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Congratulations
on
purchasing the High Speed Power Amplifier. The amplifier
has been designed using the latest electronic technology available, allowing
you to produce high quality stereo reproduction
in
mobile applications. This
system provides you with low harmonic distortion, a huge considerable amount
of reserve voltage and high temperature stability.
Just
enjoy
the
perfe
ct sound
this
amplifier
takes
to you!
INSTALLATION
*
Since
the
amplifier
is
sensitive
to
electrical
and
motor
noise
and
interference
from
the
amplifier
may
affect
your
radio
reception,
try
to
mount
it
at
least 3
feet
away
from
the
receiver.
Good
locations include
under a seat, in
the
trunk
or
hatch
area.
*
Please
remember
this
is a high
power
unit
which
generates
high
electrical
energy
and
heal. Therefore
be
sure
to
install
the
unit
in a place
with
sufficient airflow, a
minimum
of
dust
and
no
moisture.
Allow
enough
space
around
the
cooling
fins
to
permit
reasonable
airflow
and
cooling. It
is
important
to
ensure
that
the
cooling
fins
of
the
heat
sink
are
not
against a
panel
or a surface
preventing air circulation.
*
Never
mount
the
amplifier
in
a location
that
is
subject
to
direct sunlight
or
exposed
to
moisture.
Be
sure
to
mount
the
amplifier
to a strong
, solid
surface
which
will
not
give
way
under
the
stress of a
sudden
stop
or
acc
ident.
*
When
mounting
the
amplifier
on a side
wall, try
to
position
it
so that
the
slots
in
the
cooling
fins
are
vertical. Amplifier
should
not
be
mounted
on
the
bottom
of a rear
deck
with
the
fins
facing
down
because
the
heat will radiate
back
up
into
the
amplifier.
Leave
yourself
enough
room
on
either
side
of
the
amplifier
to
make
all
the
wire
connections
and
adjust
the
controls. If
you
have
a subwoofer
box
in
your
vehicle,
you
can
mount
the
amplifier
on
the
outside
of
the
box.
Caution :
If
you
are
mounting
the
amplifier
to
the
vehicle's floor, check beneath
the
car
to
be
sure your screws won't puncture a brake
or
gas
line.
WAR
NING
!
Continuous
expos
ure
to
sound
pressu
re l
evels
over
lOOdB
may
cause
permanent heari
ng
loss.
High power autosound
system
may
produce sound
pressure leve
ls
well
over
130dB, use
common
sense
and
practice
safe
sou
nd
please!
2
19
POWER
CONNECTION
@
~,
.
,,,
;:;;;;;;;J
I'
"d
IMPORTANT ! Before making
any
connections, disconnect
the
car' s battery until
the installation
is
completed
to
avoid possible damage to
the
electrical system
*
The + 12V
DC
power
cable
should
be
heavy
gauge
stranded
copper
cable
with
heavy insulation, since
it
draws power directly
from
the positive battery terminal.
Select the cable gauge al least
10mm
2
•
And
the ground cable gauge should
be
the
same
as
the +12V
DC.
* Connect the +
12V
Power terminal to
the
battery (+) position terminal.
An in- line
fuse must
be
installed
in
the +
12V
power cable near the battery less t
han
50mm
.
Without
one,
an
accidental short circuit could
pose
a fire hazard
and
damage your
amplifier.
Co
nnect the fuse holder to battery, however,
do
not install fuse at this time.
* Connect the
GROUN
D Power terminal direclly to the battery (- ) position terminal
or
the car chassis. Ensure that all paint or other insulation
is
remove fr
om
around
the
hole area,
and
using self tapping screw, securely affix
the
bare wire ends to
the
vehicle chassis.
Use
as
short
as
possible.
*
Many
radio' s
and
other music sources
have
an output terminal for connection of
the remote
turn
on
of the power amplifier.
CONNECT
the
output terminal
to
the
am
plifier REM control jack. If a radio doesn' t
have
a remote turn
on
feature,
you
can con
nect
the REM pole to external switch for positive +
12V ON/ OFF.
*
To
help minimize interference , it
is
best
to
run
the
Dower
cables along the opposite
side
from
the
audio cables.
Caution :
The
power cables must
be
connected tightly. A loose connection
may
cause malfunctions or interference noise or distortion.
MONO
CHANNEL
AMPLIFIER -APPLICATIONS
PLA3100D/PLA4600D
MASTER
SLAVE
MASTER
SLAVE
I
NTERCONNECTI
ON EXAMPLE 1 Subwoofar with a Oua
l-Voicecoil
Subwoot..
Vol""
Coil 2
l_IOhm
---
........
VI!
__
....
--.
--
.
I
NTERCONNECTION EXAMPLE 2 Subwooler
with a
Sin
gle
l-Voicecoil
Subwoot..
l _
IOhm
S
..
_.2
1_'Ohm
18
3
MONO
CHANNEL
AMPLIFIER -APPLICATIONS
PLA3100DfPLA4600D
INTERCONNECTION
EXAMPLE
1 Subwoo
fer
with a Single-Voic
eco
il
MASTER/SLAVE
link
like described
on
p~g
e
17
.
MASTER
@
SLAVE
Subwoofer
2·8
ohm
2
CHANNEL
AMPLIFIER -FEATURES
PLA2378
from
Min
to
FUSE
Pass
Filter
from
40Hz
to
300Hz
; I
Pass
Filter
from
40Hz
10
300H
z
low
pass (lPF
),
or
the output of
'-,;:;; (HP;'
; filter ,
or
FULL
to
Ihe
internal
Protects both this amplifier
and
the
automobile
elecuical system f
rom
short circuil conditions
-
••
. ,.
......
.
..
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po",'".::"
,
I
~
OWfR
SUPPLY
TERMINALS I
I
SPEAKER
OUTPUT
TERMINALS
P
OWER
ON
LED
lights
up
when
the
amplifier
is
energized
indicating the
unit
is
on
PROTECT
LED
lights
indicating t
he
amplifier
has
gone
inlo a protection
mode
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