Bedienungsanleitung JL Audio G1700 (Seite 3 von 11) (Englisch)

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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.

The G1700’s “+12VDC” and “Ground”

connections are designed to accept 4 AWG power

wire. 4 AWG is a minimum power wire size for

this amplifier.

If you are installing the G1700 with other

amplifiers and wish to use a single main power

wire, use 4 AWG or larger main power wire for

systems with total power up to 700W or 2 AWG

wire for systems between 700W and 1400W,

or 1/0 AWG wire for systems with more than

1400W. This main power wire should terminate

into a distribution block mounted as close to

the amplifiers as possible. The output of the

distribution block will connect to the G1700 with

4 AWG 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 wires to the amplifier,

first back out the set screw on the top of the

terminal block, using the supplied 2.5 mm hex

wrench. Strip 1/2 inch (12 mm) of insulation from

the end of each wire and insert the bare wire into

the terminal block, seating it firmly so that no

bare wire is exposed. While holding the wire in

place, tighten the set screw firmly, taking care not

to strip the head of the screw.

The ground connection should be made using

the same gauge wire as the power connection

(4 AWG) 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. For

optimal grounding, we recommend the use of a

JL Audio ECS master ground lug (XB-MGLU).

Alternatively, a sheet metal screw or bolt can be

used with a star washer.

Any wires run through metal barriers (such

as firewalls), must be protected with a high

quality rubber grommet to prevent damage to the

insulation of the wire. Failure to do so may result

in a dangerous short circuit.

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

It is absolutely vital that the main power

wire(s) to the amplifier(s) in the system be

fused within 18 inches (45 cm) of the positive

battery post connection. The fuse value at each

power wire should be high enough for all of the

equipment being run from that power wire. If

only the G1700 is being run from that power wire,

we recommend a 50A fuse be used. AFS (small

blade fuse) or MaxiFuse™ (big plastic-body fuse)

types are recommended.

No fuse is required or recommended directly

before the amplifier power connection. If one is

desired, we recommend the use of a 50A AFS or

MaxiFuse™ type.

PRODUCT DESCRIPTION

The JL Audio G1700 is a monoblock subwoofer

amplifier utilizing proprietary and patented

Class D technology. Its frequency response

is limited to the range below 250 Hz. It is not

designed for driving midrange speakers or

tweeters. Every aspect of its operation has been

optimized for low-frequency amplification.

For detailed specifications, please refer to

Appendix C (page 13).

TYPICAL INSTALLATION SEQUENCE

The following represents the sequence

for a typical amplifier installation, using an

aftermarket source unit or OEM Interface

processor (like the CleanSweep CL441dsp).

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 (minimum 4 AWG) 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. Use 4 AWG

or larger power wire and a power distribution

block if additional amplifiers are being

installed with the G1700.

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 securely connected to the amplifier.

4) Run signal cables and remote turn-on wire

from the source unit 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 as the wire

connected to the “+12VDC ” connection

(minimum 4 AWG), 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 page 5 for important notice).

7) Securely mount the amplifier.

8) Connect the positive and negative power

wires to the amplifier. A fuse near the

amplifier is not necessary.

9) Connect the remote turn-on wire

to the amplifier.

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 (50A for a

single G1700) 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.

4 JL AUDIO G1700 JL AUDIO G1700 5

JL Audio G1700 Seite 3

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