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- 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.

4.8. Talkover

Assign: The channels whose switchers XFA and XFB are simultaneously pushed
automatically reduce the existing signal level in the channels in which the crossfader switchers are in
any other position and, of course, the faders are open. This happens just at the first voice "hit" of the
DJ or speaker on the microphone plugged to the channel which is assigned to the Talkover. When
the DJ stops talking the music level come up to the initial level.
Operation: A general switch ON (37) enables the talkover. The controls are efficiency, EFF
(38), main signal level attenuation (between 0 and 30dB) and recovery time, REC TIME (39), the
necessary time for a progressive come back to the original level (between 0,5 and 2 sec).

4.9. Outputs

The MAC90i mixer has two independent outputs, OUT1 and OUT2. Each one has its own
volume control, with a sliding fader for the main output (32), and a rotary one for the output 2 (19).
Each of the outputs also has its own balance control (18 and 29).
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 lighten up, but do it
occasionally by following the rhythm of the bass signals that are being played.
The MAC90i mixing unit is factory adjusted at 0dBV/1V, although this output can be
internally modified to -10dBV/0.316V, +4dBV/1.6V or +6dBV/2V. See 4.10.2.
The OUT1 (42, 43) output is balanced, with the following pin sheme:
Hot or direct signal
Cold or inverted signal
Ground
The balancing circuit simulates a transformer, so if you want to use OUT1 in non balanced
mode you must short circuit to ground the pin from the non-used output, else the output signal will
not have the desired level nor quality.
OUT2 (44) output is NON-BALANCED OR ASYMMETRICAL.
There are also two independents auxiliary XFA/XFB outputs, internally adjustable to
-10dBV/0.316V, 0dBV/1V,+4dBV/1.6V or +6dBV/2V. The factory preset is 0dBV. See 4.10.2.
The MAC90i has two recording outputs: REC1 (48) before the talkover (no channel signal
is present so it does not activate the talkover and so it does not attenuate the output) and REC2 (45)
which is affected by the talkover.
Finally, a L+R (31) switcher converts the stereo signal into mono or makes it present to
only one of the two channels. This switcher affects the OUT1, OUT 2 and REC 2 signals.
There is also an AUX OUT from the auxiliary mix bus (see 4.5).
The CUE (46) output allows you to perform monitoring through an external amplification
system. The same signal is present at the HEADPHONES output.
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