Table of Contents
Advertisement
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 person during installation.
The amplifier's "+12 VDC" (positive) and
"Ground" (ground) connections are designed to
accept up to 4 AWG power wire.
Minimum Power / Ground
Wire Size Requirements:
JX250/1D: 8 AWG
JX500/1D: 4 AWG
JX1000/1D: 4 AWG
Note: Smaller AWG numbers mean bigger wire
and vice-versa (1/0 AWG is the largest, 2 AWG is
smaller, then 4 AWG, then 8 AWG, etc.).
The above wire gauge recommendations
assume no other amplifiers are connected
to the same wire. Use larger wire with
a fused distribution block (or separate
wires) for multiple amplifiers.
If you are installing this amplifier with other
amplifiers and wish to use a single main power
wire, use 2 AWG or 1/0 AWG main power wire
(depending on the overall current demands of
all the amplifiers in the system). This 2 AWG
or 1/0 AWG power wire should terminate into a
fused distribution block mounted as close to the
amplifiers as possible and should connect to the
JX monoblock with 4 AWG power wire (8 AWG is
sufficient for the JX250/1D only).
To connect the power and ground wires
to the amplifier, strip 1/2-inch (12 mm) of
insulation from each wire and insert the
bare wire into the appropriate terminal block
positions on the JX250/1D. Use the supplied
JX250/1D • JX500/1D • JX1000/1D
2.5 mm hex wrench to secure the wire via
the screw on the top of each terminal.
The "Ground" connection should be made
using 4 AWG wire (8 AWG is sufficient for
JX250/1D only) and should be kept as short as
possible, while accessing a solid piece of sheet
metal in the vehicle. The surface of the sheet
metal should be sanded at the contact point
to create a clean, metal-to-metal connection
between the chassis and the termination of the
ground wire. The use of a #10 sheet metal screw
and star washer to lock down the connection is
advisable. Alternatively, you can use a specialized
grounding lug, such as the JL Audio XB-MGLU.
Any wires run through metal barriers (such
as firewalls), must be protected with a high
quality insulating grommet to prevent damage
to the insulation of the wire. Failure to do so
may result in a dangerous short circuit.
I M P O R TA N T !
Many vehicles employ small (10 AWG -
6 AWG) wire to ground the battery to the
vehicle chassis and to connect the alternator's
positive connection to the battery. To prevent
voltage drops, these wires should be upgraded
to 4 AWG when installing amplifier systems
with main fuse ratings above 60A.
FUSE REQUIREMENTS
JX250/1D: 30A (AGU or MAXI®)
JX500/1D: 50A (AGU or MAXI®)
JX1000/1D: 80A (AGU, ANL or MAXI®)
An appropriate fuse at the main power wire(s)
to the amplifier(s) is vital for vehicle safety! This
fuse must be installed within 18 inches (45 cm)
of the positive battery post connection. If the JX
monoblock is the only device connected to this
main wire, use the corresponding fuse value listed
above (no other fuse is required in this situation).
When running multiple devices from one
main power wire, the main fuse value and rating
of the main power wire must be high enough
for all of the equipment being run from it. Use a
fused distribution block to split the main power
wire feed to each device, with appropriate fusing
and power wire for each device.
5
Advertisement
Table of Contents
