4.8. Talkover
Assignment: The channels that have both A and B simultaneously depressed (MIC indicator lit)
automatically reduce the signal level of the channels that have the crossfader buttons in any other
position and of course have open faders. This happens at the first voice "hit" of the DJ or speaker on the
microphone plugged to the channel with both A/B buttons pressed. When the DJ stops talking the music
level comes up to the initial level.
Usage: The talkover is enabled through the ON (32) switch, and has efficiency, LEVEL (37), main
signal level attenuation (between 0 and 30 dB) and recovery time, RELEASE (39), the time necessary
for a progressive come back to the original level (between 0,1 and 3 sec).
4.9. Outputs
The GOA9C mixer has two independent outputs, MASTER A and MASTER B. Each one has its
own volume control, with a sliding fader for MASTER A (33), and a rotary one for the MASTER B (26).
Both outputs have a dedicated balance control BAL (29, 23).
You must be careful when setting up the general output level of the mixer. The "clip" display of
the connected power amplifiers must never remain permanently lit, but do it only occasionally by
following the rhythm of the bass signals that are being played.
The GOA9C mixing unit is factory adjusted at 0dBV/1V, although this output can be internally
modified to +6dBV/2V. See configuration diagram.
The MASTER A output (56, 57) is balanced or symmetrical, and the pin-out of the connector is as
follows:
Hot or direct signal
Cold or inverted signal
Ground
The balanced circuit simulates an output transformer, so if you wish to use MASTER A in non-
balanced mode, you should short circuit the unused pin to ground. Otherwise, the signal will not have an
appropriate level and quality.
The MASTER B output (58) is non-balanced or asymmetrical.
It also has two independent A/B Aux outputs with 0dBV output level.
The GOA9C has two recording outputs: REC1 (52), which is pre-talkover, i.e. no signals which
activate the talkover (both A/B buttons pressed and MIC indicator lit) are passed to this output, so no
attenuation occurs, and REC2 (54), which is influenced by the talkover.
Finally, a MONO (30) switch that converts an stereo signal into a monophonic one or sends one
side to both channels. This switch affects the outputs MASTER A, MASTER B, and REC2.
AUX OUT (53) provides an output for the auxiliary bus (see paragraph 4.5).
The CONTROL ROOM output (55) allows for easy monitoring along with an external amplification
system and carries the very same signal as the PHONE output.
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Pin 2
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Pin 3
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Pin 1