Bedienungsanleitung JL Audio JX400 (Seite 5 von 72) (Englisch)

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JX400/4D 5

ENGLISH

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.

+12 VDC Ground

Remote

CH. 3

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CH. 4

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CH. 1

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CH. 2

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BridgedBridged

The JX400/4D’s “+12VDC” and “Ground”

connections are designed to accept 4 AWG

power wire. 4 AWG copper wire is a minimum

power wire size for this amplifier. We do

not recommend the use of "Copper-Clad

Aluminum", or "CCA" wire.

If you are installing the JX400/4D with other

amplifiers and wish to use a single main power

wire, use 2 AWG, or larger, copper main power

wire (depending on the overall current demands

of all the amplifiers in the system). This 2 AWG

or larger power wire should terminate into a

fused distribution block mounted as close to the

amplifiers as possible and should connect to the

JX400/4D with 4 AWG copper power wire.

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.).

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 the appropriate terminal block

positions on the JX400/4D. Use the supplied

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 copper wire 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.

IMPORTANT!

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 copper wire when installing

amplifier systems with main fuse ratings above

60A.

FUSE REQUIREMENTS

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

JX400/4D is the only device connected to this

main wire, use a 40A AGU or MAXI® fuse (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.

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