Glensound GSOC24, Wiring Diagram

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GLENSOUND ELECTRONICS LTD
Date 12/12/00 Information Sheet Number WP14-83 Issue Number 1
Page 1 of 1
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GLENSOUND ELECTRONICS LTD. 5&6 BROOKS PLACE, MAIDSTONE, KENT, ENGLAND.
COMMENTATORS BOX TYPE GSOC24
GENERAL INFORMATION
COMPATABILITY
This commentators box is a development from our original GSOC4 commentators box. It is totally compatible with
our previous range of units. It is possible to use this new GSOC24 commentator’s boxes with any of our original
base stations type GSOC3, GSOC5 or GSOC8.
FACILITIES
Our sketch A2-13462 shows the panels of the GSOC24. It has provision for 3 commentators. Each commentator
can listen to 6 different audio sources. They can individually decide at what level and in what ear they wish to
monitor each source. There is a 7
th
hidden source namely talkback, which the commentators are forced to hear.
There are 3 internal presets that are used to set this talkback level to each commentator.
All three Commentators can toggle their microphones on or off to contribute to the main mix. Commentators A &
B can, in addition, talk to their ‘home’ or to the local technician using the co-ordination circuit. When the co-
ordination button is pressed, the commentator’s microphone is automatically disconnected from the mix and fed
instead to the co-ordination circuit. Commentator C has no facility to talk to co-ordination. Input C can however be
switched to accept a line level input such as a tape machine, instead of a microphone. Twelve volt phantom power
can be switched to all 3 microphones. Because phantom power microphones generally have a higher output level
than dynamic microphones, we automatically reduce the mic amp gain when phantom power is switched on.
MIC AMP GAIN
All 3 microphone amplifiers contain a very sophisticated circuit to control the gain. This circuit uses a micro-
controller to continuously monitor the input level and to only alter the mic amp gain after considering a complex
algorithm. In practice this means that you should be able to ignore the gain and let each mic amplifier look after
itself.