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has been designed using the latest electronic technology available, allowing
you to produce high quality stereo reproduction
system provides you with low harmonic distortion, a huge considerable amount
of reserve voltage and high temperature stability.
Just
enjoy
the
on
purchasing the High Speed Power Amplifier. The amplifier
in
mobile applications. This
perfe
ct sound
this
amplifier
takes
to you!
INSTALLATION
*
Since
the
the
amplifier
the
receiver.
*
Please
and
heal. Therefore
minimum
permit
reasonable
of
the
heat
*
Never
mount
to
moisture.
give
way
*
When
mounting
the
cooling
deck
with
amplifier.
wire
connections
you
can
mount
amplifier
may
Good
remember
of
dust
sink
Be
under
fins
the
fins
Leave
is
sensitive
affect
your
locations include
this
is a high
be
sure
and
no
moisture.
airflow
are
the
sure
the
the
are
yourself
and
the
and
not
against a
amplifier
to
mount
stress of a
amplifier
vertical. Amplifier
facing
down
enough
adjust
amplifier
to
radio
power
to
install
cooling. It
panel
in
a location
the
sudden
on a side
because
room
the
controls. If
on
the
electrical
reception,
under a seat, in
Allow
amplifier
should
on
outside
and
try
unit
which
the
unit
in a place
enough
is
important
or a surface
that
is
to a strong
stop
or
acc
wall, try
not
the
heat will radiate
either
you
of
the
motor
noise
and
to
mount
it
at
least 3
the
trunk
or
generates
space
to
preventing air circulation.
subject
ident.
to
position
be
mounted
side
of
have
a subwoofer
box.
high
with
around
ensure
to
direct sunlight
, solid
it
on
back
the
amplifier
sufficient airflow, a
the
that
surface
so that
the
interference
feet
hatch
area.
electrical
cooling
the
cooling
or
which
the
bottom
up
into
to
make
box
in
your
from
away
energy
fins
to
fins
exposed
will
slots
of a rear
the
all
vehicle,
from
not
in
the
·
• •
•
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1
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0
8
*
~
20
Caution :
the
car
If
to
Continuous
may
cause
system
130dB, use
you
are
mounting
be
sure your screws won't puncture a brake
expos
permanent heari
may
produce sound
common
ure
the
amplifier
WAR
to
sound
sense
to
the
NING
pressu
ng
loss.
pressure leve
and
practice
1
vehicle's floor, check beneath
or
gas
line.
!
re l
evels
over
lOOdB
High power autosound
ls
well
over
safe
sou
nd
please!
POWER
CONNECTION
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MONO
MASTER
SLAVE
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I
NTERCONNECTI
AMPLIFIER -APPLICATIONS
PLA3100D/PLA4600D
ON EXAMPLE 1 Subwoofar with a Oua
l-Voicecoil
IMPORTANT ! Before making
is
the installation
*
The + 12V
heavy insulation, since
Select the cable gauge al least
the
same
DC
as
the +12V
* Connect the +
be
fuse must
Without
amplifier.
installed
one,
Co
nnect the fuse holder to battery, however,
* Connect the
or
the car chassis. Ensure that all paint or other insulation
the
hole area,
vehicle chassis.
*
Many
radio' s
the remote
am
plifier REM control jack. If a radio doesn' t
you
can con
*
To
side
Caution :
cause malfunctions or interference noise or distortion.
turn
nect
help minimize interference, it
from
the
audio cables.
The
power cables must
completed
power
cable
it
DC.
12V
Power terminal to
in
an
accidental short circuit could
GROUN
and
D Power terminal direclly to the battery (- ) position terminal
using self tapping screw, securely affix
Use
as
and
other music sources
on
of the power amplifier.
the REM pole to external switch for positive +
any
connections, disconnect
to
avoid possible damage to
should
draws power directly
the +
short
be
heavy
2
10mm
12V
as
And
•
the
power cable near the battery less t
possible.
have
is
best
to
be
connected tightly. A loose connection
gauge
stranded
from
the positive battery terminal.
the ground cable gauge should
battery (+) position terminal.
pose
a fire hazard
do
an output terminal for connection of
CONNECT
have
run
the
a remote turn
the
Dower
the
car' s battery until
the
electrical system
copper
not install fuse at this time.
is
remove fr
the
bare wire ends to
output terminal
12V ON/ OFF.
cables along the opposite
cable
An in- line
han
and
damage your
om
on
feature,
with
be
50mm
around
to
the
.
the
may
MASTER
SLAVE
Subwoot..
l_IOhm
Vol""
........
VI!
__
---
....
--.
--
I
NTERCONNECTION EXAMPLE 2 Subwooler
Coil 2
.
with a
Sin
gle
l-Voicecoil
Subwoot..
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IOhm
S
..
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1_'Ohm
2
19
MONO
CHANNEL
AMPLIFIER -APPLICATIONS
2
CHANNEL
AMPLIFIER -FEATURES
MASTER
@
SLAVE
PLA3100DfPLA4600D
INTERCONNECTION
MASTER/SLAVE
EXAMPLE
link
1 Subwoo
like described
fer
with a Single-Voic
on
p~g
e
17
.
eco
PLA2378
il
and
; I
; filter ,
the
from
Min
to
'-,;:;; (HP;'
FUSE
Protects both this amplifier
elecuica l system f
rom
short circuil conditions
Pass
Pass
low
pass (lPF
or
automobile
Filter
Filter
FULL
),
to
from
from
or
Ihe
40Hz
to
300Hz
40Hz
10
300H
the output of
internal
z
18
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ohm
2·8
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OWER
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when
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LED
amplifier
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amplifier
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is
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=
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nputs
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PLA2678
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HlglI Pass
variable
lx
l
L-
I
variable
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to
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==
......
0 0
-,-
BASS
eQ
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the
to
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Bass
12dB
output
pass(HPF
and
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Il
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outes
h8
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amplifier
rom
short Circuit conditions
High
Low
Pas
s z
Low
= =
-
,M -
0 -
----
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from
SWITCH
of
Ihe
low
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automobile
Pass
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Pass
Filter
--
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I
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MONO
pass{L?F
or
FULL
from
40Hz
to
300Hz
from
40Hz
to
300Hz
~
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you
to
select lh
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or
),
to
STEREO
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the
internal
mode
output
l
of
power
PLA3100D/PLA4600D
MASTER/SLAVE
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on
00
page 17.
@
SLAVE
MASTER
tf/
@ (
~
~
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I
pOWER
SUPPLY
POWER
Lights
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Lights indicating
..
-
..,....
0_
TERMINALS I
ON
lEO
up
when
the
LEO
the
. ,"
00
I I
amplifi
er
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4
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ISPEAKER
ind
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on
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~
unit is
mode
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TERM
on
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@
SLAVE
INALS I
@
17
MONO
CHANNEL
AMPLIFIER -APPLICATIONS
2
CHANNEL
AMPLIFIER -FEATURES
PLA3100D/PLA4600D
Car
ster.e
system
I
A~,;p"ljne
2
to
OUTPU
level (
5 Voll
T
to
RCA
)
inputs
s
connect additional
PLA2978
...
,,"
pass(HPF) filter,
Low Pass
variable
low
o 0 -
--
low
Pass
Filter
Pass
Filter
pass (LPF
or
FULL
) ,
to
from
from
or
the
40Hz
40Hz
the
output
internal
to
to
300Hz
300Hz
of
power
@
16
1- '
2- '
O~ml
Speak
Ohm. Spllk.r
both this amplifier
ED
L
iii
the
the
from
amplifier
ampli
..
';'
Roi"c,'",i
I
~
LED
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and the
short circuit conditions
is
fier
has
automobile
T
ERMINA
energized
ind
gone into a prot
icating
LS
the
ection
unit
mode
is
on
5
4
CHANNEL
AMPLIFIER -FEATURES
MONO
CHANNEL
AMPLIFIER -APPLICATIONS
PLA42781PLA4478
~~
NE
l~i
9h
variable
15Hz
I:LOW
variable
60Hz
Pass
to
Pa
ss
10
High
250Hz
Low
200Hz
Pass
Pass
Filter
Filler
from
from
INPUT
ccepls
line
level (
INPUT
I
lEVEL
~djusts
line
r-
,=.
~
--
--
-
~(@(~
~t
SSEQ
djus!
the
Bass
Boost
[
INPUT
MODE
Allow
~ou
to
select
the
FUSE
Protects both this amplifier
system
000
--
----.
from
DdB
to
2CH
or
4CH
from
short cireui! conditions
"®~-
!@i@ ...
-I~
L
sl
18dS
I
mode
and
c
-
0
000
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CROSSOVER
Routes
output of
to
the intern
the
automobile electrical
RCA
) inputs
levelCRCA) Inputs
=
~
--
--
~
------
output
the
py~
I'D"'
SWITCH
of
the
high
pass(HIGH) filter.
al
power
from
0.2
from
.,
low
pass(LOW
amplifier
to
6.0
0.2
to
6. 0 Volts
0
@
~
v'
) .
or
or
Volts
I
the
FULL
PLA1800
Ri
Car
stereo
system
ls
i
hI
Lett
@
_
...
,_
..
-..
....
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......
_
_
I
POWER
SUPPLY
TERMINALS
POWER
lights
PROTECTION
Lights indicating t
up
ON
when
LED
LED
I I
the
he
SPEAKER
amplifier
amplifier
6
OUTPUT
is
energized indicating t
has
gone into a protect
TERMINALS
he
ion
I
unit
mode
I- a Ohm, Spu k. ,
==
....
""'"0Ul0'\IT
I~ I~I~
• 0
is
on
2- ' Ohm. Sp
I~
..
klf
15
MONO
AMPLIFIER -APPLICATIONS
MONO
CHANNEL
AMPLIFIER -FEATURES
PLA1800
INPUT
*
through
unit
SPEAKER
You
you
CONNECTIONS
This
amplifier
RCA
cables. it
is
equipped with
OUTPUT
do
not
need
connect
the
has
RCA
the
to
make
speaker output.
* Connect subwoofer wire
*
Be
sure
to
have
the
positive
of
the
amplifier
terminal of
cones
moving
LEVEL
Turn
the
Once
the
control
up
for
to
the
amplifier
clean sound.
CONTROLS
and
the
the
amplifier. Reversing
out of
phase
VOLUM
E control
initi
al
power sequence
roughly 80% of full. Insert a
VOLUME
connections
is
preferred
low
level outputs.
to
for
use
low
level inputs.
low
level inputs
CONNECTIONS
any
adjustment
to
corresponding speaker output terminals of
wire
negative
on
control until
which
the
wire
causes
amplifier
has
from
from
any
been
you
for
the
the
of
these
bass
to
performed,
CD
or tune
hear
the
input connection of amplifier
speaker
cancellation.
Min
to
the
speaker
some dis
must
connections will result
initially.
set
the CD/
to
a radio station
tortion,
Low
level
signal
is
carried
to
the
amplifier if
positive speaker terminal
connect with
RADIO
and
and
then
the
amplifier.
the
in
the
volum
slowly turn
back
the
before
speaker
speaker
e
it off
head
SUBSONIC
Sets t
is
REMOTE
djusl the l
enclosed
Ir
OWER
lights
r;"uo,
PROTECT
~jghts
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to a protection mode
FILTER
he
lower cutoff frequency.
avriable
from
CONTROL
ow
pass signal
remote
ff/
( @
ON
up
when
I
indicati.ng
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,,;1
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the
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40Hz
control
via
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frequency
the
jM
t
I
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I~~
the
amplifier
;,
the
FU
Protects both this amplifier
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is
energized
'"
amplifier has gone
SE
LINE INPUT
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LINE
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and
~~W
PASS
ariable
Low
Pass
Filter
from
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PUT
LEVEL
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line
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you
to
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Ihe automobile electrical
40Hz
to
RCA
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~
~~
@
to
I2dB
from 0.4
300Hz
l
to 4 volts
14
I
POWER
SUPPLY
I
TER
MINALS
I
7
(
SPEAKER OUTPUT
I
TERMINALS
I
MONO
CHANNEL
AMPLIFIER -FEATURES
4
CHANNEL
AMPLIFIER -APPLICATIONS
REMO
TE
Adjust
enclosed remote control
Allowed
OUTPUT
CONTRO
the low
you
mode
MAST
Allows
POWER
lights
up
indicating
PROT
ECT LED
ii
L
pass
select
MASTER
or
SLAVE
ER OUTP
10
ON LED ,-,' _ ,
when
the
the unit
i
the
signal
INPUT
UT
connect
Ii
amplifier
is
on
amplifier
PLA3100D/PLA4600D
via
Ihe
-
level (RCA
is
energized
has
gone
) i
into
Sets
the
frequency
lower
is
cutoff
avriable
frequency,
from
15Hz
PLA4278/PLA4478
3-
CHANNEL
2-
CHANNEL
MODE
MODE
FUS
E
Protec
system
ts
both
from
this
short
amplifier
circuit
and
the
conditions
8
automobile
SPEAK
ER OUTP
electrical
UT TERMINALS
~
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_ 0 _
.
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-
Ii'fil
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13
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.,,-.
- -
,-
,,-
4
CHANNEL
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PLA4278/PLA4478
4-
CHANNEL
MODE
APPLICATIONS
INPUT
2
CHANNEL
CONNECTIONS
AMPLIFIER -APPLICATIONS
-
~
* This
through
unit
am
plifier
RCA
cab
is
equipped with
has
les.
RCA
connections for low level inputs.
it
is preferred
the
low level outputs.
to
use l
ow
level inputs
Low
level signal is carried
to
the
* This amplifier has high input connection. High level input is used
do
nol
have
line-level
* Be
sure
not
to u
SPEAKER
You
do
you
connect
OUTPUT
nol need
the
* Connect right
amplifier.
*
Be
sure
to
have
of
the
amplifier
terminal of the
cones moving out of phase which causes bass cancellation.
LEVEL
T
urn
the VOLUME control
Once
the
control to roughly
up
the
amplifier V
ean
for cl
and
amp
CONTROLS
initial
pow
sound.
outputs.
se both low and hi
gh lev
el inpu
ts simultaneously
CONNECTIONS
to
make
any adjustment for the input connection of amplifier before
speaker output.
and
left speaker wire
the
positive wi
the negative wire
lifier. Reversing a
on
the
er sequence has been performed, set the CD/ RAD
80
% of full. Insert a
OLUME
control until
to
corresponding speaker output terminals of
re
from
the
speaker
from
the
ny
of these connections will result
amplifier to
you
CD
Min
or tune
hear
to
speaker must connect with
initially.
to
a radio station
some
distortion,
the
positive speaker terminal
and
amplifier if
from
radios that
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the
in
the
IO
volume
and slow
then back it off
the
head
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speaker
ly turn
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PLA2378/PLA2678/PLA2978
STEREO MOOE
4
CHANNEL
AMPLIFIER -APPLICATIONS
MONO
o·
MODE
INPUT
*
through
unit
SPEAKER
You
you
* Connect right
amplifier.
*
of
terminal of
cones
LEVEL
Turn
Once
control
up
for clean sound.
CONNECTIONS
This
amplifier
RCA
is
equipped
has
cables.
with
RCA
OUTPUT
do
not
need
to
make
connect the speaker output.
and
left speaker wire
Be
sure
to
have
the
the
amplifier
moving
and
the
the
amplifier. Reversing any of these connections will result
out
of
phase
CONTROLS
the
VOLUME
the
initial
to
roughly 80% of full. Insert a
the amplifier
control
power
VOLUME
connections for
it
is
preferred
the
low level outputs.
to
CONNECTIONS
any
adjustment for
positive wire
negative wire
which
on
sequence
control until
the
from
causes
amplifier
has
low
level inputs.
use
low
level inputs
the
input connection of amplifier before
to
corresponding speaker output terminals of
the
speaker
from
the speaker
bass
cancellation.
to
Min
initially.
been
performed,
CD
you
or tune
hear
to a radio
some
Low
level signal
to
the
amplifier if the
to
the
positive speaker terminal
must
connect with
set
the CD/
distortion,
RADIO
station
and
and
then
in
is
carried
head
the
speaker
the
speaker
volume
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