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4WBB - 4 wires beltpack box
compact - battery powered - for headset use

4WBB - 4 wires beltpack box 4WBB - 4 wires beltpack box

 

The 4WBB is a compact battery-powered box for headset use only.
Selectable operating modes suit various applications in a number of studio and outside broadcast situations where 2/4 wires communications are used.

Features

 

 

Description

Direct compatibility with other communications equipment is provided by the use of 4-wires operation as opposed to the more common, 2-wires beltpack systems.
Greater flexibility resulting from 4-wires operation also enables both interrupt and 2-wires modes to be easily selected by user.
The IFB option is typically used to provide an interrupted program feed to a presenter’s earpiece, when the talk switch is pressed, while simultaneously allowing the program sound to be monitored on the headset.
As the signal is switched directly between the input and output connectors, the program signal path is fail-safe and does not require the unit to be powered.
In 2-wires mode, a number of Beltpack units can simply be connected in parallel, enabling all units to communicate with each other in conference mode.
To provide compatibility with earpieces which use a mono jack plug, the tip connection on the headset jack socket supplies the output for the headphones, the ring connection providing the microphone input.
The auxiliary input jack can be used in all modes to monitor any additional line-level signal such as a tape machine playback.

4WBB is compatible with similar apparatuses of other brands in commerce.

Specifications

Microphone input / Line output amplifier

Line input / Headphone amplifier

2-Wires mode

Mechanicals

In accordance with constant improvement policy of products, El.Man (Elettronica Mangione) reserves the right to modify without notice and at any time, features and prices of its own apparatus.