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he C10 HD console contains an in-built talkback microphone and amplifier. The microphone is located next to the main
monitor level pot on the centre-control tile. The output is balanced and at line level (approximately 0dB) and the circuit
features an inbuilt compressor. See following page for TB gain adjustment information.
• The TB output signal is provided on an %5/32'1+ connector fitted to the console connector panel.
• Install a single balanced audio cable between the Talkback Output XLR and the facility’s comms system and/or an
a
nalogue input circuit on an I/O unit (RIO or Alpha-Link LIVE). The input circuit number chosen can then be
assigned as the talkback source via the console touchscreen.
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The talkback microphone level is factory adjusted to provide an output level of approximately 0dBu during typical speech
volume. The input gain of a comms system should be adjusted to match this level.
If adjustment of the TB output level is necessary then presets for microphone gain and limiter threshold are available on
the rear of the master controls panel in the centre section.
Note that the compressor threshold may need to be increased – by turning preset VR1 clockwise – BEFORE attempting to
increase the amplifier gain, VR2.
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The C100 HDS provides an inbuilt software oscillator. The oscillator signal can be assigned to any console output without
the need for external cabling.
Alternatively, external hardware oscillators (either analogue or digital, mono, stereo or 5.1) may be supplied. In this
configuration one or more circuits should be allocated on the appropriate analogue or digital input connector; these signals
can then be allocated as the oscillator inputs via the touchscreen.
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