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TYPICAL INSTALLATION SEQUENCE
The following represents the sequence
for a typical amplifier installation, using an
aftermarket source unit or OEM Interface
processor (like the JL Audio FiX™ 82 or FiX™ 86).
Additional steps and different procedures may
be required in some applications. If you have any
questions, please contact your authorized
JL Audio dealer for assistance.
1) Disconnect the negative battery post
connection and secure the disconnected cable
to prevent accidental reconnection during
installation. This step is not optional.
2) Run copper power wire from the battery
location to the amplifier mounting
location, taking care to route it in such a
way that it will not be damaged and will
not interfere with vehicle operation. See
next page for appropriate wire size.
3) Connect the power wire to the positive
battery post. Fuse the wire with an
appropriate fuse block (and connectors)
within 18 inches (45 cm) of wire length
from the positive battery post. This fuse
is essential to protect the vehicle. Do not
install the fuse until the power wire has
been securely connected to the amplifier.
4) Run signal cables and remote turn-on wire (if
available) from the source unit or processor to
the final amplifier mounting location.
5) Run speaker cables from the speaker systems
to the amplifier mounting location.
6) Find a good, solid metal grounding point
close to the amplifier and connect the
negative power wire to it using appropriate
hardware (use of the JL Audio ECS master
ground lug, XB-MGLU is recommended).
Use the same size power wire used for the
+12V connection, no longer than 36 inches
(90 cm) from the amplifier to the ground
connection point. In some vehicles, it may
be necessary to upgrade the battery ground
wire. (See next page for important notice.)
7) Securely mount the amplifier using
appropriate hardware.
8) Connect the positive and negative power
wires to the amplifier. A fuse near the amplifier
is not necessary if this is the only device being
4
run from the fused main power wire. If the
fused main power wire is shared with other
amplifiers or devices, fuse each amplifier/
device within 12 inches (30 cm) of wire length,
via a fused distribution block or multiple
individual fuse blocks/on-board fuses.
9) Connect the remote turn-on wire to the
amplifier or configure the "Turn-On Mode"
switch for automatic turn-on.
10) Connect the input cables to the amplifier.
11) Connect the speaker cables to the amplifier.
12) Carefully review the amplifier's control
settings to make sure that they are set
according to the needs of the system.
13) Install the power wire fuse (see next page for
correct value) and reconnect the negative
battery post terminal.
14) Turn on the source unit at a low level
to double-check that the amplifier is
configured correctly. Resist the temptation
to crank it up until you have verified the
control settings.
15) Make necessary adjustments to the "Input
Voltage" and "Input Sens." controls to obtain
the correct overall output and the desired
system balance. See Appendix A (page 12) for
the recommended input sensitivity
setting method.
16) Enjoy the fruits of your labor with your
favorite music.
POWER CONNECTIONS
Before installing the amplifier, disconnect the
negative (ground) wire from the vehicle's battery.
This will prevent accidental damage to the system,
the vehicle and your body during installation.
JL Audio
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