Owner’s
Manual
PB444X
PB446X
PB448X
PB449X
Super
Blue
introduction
2 ch
s
Congratulations on your purchase of a new Pyramid Super Blue
amplifier. Super Blue amps are some of the most advanced car
amplification products available. These quality audio products
are designed and engineered to afford you years of uncompromised
musical service. Pyramid has utilized the latest electronic
technologies in order to deliver a superb listening experience.
The Super Blue line has been designed to ensure adequate
RM
headroom for even the most demanding peaks and dynamic
ranges found on today’s CD’s and recordings. Used properly,
these amplifiers will provide you with years of listening
pleasure.
table of contents
Introduction i
Table of Contents i
Specifications 1
Features and Controls, 2 ch amp PB444X 2
Features and Controls, 2 ch amp PB446X, PB449X 4
Features and Controls, 4 ch amp PB448X 6
Mounting and Installation 8
Electrical Connections 9
Stereo & Mono Input Connections, 2 ch amp PB444X 11
Stereo Input Connections, 2 ch amp PB446X, PB449X 12
Mono Input Connections, 2 ch amp PB446X, PB449X 13
4CH/Stereo Input Connections, 4 ch amp PB448X 14
4CH Hi-Level Input Connections, 4 ch amp PB448X 15
Mono Input Connections, 4 ch amp PB448X 16
Hi-Level Mono Input Connections, 4 ch amp PB448X 17
Speaker Connections, 2CH & Bridged mode, PB444X 18
Speaker Connections, 2CH & Bridged mode, PB446X, PB449X 19
Speaker Connections, 4CH & Bridged mode, PB448X 20
Troubleshooting 21
i
owner’s manual
ma
2 ch amp PB444X • PB446X• PB449X • 4 ch amp PB448X
specifications
PB444X PB446X PB448X PB449X
2 ch amplifier
2 ch amplifier
4 ch amplifier
2 ch amplifier
200W x 2
300W x 2
250W x 4
500W x 2
60W x 2
70W x 2
65W x 4
125W x 2
yes
yes
no
yes
no
no
yes
no
400W x 1
600W x 1
500W x 2
1000W x 1
frequency response
15-30 Khz
(+
_3dB)
10-30 Khz
(+
_3dB)
10-30 Khz
(+
_3dB)
10-30 Khz
(+
_3dB)
input impedance
10 K-Ohms
10 K-Ohms (low) 20 K-Ohms (low) 20 K-Ohms (low)
100 Ohms (high) 100 Ohms (high) 100 Ohms (high)
input sensitivity
150 mV
250 mV (low)
2.5 V (high)
250 mV (low)
2.5 V (high)
250 mV (low)
2.5 V (high)
DC 14.4V
negative ground
(10.5-16V)
DC 14.4V
negative ground
(10.5-16V)
DC 14.4V
negative ground
(10.5-16V)
DC 14.4V
negative ground
(10.5-16V)
4-8 Ohms
2-8 Ohms
2-8 Ohms
2-8 Ohms
15 A
20 A
30 A
30 A
230 x 59 x 270
307 x 59 x 270
389 x 59 x 270
389 x 59 x 270
9.05x2.32x10.63
12.09x2.32x10.63
15.31x2.32x10.63
15.31x2.32x10.63
kg
2.25
2.95
3.85
3.85
lbs
4.95
6.49
8.47
8.47
output power
@14.4 V.D.C 1 Khz
Maximum Power Output
RMS Power Output @ 4 ohms
bass/treble control
subwoofer crossover
i
bridged mode
power supply voltage
matching speaker impedance
maximum current draw
dimensions (W x H x D)
mm
inches
net weight
1
2 ch amp PB444X
features and controls
low level inputs
speaker connections
bass control
power fuse
treble control
protection indicator
input gain control
power terminals
s
power LED
2
owner’s manual
low level inputs this amp features gold-plated RCA input
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
bass control use this control to adjust the bass output level
to suit your taste or audio program material.
tions
ator
s
treble control use this control to adjust the treble output level
to suit your taste or audio program material.
input gain control use this control to match the outputs of
your head unit to the amplifier. Starting
with your head unit volume control set at
about the 2 o’clock position, increase the
amp gain control until distortion begins to
occur, and reduce slightly from this point.
power LED this indicator is illuminated when power
is applied.
speaker connections these terminals are 14K gold plated to
guarantee high conductivity and minimum
signal loss.
power fuse the fuse protects the amplifier and your car’s
electrical system from short circuit conditions.
protection indicator if the amplifier is incorrectly wired or not
matched to the speaker system, the protection
indicator will come on and the amplifier will
turn off. Disconnect the power wire to reset the
amplifier.
power terminals use these connectors to deliver power, ground,
and remote turn-on control to the amplifier.
3
2 ch amp PB446X • PB449X
features and controls
high level inputs
power LED
low level inputs
input gain control
treble control
bass control
bridged mode switch
b
speaker connections
power terminals
protection indicator
power fuse
4
owner’s manual
s
high level inputs if your car stereo does not have RCA output
jacks, you can connect the speaker output
from the stereo system to the amplifier.
power LED this indicator is illuminated when power
is applied.
low level inputs this amp features gold-plated RCA input
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
input gain control use this control to match the outputs of
your head unit to the amplifier. Starting
with your head unit volume control set at
about the 2 o’clock position, increase the
amp gain control until distortion begins to
occur, and reduce slightly from this point.
treble control use the control to adjust the treble output level
to suit your taste or audio program material.
bass control use the control to adjust the bass output level
to suit your taste or audio program material.
bridged mode switch the amplifier can be bridged to form a
high-power one channel unit. Make sure
that the speaker system on the bridged
channel is capable of handling the rated
power and is of the proper impedance.
speaker connections these terminals are 14K gold plated to
guarantee high conductivity and minimum
signal loss.
power terminals use these connectors to deliver power, ground,
and remote turn-on control to the amplifier.
protection indicator if the amplifier is incorrectly wired or not
matched to the speaker system, the protection
indicator will come on and the amplifier will
turn off. Disconnect the power wire to reset the
amplifier.
power fuse the fuse protects the amplifier and your car’s
electrical system from short circuit conditions.
5
4 ch amp PB448X
features and controls
power LED
high level inputs
low level inputs
front input gain control
front bridged mode switch
rear input gain control
rear bridged mode switch
subwoofer crossover on/off switch
subwoofer crossover frequency control
b
speaker connections
s
power terminals
power fuse
s
protection indicator
s
6
owner’s manual
ntrol
power LED this indicator is illuminated when power
is applied.
high level inputs if your car stereo does not have RCA output
jacks, you can connect the speaker output
from the stereo system to the amplifier.
low level inputs this amp features gold-plated RCA input
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
input gain controls use these controls to match the outputs of
your head unit to each pair of amplifier
inputs. Starting with your head unit volume
control set at about the 2 o’clock position,
increase the amp gain controls until
distortion begins to occur, and reduce slightly
from this point.
bridged mode switch the amplifier can be bridged to form a
high-power two channels unit. Make sure
that the speaker system on the bridged
channel is capable of handling the rated
power and is of the proper impedance.
subwoofer crossover this flexible amplifier can be set up with
on/off switch left/right (or bridged) rear subwoofer
system(s). This switch activate the rear
subwoofer crossover.
subwoofer crossover when activated, this control sets the upper
frequency control frequency limit for signals sent to the rear
channel(s).
speaker connections these terminals are 14K gold plated to
guarantee high conductivity and minimum
signal loss.
power terminals use these connectors to deliver power, ground,
and remote turn-on control to the amplifier.
power fuse the fuse protects the amplifier and your car’s
electrical system from short circuit conditions.
protection indicator if the amplifier is incorrectly wired or not
matched to the speaker system, the protection
indicator will come on and the amplifier will
turn off. Disconnect the power wire to reset the
amplifier.
7
2 ch amp PB444X • PB446X • PB449X • 4 ch amp PB448X
mounting and installation
Please read the Installation Precautions section below before installing
your Pyramid Super Blue amplifier, and then refer to the diagrams
provided to connect power, audio input and speaker connections
according to your own system configuration requirements.
el
P
Installation Precautions
• Before you drill or cut any holes, investigate your car’s layout
very carefully. Take care when you work near the gas tank,
fuel lines, hydraulic line and electrical wiring.
• Do not operate the amplifier when it is unmounted. Attach
all audio system components securely within the automobile
to prevent damage, especially in an accident.
• Do not mount this amplifier so that the wire connections are
unprotected or in a pinched condition, or likely to be damaged
by nearby objects. Be sure to select a location inside your
vehicle which has adequate ventilation.
• Before making or breaking power connections in your system,
disconnect the vehicle battery. Confirm that your head unit or
other equipment is turned off while connecting the input jacks
and speaker terminals.
• If you need to replace the power fuse, only replace it with
a fuse identical to that supplied with the system. Using a fuse
of a different type or rating may result in damage to your
system which isn’t covered by the manufacturer’s warranty.
screw
spring washer
flat washer
solid mounting
surface
8
owner’s manual
P
2 ch amp PB444X• PB446X• PB449X
electrical connections
PB444X
t
e
d
12V battery
to remote
turn-on
+12V
head unit
,
r
s
PB446X • PB449X
e
12V battery
to remote
turn-on
+12V
head unit
9
4 ch amp PB448X
electrical connections
st
PB448X
12V battery
to remote
turn-on
+12V
head unit
10
owner’s manual
m
2 ch amp PB444X
stereo input connections
head unit
L/R audio outputs
2 ch amp PB444X
mono input connections
To a second
amplifier
head unit
Y adaptors
11
2 ch amp PB446X • PB449X
stereo input connections
m
using low level inputs
us
t
head unit
L/R audio outputs
using high level inputs
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
wiring harness
head unit
R
R
L
L
from speaker terminals
12
owner’s manual
us
2 ch amp PB446X •PB449X
mono input connections
using low level inputs
to a second
amplifier
head unit
Y adaptors
using high level inputs
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
wiring harness
to a second
amplifier
head unit
L
L
R
wiring
harness
R
from speaker terminals
13
4 ch amp PB448X
2/4 channel input connections
hi
4 CH input connections
using low level inputs
4
L/R front
audio outputs
L/R rear
audio outputs
head unit
2 CH input connections
using low level inputs
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
4
for
left output
right output
14
head unit
Y adaptors
owner’s manual
X
s
4 ch amp PB448X
hi level input connections
4 CH floating ground connection
wiring harness
head unit
orange
black
black
orange
R
L
REAR
R
orange
black
black
orange
L
FRONT
4 CH harness wiring
for common ground connection
head unit
R
L R
L
orange
black
black
orange
orange
black
black
orange
REAR
FRONT
15
4 ch amp PB448X
mono input connections
hi
4 CH mono input connections
using low level inputs
4
R
L
rear outputs
L
R
head unit
front outputs
2 CH mono input connections
using low level inputs
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
4
for
right audio
outputs
head unit
left audio
outputs
16
owner’s manual
4 ch amp PB448X
hi level mono input connections
4 CH floating ground connection
wiring harness
head unit
orange
black
black
orange
from
speaker
terminals
L
R
orange
black
black
orange
4 CH harness wiring
for common ground connection
head unit
from
speaker terminals
orange
black
black
orange
L
R
orange
black
black
orange
17
2 ch amp PB444X
speaker connections
sp
stereo output mode
st
LEFT speaker
RIGHT speaker
bridged mono output mode
speaker
18
owner’s manual
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS!
br
2 ch amp PB446X • PB449X
speaker connections
stereo output mode
mode switch in
STEREO position
LEFT speaker
RIGHT speaker
bridged mono output mode
mode switch in
BRIDGED position
speaker
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS!
19
4 ch amp PB448X
2 ch
speaker connections
tr
4 channel (stereo) output mode
mode switch in
STEREO position
L
REAR
speakers
A
R
R
L
FRONT
speakers
bridged mono output mode
mode switch in
BRIDGED position
A
L
speakers
R
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS!
20
owner’s manual
2 ch amp PB444X • PB446X • PB449X • 4 ch amp PB442X• PB448X
troubleshooting
Before removing your amplifier, refer to the list below and follow the
suggested procedures. Always test the speakers and their wires first.
Amplifier will not power up.
• Check for good ground connection.
• Check that remote DC terminal has at least +12v DC.
• Check that there is battery power on the + terminal.
• Check all fuses.
• Check that Protection LED is not lit. If it is lit, shut off
amplifier briefly and then repower it.
High hiss or engine noise (alternator whine) in speakers.
• Disconnect all RCA inputs to the amplifier(s) – if hiss/noise
disappears, then plug in the component driving the amplifier
and unplug its inputs. If hiss/noise disappears, go on until
the faulty/noisy component is found.
• It is best to set the amplifier's input level as insensitive
as possible. The best subjective S/N ratio is obtainable
this way. Try to drive as high a signal level from the head
unit as possible.
Protection LED comes on when the amplifier is powered up.
• Check for shorts on speaker leads.
• Check that the volume control on the head unit is turned
down low.
• Remove speaker leads, and reset the amplifier. If the
Protection LED still comes on, then the amplifier is faulty.
Amplifier(s) gets very hot.
• Check that the minimum speaker impedance for that model
is correct.
• Check for speaker shorts.
• Check that there is good airflow around the amplifier. In
some applications, an external cooling fan may be required.
Distorted sound
• Check that the Level control(s) is set to match the signal
level of the head unit.
• Check that all crossover frequencies have been properly set.
• Check for shorts on the speaker leads.
High squeal noise from speakers.
• This is almost always caused by a poorly-grounded RCA
patch cord.
21
MANUFACTURER’S LIMITED TWO YEAR WARRANTY
PYRAMID SOUND CORP. warrants this unit to be free from
defective material or workmanship and will repair or replace this
unit or any part thereof if it proves defective in normal use or
service within two (2) years from the date of original purchase.
Our obligation under this warranty is limited to repairing or
replacing, at our discretion, the defective instrument or any part
thereof when it is returned, transportation prepaid to the Pyramid
Service Center at the address below. This warranty will be considered void if the unit has been tampered with, improperly serviced,
subjected to abuse or misuse or if installed in a commercial vehicle.
This warranty does not cover accidental damage. When returning
this unit for service, please include $10.00 for return postage
and handling. Send your unit to:
PYRAMID SERVICE CENTER
1600 63rd Street
Brooklyn, New York 11204
IMPORTANT: Pack carefully in original carton if possible. We are
not responsible for damage incurred in returning items for repair.
A letter stating your exact street address, daytime phone number,
and the problem you are experiencing should be included. You
must also enclose a copy of the original receipt as proof of date
of purchase.
FOR YOUR PROTECTION
Completely and immediately mail the Product Registration Card
so that we may contact you directly in the event a safety notification
is issued in accordance with the 1972 Consumer Product Safety
Act, or for other reasons Pyramid may deem necessary.
TECHNICAL SUPPORT HOTLINE
Our technical department will gladly answer any questions you
may have about our products. They cannot, however tell you the
status of a repair, or handle other customer service situations.
1-800-934-2277
Monday through Thursday, 9AM to 5PM
Friday 9AM to 2PM Eastern.