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8
XIA3145 OPERATION
Configuration/Setup
The input level control (gain) is used to obtain the best
possible match between the head unit audio output and
the amplifier input. Begin by turning the input level control
fully counterclockwise. Next, turn up the head unit volume
control around 3/4 of the way up. Adjust the input level
control clockwise until audible distortion is heard, then
slightly counterclockwise to provide the best match.
The crossover is used to filter out frequencies above or
below a certain point. Choose
LPF when using the amplifier
with subwoofers,
HPF when using with midrange/tweeter
combinations and
FULL when using with coaxial-type
speakers.
NOTE:
Choose FULL when using the amplifier in stereo/bridged
simultaneous mode. In this mode, passive crossovers are
required. Failure to use the correct passive components
may damage the amplifier and/or speakers. Consult a
qualified professional for recommendations.
This control allows precise adjustment of the crossover
frequency.
This control provides additional boost @ 45Hz when used
with subwoofers. Adjust this control with caution - as
improper use can damage speakers!
The LED indicator illuminates green during normal
operation (
POWER) and red when the amplifier detects a
fault (
PROTECT).
Input level Control
Crossover Mode
Crossover Frequency Control
Bass Boost
LED Indicator