Jl-audio HD600/4 User Manual download pdf (Page 3)

4 | JL Audio - HD600/4 Owner’s Manual

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 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. 4 AWG is recommended

for wire runs greater than 72 inches (180

cm) in length. Use of 8 AWG power wire is

acceptable for shorter runs, such as from a

power distribution block to the amplifier or

from a trunk-mounted battery. Use a 2 AWG

or 1/0 AWG main power wire with a power

distribution block when additional amplifiers

are being installed with the HD600/4 and

powered from the same main power wire.

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 or interface

processor to the amplifier mounting location.

5) Run speaker wire from the speaker systems to

the amplifier mounting location.

6) Find a good, solid, bare metal grounding

point close to the amplifier and connect the

negative power wire to it using appropriate

hardware. Use minimum 8 AWG power wire,

no longer than 36 inches (90 cm) or 4 AWG

wire up to 60 inches (150 cm) long from the

amplifier to the ground connection point. In

some vehicles, it may be necessary to upgrade

the battery’s ground wire as well. (See page 7

for important notice).

7) Securely mount the amplifier using

appropriate hardware. (See page 8 for detailed

mounting instructions).

8) Connect the remote turn-on wire and the

positive and negative power wires to the

amplifier’s power connector plug. Then insert

the power connector plug into the amplifier’s

power connector receptacle, pushing firmly.

9) Connect the RCA input cables

to the amplifier.

10) Connect the speaker wires to the speaker

connector plugs and insert the plugs firmly

into the speaker connector receptacles.

11) Carefully review the amplifier’s control

settings to make sure that they are set

according to the needs of the system.

12) Install power wire fuse (50A for a

single HD600/4) and reconnect the negative

battery post terminal.

13) 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.

14) Make necessary adjustments to the input

sensitivity controls to obtain the right

overall output and the desired balance

in the system. See Appendix C (pages 18, 19)

for the recommended input sensitivity

setting method.

15) Enjoy the fruits of your labor with your

favorite music.

PRODUCT DESCRIPTION

The JL Audio HD600/4 is a very powerful

and compact four-channel, full-range amplifier

utilizing patented Single Cycle Control™

Class D technology for all channels. This

groundbreaking technology delivers reference-

grade sonic performance while requiring

far less current from the vehicle’s electrical

system than a conventional amplifier.

JL Audio’s exclusive R.I.P.S. power supply

design optimizes the output of each channel pair

for any impedance between 1.5 and 4 ohms per

channel (3-8 ohms bridged) allowing you to get

full use of the HD600/4’s performance capabilities

with a wide range of speaker systems.

The tightly regulated power supply design also

means that the HD600/4’s clean power output

capability remains stable over a wide range of

vehicle voltages, resulting in enhanced fidelity.

The HD600/4 flexible, studio-grade signal

processing allows it to be deployed in a wide

range of system applications:

1) As a four-channel (150W x 4) full-range

amplifier, delivering full-range signals to two

separate stereo speaker systems (front and rear,

for example).

2) As a powerful (150W x 4) four-channel satellite

amplifier in a bi-amplified system, delivering

high-passed signals to front and rear speaker

systems. Preamp outputs permit connection of a

separate amplifier to drive the subwoofer system.

3) As a 600W full-system amplifier in

bi-amplified mode with one channel pair

driving subwoofers in low-pass mode (150W

x 2 or 300W x 1) and the other channel pair

driving main speakers in high-pass mode

(150W x 2).

4) As a very powerful (300W x 2) full-range

amplifier, delivering full-range signals to a

stereo speaker system.

5) As a very powerful (300W x 2) two-channel

satellite amplifier in a bi-amplified system,

delivering high-passed signals to a stereo

speaker system. Preamp outputs permit

connection of a separate amplifier to drive the

subwoofer system.

6) As a powerful (300W x 2) two-channel

subwoofer amplifier in a bi-amplified system,

delivering low-passed signals to a dual

subwoofer system. Preamp outputs permit

connection of a separate amplifier to drive the

satellite speakers.

The HD600/4’s flexible input and crossover

sections permit operation with a wide variety of

source units and system configurations. It can be

operated with a single pair of stereo inputs or with

separate inputs for its front and rear channels.

The HD600/4’s preamp output can send pass-

through signals from the Front Inputs only or it

can sum all four input channels to feed a non-

fading signal to a separate subwoofer amplifier.

As we said, it’s very flexible.

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OWNER’S MANUAL 1
INSTALLATION NOTES: 12

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Jl-audio HD600/4 User Manual Page 3

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