If you are installing the e6450M 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
distribution block mounted as close to the
amplifiers as possible and should connect to the
e6450M with 4 AWG power wire.
Please note that 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.
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 vessels employ small (10 AWG - 6 AWG)
wire to connect the alternator's positive connection
to the battery.To prevent voltage drops, this wire
should be upgraded to 4 AWG when installing
amplifier systems with main fuse ratings above 60A.
It is common for the alternator to be grounded
through its chassis. If the alternator is not grounded
through its chassis and instead employs a small (10
AWG - 6 AWG) wire to connect to ground, this
wire should also be upgraded to 4 AWG when
installing amplifier systems with main fuse ratings
above 60A.
I M P O RTA N T
!
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
e6450M is being run from that power wire, we
recommend a 60A fuse be used. AGU (big glass
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 60A AGU fuse
or MaxiFuse™ type.
TURN-ON LEAD
The e6450M uses a conven12V remote
turn-on lead, typically controlled by the source unit's
remote turn-on output.The amplifier will turn on
when +12V is present at its
“Remote”
input and
turn off when +12V is switched off. If a source unit
does not have a dedicated remote turn-on output,
the amplifier’s turn-on lead can be connected to
+12V via a switch that derives power from an
ignition-switched circuit.
The e6450M's
“Remote”
turn-on connector is
designed to accept 18 AWG – 12 AWG wire.To
connect the remote turn-on wire to the amplifier,
first back out the set screw on the top of the
terminal block, using the supplied 2.5mm hex
wrench. Strip 1/2 inch (12mm) of 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 the terminal, tighten the set
screw firmly, taking care not to strip the head of the
screw and making sure that the wire is firmly
gripped by the set screw.
JL AUDIO
e6450M
5
PRODUCT DESCRIPTION
The JL Audio e6450M is a six-channel full-range
marine amplifier utilizing patented Absolute
Symmetry™ Class AB technology for all channels.
The e6450M can be operated with a wide
variety of source units and system configurations.
TYPICAL INSTALLATION SEQUENCE
The following represents the sequence for a
typical amplifier installation, using an aftermarket
source unit. 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 possitive and negative 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 vessel operation. Use 2
AWG or 1/0 AWG power wire if additional
amplifiers are being installed with the e6450M.
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 vessel. Do not install the
fuse until the power wire has been connected to
the amplifier.
4)
Connect negative power wire to the negative
battery post. Use the same size power wire as the
wire connected to the
“+12V”
connection
(minimum 4 AWG).
5)
Run signal cables and remote turn-on wire
from the source unit to the amplifier
mounting location.
6)
Run speaker wire from the speaker systems to
the amplifier mounting location.
7)
Securely mount the amplifier using the
supplied screws.
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 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 the power wire fuse (60A for a
single e6450M) 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.
POWER CONNECTIONS
Before installing the amplifier, disconnect the
negative (ground) wire from the vessel's battery.
This will prevent accidental damage to the system,
the vessel and your body during installation.
The e6450M's
“+12 VDC”
and
“Ground”
connections are designed to accept 4 AWG
power wire.
4 AWG is a minimum power
wire size for this amplifier.
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JL AUDIO
e6450M
