides power and left and right audio to the talent amplifiers.
Model 56 Control Console
The Model 56 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 56’s unique configure mode provides extensive flexibility.
The Model 56 contains an electret condenser microphone located near the top of the console for convenient wide-range voice pickup.
Control Room and Meter Outputs
Any one of the four line inputs can be sent to the control room and meter outputs. For special applications the system can be configured to allow two sources to be selected simultaneously. Level adjustment, mono, and configurable dim are provided for the control room output, while the meter output is only affected by the mono function.
Communications
Two communications functions, each with independent level control, are provided: talk to headphones and slate. Talk to headphones interrupts the headphone source and sends voice audio. Slate has two operating modes: sending voice to the dub output, or sending voice to the dub output and the headphone output.
Dub Output and Headphone Monitoring
Any one of the four line inputs can be independently sent to the dub and headphone (talent amplifier) outputs. Up to four Model 35 Talent Amplifiers can be connected to the Model 55 using a single 3-pin microphone-type cable; no external power source is needed. The Model 35 is a full-featured headphone amplifier module capable of driving high-impedance headphones (>150 Ω). The audio is loud and very clean.
Downloads Model 55/56 Data Sheet
Model 55/56 User Guide
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