Owner’s
Manual
PB444X
PB446X
PB448X
PB449X
Super Blue
introduction
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
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
Table of Contents
Specifications
Features and Controls,
Features and Controls, 2 ch amp PB446X, PB449X
Features and Controls, 4 ch amp PB448X
Mounting and Installation
Electrical Connections
Stereo & Mono Input Connections,
Stereo Input Connections,
Mono Input Connections,
2 ch amp PB446X, PB449X
2 ch amp PB446X, PB449X
4CH/Stereo Input Connections, 4 ch amp PB448X
4CH Hi-Level Input Connections, 4 ch amp PB448X
Mono Input Connections, 4 ch amp PB448X
Hi-Level Mono Input Connections, 4 ch amp PB448X
Speaker Connections, 2CH & Bridged mode, PB444X
Speaker Connections, 2CH & Bridged mode, PB446X, PB449X
Speaker Connections, 4CH & Bridged mode, PB448X
Troubleshooting
2 ch amp PB444X
2 ch amp PB444X
Introduction
9
11
12
13
14
15
16
17
18
19
20
21
i
i
1
2
4
6
8
i
owner’s manual
2 ch amp PB444X • PB446X• PB449X•4champPB448X
specifications
PB444X
2 ch amplifier
output power
@14.4 V.D.C 1 Khz
Maximum Power Output 200W x 2 300W x 2 250W x 4
RMS Power Output @ 4 ohms 60Wx2 70Wx2 65Wx4
bass/treble control
subwoofer crossover no yesno
bridged mode 600W x 1 500W x 2
frequency response
input impedance 10 K-Ohms 10 K-Ohms (low)
input sensitivity 150 mV 250 mV (low)
power supply voltage DC 14.4V
matching speaker impedance 4-8 Ohms 2-8 Ohms 2-8 Ohms
400W x 1
15-30 Khz
( 3dB)
+_
negative ground
(10.5-16V)
PB446X
2 ch amplifier
yes noyes
10-30 Khz
( 3dB)
+_
100 Ohms (high)
2.5 V (high)
DC 14.4V
negative ground
(10.5-16V)
PB448X
4 ch amplifier
10-30 Khz
( 3dB)
+_
20 K-Ohms (low)
100 Ohms (high)
250 mV (low)
2.5 V (high)
DC 14.4V
negative ground
(10.5-16V)
PB449X
2 ch amplifier
500W x 2
125W x 2
yes
no
1000W x 1
10-30 Khz
( 3dB)
+_
20 K-Ohms (low)
100 Ohms (high)
250 mV (low)
2.5 V (high)
DC 14.4V
negative ground
(10.5-16V)
2-8 Ohms
maximum current draw 15 A 20 A 30 A
dimensions (WxHxD)
mm
inches
net weight
kg
lbs
230x59x270
9.05 x 2.32 x 10.63 12.09 x 2.32 x 10.63
2.25
4.95
307x59x270
2.95
6.49
389x59x270
15.31 x 2.32 x 10.63
3.85
8.47
30 A
389x59x270
15.31 x 2.32 x 10.63
3.85
8.47
1
2 ch amp PB444X
features and controls
low level inputs
bass control
treble control
input gain control
power LED
speaker connections
power fuse
protection indicator
power terminals
2
owner’s manual
low level inputs this amp features gold-plated RCA input
bass control use this control to adjust the bass output level
treble control use this control to adjust the treble output level
input gain control use this control to match the outputs of
power LED this indicator is illuminated when power
speaker connections these terminals are 14K gold plated to
power fuse the fuse protects the amplifier and your car’s
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
to suit your taste or audio program material.
to suit your taste or audio program material.
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.
is applied.
guarantee high conductivity and minimum
signal loss.
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
4
speaker connections
power terminals
protection indicator
power fuse
owner’s manual
high level inputs if your car stereo does not have RCA output
power LED this indicator is illuminated when power
low level inputs this amp features gold-plated RCA input
jacks, you can connect the speaker output
from the stereo system to the amplifier.
is applied.
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
treble control use the control to adjust the treble output level
bass control use the control to adjust the bass output level
bridged mode switch the amplifier can be bridged to form a
speaker connections these terminals are 14K gold plated to
power terminals use these connectors to deliver power, ground,
protection indicator if the amplifier is incorrectly wired or not
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.
to suit your taste or audio program material.
to suit your taste or audio program material.
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.
guarantee high conductivity and minimum
signal loss.
and remote turn-on control to the amplifier.
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
6
speaker connections
power terminals
power fuse
protection indicator
owner’s manual
power LED this indicator is illuminated when power
high level inputs if your car stereo does not have RCA output
is applied.
jacks, you can connect the speaker output
from the stereo system to the amplifier.
low level inputs this amp features gold-plated RCA input
input gain controls use these controls to match the outputs of
bridged mode switch the amplifier can be bridged to form a
subwoofer crossover
on/off switch
subwoofer crossover
frequency control
speaker connections these terminals are 14K gold plated to
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
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.
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.
this flexible amplifier can be set up with
left/right (or bridged) rear subwoofer
system(s). This switch activate the rear
subwoofer crossover.
when activated, this control sets the upper
frequency limit for signals sent to the rear
channel(s).
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•4champPB448X
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.
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.
8
• 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
owner’s manual
2 ch amp PB444X• PB446X• PB449X
electrical connections
PB444X
to remote
12V battery
turn-on
+12V
head unit
PB446X • PB449X
12V battery
to remote
turn-on
+12V
head unit
9
PB448X
12V battery
4 ch amp PB448X
to remote
turn-on
+12V
head unit
10
owner’s manual
2 ch amp PB444X
stereo input connections
head unit
L/R audio outputs
2 ch amp PB444X
mono in put connections
To a second
amplifier
head unit
Y adaptors
11
2 ch amp PB446X • PB449X
using low level inputs
L/R audio outputs
head unit
using high level inputs
wiring harness
RLRL
from speaker terminals
12
owner’s manual
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
head unit
2 ch amp PB446X •PB449X
mono in put connections
using low level inputs
to a second
amplifier
head unit
Y adaptors
using high level inputs
wiring harness
LRLR
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
head unit
from speaker terminals
to a second
amplifier
wiring
harness
13
4CHinput connections
4 ch amp PB448X
using
audio outputs
2CH
low level inputs
L/R front
audio outputs
L/R rear
input connections
using low level inputs
head unit
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
right output
14
left output
head unit
Y adaptors
owner’s manual
4 ch amp PB448X
hi level input connections
4CHfloating ground connection
wiring harness
head unit
orange
black
black
orange
RL
RL
FRONTREAR
4CHharness wiring
for common ground connection
orange
black
black
orange
FRONTREAR
orange
black
black
orange
head unit
LRLR
orange
black
black
orange
15
4CHmono input connections
4 ch amp PB448X
using
low level inputs
rear outputs
RL
LR
front outputs
2CH
using low level inputs
mono input connections
head unit
PLEASE NOTE! If using
high level inputs, do not
use the low level RCA
inputs at the same time!
16
right audio
outputs
head unit
left audio
outputs
owner’s manual
4 ch amp PB448X
hi level mono input connections
4CHfloating ground connection
wiring harness
head unit
orange
black
black
orange
L R
from
speaker
terminals
4CHharness wiring
for common ground connection
LR
speaker terminals
orange
black
black
orange
from
orange
black
black
orange
head unit
orange
black
black
orange
17
2 ch amp PB444X
stereo output mode
LEFT speaker
RIGHT speaker
bridged mono output mode
IMPEDANCE
speaker
MINIMUM
SPEAKER
4 OHMS!
18
owner’s manual
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
speaker connections
4 channel (stereo) output mode
mode switch in
STEREO position
LR
REAR
speakers
RL
bridged mono output mode
mode switch in
BRIDGED position
LR
speakers
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS!
FRONT
speakers
20
owner’s manual
2 ch amp PB444X • PB446X • PB449X•4champPB442X• PB448X
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.
Loading...