Pyramid PB715X is a 4-channel amplifier designed for car audio systems, offering versatile connectivity and adjustable sound controls for a customized listening experience. With its ability to accept both speaker-level and line-level inputs, it seamlessly integrates with various head units. The variable high-pass and low-pass filters provide precise control over the frequency range sent to your speakers, allowing you to tailor the sound to your preference and optimize the performance of your audio system.
TECHNICAL
SUPPORT
HOTLINE
OUR
TECHNICAL
DEPARTMENT
WILL
GLADLY
ANSWER
ANY
QUESTIONS
YOU
MAY
HAVE
ABOUT
OUR
PRODUCTS.
THEY
CANNOT,
HOWEVER
TELL
VOU
THE
STATUS
OF
A
REPAIR,
OR
HANDLE
OTHER
CUSTOMER
SERVICE
SITUATIONS
IMPORTANT:
PACK
CAREFULLY
IN
ORIGINAL
CARTON
IF
POSSIBLE.
WE
ARE
NOT
RESPONSIBL.E
FOR
DAMAGE
INCURRED
IN
RETURNING
ITEMS
FOR
REPAIR
. A
LETTER
STATING
YOUR
EXACT
STREET
ADORES,
DAYTIME
PHONE
NUMBER
,
AND
THE
PROBLEM
YOU
ARE
EXPERIENCING
SHOUL.D
BE
INCLUDED.
YOU
MUST
ALSO
ENCLOSE
A
COPY
OF
THE
ORIGINAL
RECEIPT
A
SPROOF
OF
DATE
OF
PURCHASE
PYRAMID
CAR
AUDIO
SERVICE
CENTER
1600
63RD
STREET
BROOKLYN
,
NY
11204
1-800-934-2277
MONDAY
THROUGH
THURSDAY.
gAM
TO
SPM
FRIDAY
gAM
TO
2PM
EASTERN.
WWW
.P
YRAM
IDC
ARA
UDIO.COM
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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
perfect
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
heat.
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.
II
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
accident.
*
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.
WARNING!
Continuous
exposure
to
sound
pressure
levels
over
lOOdB
may
cause
permanent
hearing
loss.
High
power
auto
sound
system
may
produce
sound
pressure
levels
well
over
l30dB,
use
common
sense
and
practice
safe
sound
please!
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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
at
least 10mm'.
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
than
50mm.
Without one,
an
accidental short circuit
could
pose
a fire
hazard
and
damage
your
amplifier. Connect
the
fuse
holder
to
battery, however,
do
not
install
fuse
at
this
time.
* Connect
the
GROUND
Power
terminal direclly
to
the
battery
(-)
position terminal
or
the
car chassis.
Ensure
that all paint or other insulation
is
remove
from
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
amplifier
REM
control jack. If a
radio
doesn't
have
a
remote
turn
on
feature,
you
can
connect
the
REM
pole
to
external
switch
for positive +12V ON/OFF.
*
To
help
minimize interference, it
is
best
to
run
the
power
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.
I
2
CHANNEL
AMPLIFIER
-
FEATURES
PB715XJPB915XJPB2415X
HIGH
IN
I
ccepts
speaker
level
inputs
from
radios
that
do
not
line
level
(RCA)
outputsl
LINE
OUTPUT
BASS
EQ
High
Pall
Allows
you
to
connect
additional
amplifier
Allows
you
to
select
the
bass
boost
6dB/t2dB
variable
High
Pass
Filter
from
120Hz
to
3KHz
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Adjusts
the
line
level
Variable
Low
Pass
Filter
input
from
min
to
max
from
50Hz
to
250Hz
LOW
IN
CROSSOVER
SWITCH
Accepts
line
level
(RCA)inputs
from
O.
1
to
1
volts
Routes
output
of
the
low
poss(LP).
or
the
output
of
tho
high
pass
(HP)
filter.
or
FULL
to
the
internal
power
amplifier
FUSE
Protects
both
this
amplifier
and
the
automobile
electrical
system
from
short
circuit
conditions
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up
when
the
amplifier
is
energized
indicating
the
unit
is
on
PROTECT
LED
Lights
indicating
the
amplifier
has
gone
into
a
protection
mode
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4
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INPUT
CONNECTIONS
*
This
amplifier
has
RCA
connections for
low
level inputs.
Low
level signal
is
carried
through
RCA
cables. it
is
preferred
to
use
low
level inputs
to
the
amplifier if
the
head
unit
is
equipped
with
the
low
level outputs.
SPEAKER
OUTPUT
CONNECTIONS
You
do
not
need
to
make
any
adjustment for
the
input connection of amplifier
before
you
connect
the
speaker output.
* Connect right
and
left speaker wire
to
corresponding speaker output terminals of
the
amplifier.
*
Be
sure
to
have
the
positive
wire
from
the
speaker
to
the
positive speaker terminal
of
the
amplifier
and
the
negative wire
from
the
speaker
must
connect
with
the
speaker
terminal of
the
amplifier.
Reversing
any
of these connections will result
in
the
speaker
cones
moving
out
of
phase
which
causes
bass
cancellation.
LEVEL
CONTROLS
Turn
the
VOLUME
control
on
the
amplifier
to
Min
initially.
Once
the
initial
power
sequence
has
been
performed, set
the
CD/RADIO
volume
control
to
roughly
80%
of full. Insert a
CD
or
tune
to
a
radio
station
and
slowly
turn
up
the
amplifier
VOLUME
control until
you
hear
some
distortion,
and
then
back
it off
for
clean
sound.
Low
Pili
4
CHANNEL
AMPLIFIER
-
FEATURES
PB615X/PB1615X
LINE
INPUT
variable
Low
Pass
Filter
from
Accepls
line
level
(RCA)
inputs
from
0.2
to
5.0
Volts
50Hz
to
250Hz
LINE
OUTPUT
Allows
you
to
connect
additional
amplifier
High
Pall
INPUT
LEVEL
variable
High
Pass
Filter
from
~djUsts
line
level
(RCA)
Inputs
from
0.2
to
5.0
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120Hz
to
3KHz
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you
to
select
the
Bass
Boost
6dB/12dB
POWER
ON
LED
CROSSOVER
SWITCH
Lights
up
when
the
amplifier
is
energized
Routes
output
of
the
low
pass
(LP)
•
or
the
indicating
the
unit
is
on
output
of
the
high
pass
(HP)
filter,
or
FULL
PROTECT
LED
to
the
internal
power
amplifier
Lights
indicating
the
amplifier
has
gone
into
a
protection
mode
FUSE
Protects
both
this
amplifier
and
the
automobile
electrical
system
from
short
circuit
conditions
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POWER
SUPPLY
TERMINALS
I
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SPEAKER
OUTPUT
TERMINALS
I
2
CHANNEL
AMPLIFIER
-
APPLICATIONS
INPUT
CONNECTIONS
* This amplifier
has
RCA
connections for
low
level
inputs.
Low
level signal
is
carried
through
RCA
cables. it
is
preferred
to
use
low
level
inputs
to
the
amplifier if
the
head
unit
is
equipped
with
the
low
level outputs.
* This amplifier
has
high
input connection.
High
level
input
is
used
from
radios that
do
not
have
line-level outputs.
*
Be
sure not to use both low and high level inputs simultaneously!
SPEAKER
OUTPUT
CONNECTIONS
You
do
not
need
to
make
any
adjustment for
the
input connection of amplifier before
you
connect
the
speaker output.
* Connect right
and
left speaker
wire
to
corresponding speaker output terminals of
the
amplifier.
*
Be
sure
to
have
the
positive wire
from
the
speaker
to
the
positive speaker terminal
of
the
amplifier
and
the
negative
wire
from
the
speaker
must
connect
with
the
speaker
terminal of
the
amplifier. Reversing
any
of
these
connections will result
in
the
speaker
cones
moving
out of
phase
which
causes
bass
cancellation.
LEVEL
CONTROLS
Turn
the
VOLUME
control
on
the
amplifier
to
Min
initially.
Once
the
initial
power
sequence
has
been
performed, set
the
CD/RADIO
volume
control
to
roughly
80%
of full. Insert a
CD
or
tune
to
a
radio
station
and
slowly
turn
up
the
amplifier
VOLUME
control until
you
hear
some
distortion,
and
then
back
it off
for
clean
sound.
2
CHANNEL
AMPLIFIER
-
APPLICATIONS
PB715X/PB915X/PB2415X
o
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