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12
100 IWSUB8
™
AMPLIFIER
User manual
Automatic timed power on / off
This subwoofer amplifier has an automatic audio signal detection system. When the switch is set to
“AUTO”, the sub will turn on immediately when an audio signal is detected at the input. In "ON” mode, the
detector is inactive and the subwoofer remains permanently on. On the other hand, if no signal is detected
coming into the subwoofer after approximately 15 minutes, the detection system will automatically place
the subwoofer in stand-by mode. In the event of prolonged absence for several days, we recommend
turning the power switch to "OFF". In the event of a storm, unplug the mains cable.
Quick adjustment
Set the crossover knob
5
to the middle position for use in stereo, or to LFE for use with a primary audio-
video amplifier on an LFE output.
Adjust the volume knob
3
to halfway.
Fine adjustment
• Adjust the bass level depending on the other speakers used. This adjustment can be done by using as
varied music programs as possible. The bass should be present without being too heavy.
• Adjust the phase
4
(0° to 180°). The correct position is the one that subjectively provides the highest and
most balanced bass level.
• Fine tune the cut-off frequency as needed. The lower this value is set to, the deeper and fuller the bass
will sound. The higher it is, the more forceful the impacts will be. The settings are correct when all these
features are simultaneously achieved.
• Adjust the volume setting again as required.
Cable choice
To connect the subwoofer amplifier to the main amplifier, use a shielded RCA / RCA cord of an appropriate
length. If in doubt, ask your retailer to advise you on the best solution for your needs.
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