Using The Crossfader; Auxiliary Send; Aux Input; Inserts - audiophony GOA9C Manual De Instrucciones

4.4. Using the CROSSFADER

The GOA9C provides a short travel sliding potentiometer placed horizontally. This potentiometer
is called crossfader (38) and enables a direct mixing of the signals present at any inputs (except auxiliary
channel). This allows the DJ to prepare the mix and simply crossfade back and forth between them.
Two pushbuttons on each channel let you assign that channel to either side of the Crossfader. A
(10) sends the signal to side A and B (11) to side B of the crossfader. Two corresponding LED indicators
help to identify which cannel is assigned to what side of the Crossfader.
If none of these two switches is activated, the signal bypasses the crossfader circuit and passes
directly to the main mix bus and the corresponding MIX LED lights up. These switches also serve when
assigning the talkback activation channel(s) (see paragraph 4.8).
The GOA9C CROSSFADER is based around an electronic VCA circuit that greatly extends its life
and additionally has the great advantage of being removable and replaceable by yourself. To do so, just
follow these instructions:
1 - Remove the screws of the plate that hold the CROSSFADER.
2 - Remove the set from the mixer.
3 - Detach the multipin connector.
4 - Replace the whole set or remove the screws that tie the potentiometer.
5 - Tie the new potentiometer and the associated printed circuit and multipin connector to the
plate.
6 - Attach the multipin connector.
7 - Place the set on the mixer.
8 - Fix the screws of the plate.

4.5. Auxiliary send

The GOA9C is equipped with a stereo bus of auxiliary sends, AUX (6). This send is factory
preadjusted to postfader, this is, any change on the channel fader (12) affects the level present at the
output of the auxiliary bus AUX OUT (53). This setting can be internally modified and converted to
prefader by simply changing a jumper, as seen in the configuration diagram.

4.6. AUX input

An AUX INPUT (13, 48) allows the return of the signal once it has been processed by an external
effect. This input can also be used as a regular 0dBV LINE level input. The bus to which it is assigned
can be configured with internal jumpers (see configuration diagram). It is factory preadjusted to PGM
bus.

4.7. Inserts

Plugging a 6,35 mm stereo jack to the INSERT connector (there is a connector for each of the L
left and R right channels (41, 42), the microphone signal can be redirected to a particular effect for that
input only. Sleeve is ground, tip is send and ring is return. If you use a mono jack, instead of a stereo
one, with the ring short circuited to ground there are two new applications:
- If you plug the jack fully in, this works as an output, having a post-preamplifier signal and cutting its way
to the main mix bus.
- Plugging the jack "halfway in", only to the "first click", you get a direct post-preamplifier signal, but the
sound ALSO goes its way to the main mix bus.
- Whether the signal is mono (mic) or stereo (line) insertion should be done with two jacks, one per
channel.
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