pb444x

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S u p e r B l u e

OwnersManualPB444XPB446XPB448XPB449X

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introduction

i owners manual

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 todays CDs and recordings. Used properly,

these amplifiers will provide you with years of listeningpleasure.table of contents Introduction

Table of Contents

Features and Controls, 2 ch amp PB444X

Features and Controls, 2 ch amp PB446X, PB449X

Specifications

Electrical Connections

Stereo Input Connections, 2 ch amp PB446X, PB449X

Speaker Connections, 2CH & Bridged mode, PB444X

Troubleshooting

Stereo & Mono Input Connections, 2 ch amp PB444X

Features and Controls, 4 ch amp PB448X

Mounting and Installation

Mono Input Connections, 2 ch amp PB446X, PB449X

4CH/Stereo Input Connections, 4 ch amp PB448X

Mono Input Connections, 4 ch amp PB448X

4CH Hi-Level Input Connections, 4 ch amp PB448X

Hi-Level Mono Input Connections, 4 ch amp PB448X

Speaker Connections, 2CH & Bridged mode, PB446X, PB449X

Speaker Connections, 4CH & Bridged mode, PB448X

i

i

2

4

1

9

12

11

21

18

6

8

13

14

16

15

17

19

20


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specif icat ions4 ch amplifier

PB448X

15-30 Khz( 3dB)+_

10-30 Khz( 3dB)+_

10-30 Khz( 3dB)+_

2 ch amplifier

PB449X

10-30 Khz( 3dB)+_

1000W x 1

250 mV (low)2.5 V (high)

20 K-Ohms (low)100 Ohms (high)

DC 14.4Vnegative ground(10.5-16V)

30 A

2-8 Ohms

500W x 2

yes

no

125W x 2

15.31x2.32x10.63

389 x 59 x 270

3.85

8.47

1

2 ch amp PB444X PB446X PB449X 4 ch amp PB448X

2 ch amplifier

PB444X2 ch amplifier

PB446X

output [email protected] V.D.C 1 Khz

bridged mode 600W x 1 500W x 2

frequency response

input sensitivity 150 mV 250 mV (low)2.5 V (high)

250 mV (low)2.5 V (high)

input impedance 10 K-Ohms 10 K-Ohms (low)100 Ohms (high)

20 K-Ohms (low)100 Ohms (high)

power supply voltage DC 14.4Vnegative ground(10.5-16V)



dimensions (W x H x D)

maximum current draw 15 A 20 A 30 A

matching speaker impedance 4-8 Ohms 2-8 Ohms 2-8 Ohms

bass/treble control

Maximum Power Output 200W x 2 300W x 2 250W x 4

yes noyes

400W x 1

subwoofer crossover no yesno

RMS Power Output @ 4 ohms 60W x 2 70W x 2 65W x 4

mm

inches

230 x 59 x 270

9.05x 2.32x 10.63 12.09x2.32x10.63

307 x 59 x 270

15.31x2.32x10.63

389 x 59 x 270

2.25

4.95

2.95

6.49

3.85

8.47

net weight

kg

lbs


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features and controls2 ch amp PB444X

2 owners manual

treble control

bass control

input gain control

low level inputs

protection indicator

power fuse

power terminals

speaker connections

power LED


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input gain control use this control to match the outputs ofyour head unit to the amplifier. Startingwith your head unit volume control set atabout the 2 oclock position, increase theamp gain control until distortion begins tooccur, and reduce slightly from this point.

low level inputs this amp features gold-plated RCA inputjacks for high impedance input. Use thesewith car stereo output which uses RCA-typeconnector cables.

speaker connections these terminals are 14K gold plated toguarantee high conductivity and minimumsignal loss.

treble control use this control to adjust the treble output levelto suit your taste or audio program material.

power fuse the fuse protects the amplifier and your cars

electrical system from short circuit conditions.

power terminals use these connectors to deliver power, ground,and remote turn-on control to the amplifier.

power LED this indicator is illuminated when poweris applied.

bass control use this control to adjust the bass output levelto suit your taste or audio program material.

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protectionindicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.

3

tor

ons


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features and controls2 ch amp PB446X PB449X

4 owners manual

power LED

treble control

input gain control

low level inputs

high level inputs

bass control

speaker connections

power terminals


bridged mode switch

power fuse


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5

input gain control use this control to match the outputs ofyour head unit to the amplifier. Startingwith your head unit volume control set atabout the 2 oclock position, increase the

amp gain control until distortion begins tooccur, and reduce slightly from this point.

high level inputs if your car stereo does not have RCA outputjacks, you can connect the speaker outputfrom the stereo system to the amplifier.


treble control use the control to adjust the treble output levelto suit your taste or audio program material.

power fuse the fuse protects the amplifier and your carselectrical system from short circuit conditions.



bass control use the control to adjust the bass output levelto suit your taste or audio program material.

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protection

indicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.


bridged mode switch the amplifier can be bridged to form ahigh-power one channel unit. Make surethat the speaker system on the bridgedchannel is capable of handling the ratedpower and is of the proper impedance.


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features and controls4 ch amp PB448X

6 owners manual

power LED

front input gain control

low level inputs

high level inputs

speaker connections

power terminals


power fuse

rear input gain control

front bridged mode switch

rear bridged mode switch

subwoofer crossover on/off switch

subwoofer crossover frequency control


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7

input gain controls use these controls to match the outputs ofyour head unit to each pair of amplifierinputs. Starting with your head unit volumecontrol set at about the 2 oclock position,

increase the amp gain controls untildistortion begins to occur, and reduce slightlyfrom this point.

high level inputs if your car stereo does not have RCA output

jacks, you can connect the speaker outputfrom the stereo system to the amplifier.


subwoofer crossoveron/off switch

this flexible amplifier can be set up withleft/right (or bridged) rear subwoofersystem(s). This switch activate the rearsubwoofer crossover.

power fuse the fuse protects the amplifier and your carselectrical system from short circuit conditions.



subwoofer crossoverfrequency control

when activated, this control sets the upperfrequency limit for signals sent to the rearchannel(s).

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protectionindicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.


bridged mode switch the amplifier can be bridged to form ahigh-power two channels unit. Make surethat the speaker system on the bridgedchannel is capable of handling the ratedpower and is of the proper impedance.

rol


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8 owners manual

ounting and installation2 ch amp PB444X PB446X PB449X 4 ch amp PB448XPlease read the Installation Precautions section below before installingyour Pyramid Super Blue amplifier, and then refer to the diagramsprovided to connect power, audio input and speaker connectionsaccording to your own system configuration requirements.

Installation Precautions Before you drill or cut any holes, investigate your cars layoutvery 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. Attachall audio system components securely within the automobileto prevent damage, especially in an accident.

Do not mount this amplifier so that the wire connections areunprotected or in a pinched condition, or likely to be damagedby nearby objects. Be sure to select a location inside yourvehicle which has adequate ventilation.

Before making or breaking power connections in your system,disconnect the vehicle battery. Confirm that your head unit orother equipment is turned off while connecting the input jacksand speaker terminals.

If you need to replace the power fuse, only replace it witha fuse identical to that supplied with the system. Using a fuse

of a different type or rating may result in damage to yoursystem which isnt covered by the manufacturers warranty.

solid mountingsurface

screw

spring washer

flat washer


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electrical connections2 ch amp PB444X PB446X PB449X

9

PB444X

PB446X PB449X

to remoteturn-on

+12V

head unit

head unit

12V battery

12V battery

to remoteturn-on

+12V


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10 owners manual

lectrical connections4 ch amp PB448X

to remoteturn-on

+12V

head unit

12V battery

PB448X


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mono input connections2 ch amp PB444X

stereo input connections2 ch amp PB444X

11

head unit

Y adaptors

To a secondamplifier

L/R audio outputs

head unit


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tereo input connections2 ch amp PB446X PB449X

12 owners manual

using low level inputs

using high level inputs

L/R audio outputs

head unit

R LR L

from speaker terminals

wiring harness

head unit

PLEASE NOTE! If usinghigh level inputs, do notuse the low level RCAinputs at the same time!


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monoinput connections2 ch amp PB446X PB449X

13

using low level inputs

using high level inputs

head unit

Y adaptors

to a secondamplifier

head unit

from speaker terminals

wiring harness

to a secondamplifier

wiringharness


L RL R


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/4 channel input connections4 ch amp PB448X

14 owners manual

4 CHinput connectionsusing low level inputs

2 CHinput connectionsusing low level inputs

L/R rearaudio outputs

head unit


left output

L/R frontaudio outputs

head unit

Y adaptorsright output


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hi level input connections4 ch amp PB448X

head unit

15

4 CHfloating ground connection

4 CHharness wiringfor common ground connection

LR L R

wiring harness

R L

FRONTREAR

R Lorange

black

black

orange

orange

black

black

orange

FRONTREAR

orange

black

black

orange

orange

black

black

orange

head unit


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ono input connections4 ch amp PB448X

16 owners manual

4 CHmono input connectionsusing low level inputs

2 CHmono input connectionsusing low level inputs

front outputshead unit


right audiooutputs

rear outputs

head unit

L R

R L

left audiooutputs


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hi level mono input connections4 ch amp PB448X

17

4 CHfloating ground connection

4 CHharness wiringfor common ground connection

L R

wiring harness

L Rorange

black

black

orange

orange

black

black

orange

fromspeaker

terminals

fromspeaker terminals

orange

black

black

orange

orange

black

black

orange

head unit

head unit


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peaker connections2 ch amp PB444X

18 owners manual

stereo output mode

bridged mono output mode

LEFT speaker

speaker

RIGHT speaker

MINIMUMSPEAKER

IMPEDANCE4 OHMS!


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speaker connections2 ch amp PB446X PB449X

LEFT speaker RIGHT speaker

speaker

19

stereo output mode


MINIMUMSPEAKER

IMPEDANCE4 OHMS!

mode switch in

STEREO position

mode switch inBRIDGED position


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speaker connections4 ch amp PB448X

20 owners manual

t

FRONTspeakers

REARspeakers

L R

R L

4 channel (stereo) output mode


speakersL R

mode switch in

STEREO position

mode switch inBRIDGED position

MINIMUMSPEAKER

IMPEDANCE4 OHMS!


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troubleshooting

21

2champPB444XPB446XPB449X4champPB442XPB448X

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/noisedisappears, then plug in the component driving the amplifierand 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 insensitiveas possible. The best subjective S/N ratio is obtainablethis way. Try to drive as high a signal level from the headunit 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.

Before removing your amplifier, refer to the list below and follow thesuggested procedures. Always test the speakers and their wires first.


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MANUFACTURERS LIMITED TWO YEAR WARRANTY

PYRAMID SOUND CORP. warrants this unit to be free fromdefective material or workmanship and will repair or replace thisunit or any part thereof if it proves defective in normal use orservice within two (2) years from the date of original purchase.

Our obligation under this warranty is limited to repairing orreplacing, at our discretion, the defective instrument or any partthereof when it is returned, transportation prepaid to the PyramidService Center at the address below. This warranty will be consi-dered 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 returningthis unit for service, please include $10.00 for return postageand handling. Send your unit to:

PYRAMID SERVICE CENTER1600 63rd Street

Brooklyn, New York 11204IMPORTANT: Pack carefully in original carton if possible. We arenot 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. Youmust also enclose a copy of the original receipt as proof of dateof purchase.

FOR YOUR PROTECTIONCompletely and immediately mail the Product Registration Cardso that we may contact you directly in the event a safety notificationis issued in accordance with the 1972 Consumer Product SafetyAct, or for other reasons Pyramid may deem necessary.

TECHNICAL SUPPORT HOTLINEOur technical department will gladly answer any questions youmay have about our products. They cannot, however tell you thestatus of a repair, or handle other customer service situations.

1-800-934-2277Monday through Thursday 9AM to 5PM

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