Soundigital LINHA EVOLUTION Owner's Manual page 2

To avoid unwanted noise in the system, join the
ground points of the equipment and audio output to
only one point.
After the end of the electrical installation, connect the
negative cable of the battery and, before starting the
audio system, check if all connections are correctly
done.
In order to adjust the gain, use the headunit volume in
70% of its total, play a musical program of your
preference and turn up the gain until the clip led blinks.
Set the gain in a position where the " CLIP " LED
doesn't blink.
Some headunits with strong signal output may reach
max power even when the gain is next to its minimum.
In that case, limit the volume of the headunit right
before the point where the clip led starts blinking.
Gain positioning over the correct
spot may cause noise, trigger
protection state or damage to the
speakers.
Adjust the Low and High pass filters according to your
preference and needs of the speakers. If you have
any doubts, talk to the speakers manufacturer.
If you need to increase the bass response, adjust the
frequency and gain of the bass boost according to
your preference. Make sure the " CLIP " LED does not
blink with the new setting.