Owner's Manual
Table Of Contents
PRODUCT DESCRIPTION
The
JL
Audio M4300
is
a four-channel,
full-range audio amplifier utilizing patented
Absolute
Symmetry~
Class
AlB
technology
for all channels.
The
M4300
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 positive
and
negative power wire
(minimum
8 AWG) from 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 4 AWG
or
larger
power wire
and
a power
distribution
block
if
additional
amplifiers are being installed
with
the
M4300.
3)
Connect
power wire to
the
positive
battery
post. Fuse the wire
with
an
appropriate
fuse
block
(and
connectors)
within
18
inches
(45
em) 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
8 AWG).
5)
Run
signal cables
and
remote
turn-on
wire
from
the
source
unit
to
the
amplifier
mounting
location.
6)
Run
speaker wi re from
the
speaker system
to
the
amplifier
mounting
location.
7) Securely
mount
the
amplifier using
the
supplied screws.
4
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
power wire fuse (40A for a single
M4300)
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.
+12VDC Ground Remote
•••
,
o
..JL
AUDIO
M43CC