Bedienungsanleitung JL Audio 1D (Seite 3 von 37) (Englisch)

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4 JL Audio JX250/1 • JX500/1D • JX1000/1D 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 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:

JX250/1: 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 JX250/1 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 JX250/1. 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 wire (8 AWG is sufficient for

JX250/1 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.

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 when installing amplifier systems

with main fuse ratings above 60A.

FUSE REQUIREMENTS

JX250/1: 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.

PRODUCT DESCRIPTION

JL Audio JX monoblock subwoofer

amplifiers are specifically designed to drive

subwoofers. Their frequency response is

limited to the range below 150 Hz., making

them unsuitable for driving midrange speakers

or tweeters. For detailed specifications,

please refer to Appendix B (page 13).

TYPICAL INSTALLATION SEQUENCE

The following represents the sequence

for a typical amplifier installation, using an

aftermarket source unit or OEM Interface

product. 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 re-connection during

installation. This step is not optional!

2) Run 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 power wire to the positive battery

post. Fuse the wire with an appropriate fuse

block (and connectors) within 18 inches (45

cm) wire length of the positive battery post.

This fuse is essential to protect the vehicle.

Do not install the fuse until the power wire

has been connected to the amplifier.

4) Run signal cables (RCA cables) and remote

turn-on wire from the source unit to the

amplifier mounting location.

5) Run speaker wire 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 the same size power wire

used for the +12V connection, no longer

than 36 inches (90 cm) from the amplifier's

ground (GND) connector to the ground

connection point. In some vehicles, it may

be necessary to upgrade the battery ground

wire. (See page 5 for important notice).

7) Securely mount the amplifier using

appropriate hardware.

8) Connect the positive and negative power

wires to the amplifier.

9) Connect the remote turn-on wire

to the amplifier.

10) Connect the input cables

to the amplifier.

11) Connect the speaker wires 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 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

sensitivity controls to obtain the right

overall output and the desired balance

in the system. See Appendix A (page 12)

for the recommended input sensitivity

setting method.

16) Enjoy the fruits of your labor with your

favorite music.

JL Audio 1D Seite 3

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