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Contents

Safety 

02-03

Introduction to QA Series 

04

Connections 

05

Amplifer installation information

 

06-07

Installation procedure

 

08-09

System configuration diagrams 

09-10

Specifications 

11

CONTENTS / SAFETY

Carefully read the user manual 
fully prior to use. Improper use can 
cause damage to the amplifier and 
any speakers attached to it. Please 
be aware of correct wiring and 
configurations as directed in the 
Installation section of this manual.

Do not attempt to clean any plastic 
parts with solvents or petrochemical 
based cleaners.

The power voltages inside this 
device are high and could cause 
serious injury or death if touched 
while the power is connected. Do 
not open the amplifier case as there 
are no user serviceable parts inside.

Safety Precautions

Installation allowing direct 
precipitation is not advised and 
installation practise 

must

 prevent 

liquids from entering the box. 

Do not place sources of heat on or 
around the amplifier such as lighting 
equipment or smoke machines, and 
where possible please keep out of 
direct sunlight.

Do not place magnetic sensitive 
equipment on or around amplifiers

QA

 SERIES

User Manual

User Manual

QA

 Series

Power Amplifiers

Summary of Contents for QA 4004

Page 1: ...QA SERIES QA 1004 QA 2004 QA 3004 QA 4004 POWER AMPLIFIERS user manual...

Page 2: ...ts with solvents or petrochemical based cleaners The power voltages inside this device are high and could cause serious injury or death if touched while the power is connected Do not open the ampli er...

Page 3: ...u for choosing Quest Please take the time to complete your procuct registration card which is included with the packaging Registering your Quest Engineering product will 6 Do not locate ampli ers clos...

Page 4: ...r is then subjected to stress testing before shipping It follows that if your audio installation is completed with the same attention to detail your ampli er will deliver its best results It is recomm...

Page 5: ...orrect wiring instructions A W L A YS SWITCH OFF AMPLIFIER BEFORE OPERATING BRIDGE SWITCH 11 LIMITER Switches between off and on 12 GAIN Input switch to calibrate mixer line level to ampli er input se...

Page 6: ...r band pass type bass boxes The ampli er can be used to power a bass system without the need for an electronic crossover by switching the high pass to 35Hz and the low pass to 80 or 110Hz The input li...

Page 7: ...to control amplifier level Parallel Mono is selected when you have an odd number of speakers such a three Instead of leaving the amplifier in stereo two channel mode and driving two on one side and o...

Page 8: ...y essential Damage to the ampli er caused by incorrect rack mount installation or transit damage is not covered by the warrantee Installation and electrical interference Avoid installing your ampli er...

Page 9: ...e output speaker connector the speaker is now connected across the two channels Power is proportional to the square of the voltage swing so four times the output power is possible The reality is that...

Page 10: ...PIN 1 SIGNAL GROUND LINK A LINK B INPUT A INPUT B Push ToReset 220 240V 10A 50 60Hz OUTPUT A OUTPUT B BRIDGE PIN1 PIN2 PIN3 SIGNAL GND SIGNAL SIGNAL CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN OFF 80H...

Page 11: ...ode switch and gain select switch Two front panels attenuators rear panel mode switch and gain select switch Hi Pass Linkwitz Reily 24 db Octave Off 35 80 Hz Off 35 80 Hz Low Pass Linkwitz Reily 24 db...

Page 12: ...www questaudio net...

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