background image

PAGE 3

AMB SERIES AUDIO POWER AMPLIFIERS INSTALLATION AND OPERATION MANUAL

Revision 1.1: Oct 2014 

INTRODUCTION 3

FEATURES & PROTECTION FEATURES 

4

CONTROLS, CONNECTORS & INDICATORS 

5

INSTALLATION 7

OPERATION 9

MAINTENANCE 10

SPECIFICATIONS 11

WARNING!

TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THE PLUG WITH  

AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES  

CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE. 

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE 

THIS APPLIANCE TO RAIN OR MOISTURE. 

TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE PLUG TO WIDE SLOT & FULLY INSERT.

CAUTION

THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED SERVICE PERSONNEL ONLY.  

TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT 

CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

CAUTION

RISK OF ELECTRIC SHOCK 

DO NOT OPEN

The lightning flash with 

arrowhead symbol, within an 

equilateral triangle, is intended to 

alert the user to the presence of 

uninsulated “dangerous voltage” 

within the product’s enclosure 

that may be of sufficient 

magnitude to constitute a risk  

of electric shock to persons.

WARNING:

TO REDUCE THE RISK OF 

ELECTRIC SHOCK, DO NOT 

REMOVE COVER (OR BACK).NO 

USER SERVICEABLE PARTS 

INSIDE. REFER SERVICING TO 

QUALIFIED SERVICE 

PERSONNEL.

The exclamation point within an 

equilateral triangle is intended 

to alert the user to the 

presence of important operating 

and maintenance (servicing) 

instructions in the literature 

accompanying the appliance.

For European Union countries: This symbol on  

the product or its packaging indicates that this 

product must not be disposed of with other waste.

Instead, it is your responsibility to dispose of your 

waste equipment by handing it over to a designated 

collection point for the recycling of waste electrical 

and electronic equipment.

Please contact your local authority for further details 

of your nearest designated collection point.

Rating plate and caution marking are marked on the back enclosure of the apparatus

INTRODUCTION AND CONTENTS

AMB SERIES 

Congratulations on choosing Australian Monitor for your professional 
amplification requirements. 

The design of our AMB Series Audio Power Amplifiers embraces all  
the aspects of a well designed amplifier. The visual design, mechanical, 
electrical and sonic parameters, along with our dedicated manufacturing 
process, have all been optimized to provide a professional tool that 
exhibits quality, reliability and longevity.

The AMB Series amplifiers are 2 unit (3.5”) high, 19” wide, rack 
mountable units. 

Each channel of the amplifier comprises a balanced active input  
with a buffered attenuator driving a drive stage which in turn drives a 
fan-cooled output stage. The amplifier operates from a linear power 
supply. 

These amplifiers have been specifically designed to deliver their high 
power output with minimal distortion, and provide the critical degree  
of control required by your speakers.

Summary of Contents for AMB1200

Page 1: ...INSTALLATION AND OPERATION MANUAL AMB SERIES AUDIO POWER AMPLIFIERS AMB600 AMB1200 AMB1600 ...

Page 2: ...ker wiring during normal operation 1 LISEZ ces instructions 2 Tenez ces instructions 3 Notez tous les avertissements 4 Suivez toutes les avertissements 5 N utilisez pas ce produit près de l eau la piscine la plage le lac etc 6 Nettoyez seulement avec une étoffe sèche 7 Ne bloquez aucuns troux de ventilation Installez en accord avec les instructions du manufacturier 8 N installez près aucunes sourc...

Page 3: ...alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance For European Union countries This symbol on the product or its packaging indicates that this product must not be disposed of with other waste Instead it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point...

Page 4: ...nectors Stereo bridged Mono parallel operation Binding post and 4 pole speaker output connection Output clip indication per channel Multi role output fault indication High quality close tolerance components throughout Individual Signal LED Bar graph for status indication per channel PROTECTION FEATURES Suppression of inrush current at mains turn on Radio frequency interference suppression Short ci...

Page 5: ...mplifier is 4 Ohms per channel 8 Ohms bridged If an overload occurs the amplifier will run into a current limit mode restricting the excess current beyond set limits 4 Attenuator Level control for your amplifier is provided by a potentiometer on the front panel and indicates gain There are two controls on all AMB models Each control is labelled for the channel which it operates 5 Status Indicator ...

Page 6: ...connector wiring 12 Mains Connection Your amplifier is fitted with an internationally recognised IEC mains inlet connector Please ensure that the connecting mains lead for use with the IEC connector is of an approved type and is of sufficient current carrying ability NOTE Your unit must always be earthed 13 Circuit Breaker The amplifier is fitted with a resettable circuit breaker If the circuit br...

Page 7: ... 3 is connected to pin 1 input ground either by linking the pins in the input connector or by the source equipment s output wiring When wiring for an unbalanced source Pin 1 GROUND SHIELD Pin 2 HOT in phase with the amplifier s output Pin 3 GROUND SHIELD joins to pin 1 NOTE In line XLR connectors often have a termination lug that connects directly to the chassis of the connector IMPORTANT Do not l...

Page 8: ...oblem It is generally more difficult to eliminate this kind of interference but again moving the source away or providing a magnetic shield i e a steel shield should help Earth loops can arise from the interfacing of the various pieces of equipment and their connections to various safety earths This is by far the most common cause of hum and it occurs when source equipment and the amplifier are pl...

Page 9: ...rough an initialising period before it will accept signal The Inrush Current Suppression ICS circuit is in operation for the first 0 5 seconds This limits the mains current to prevent nuisance tripping of circuit breakers During this period you will hear a couple of relays click indicating mains is now directly applied to the amplifier and the signal path is connected While the ICS circuit operate...

Page 10: ...fan blades and reduce their cooling efficiency The time taken for this to happen will depend on the environment and the amount of use The fan blades are accessible once the lids are removed and can be easily cleaned You need only hold the fan rotor still and wipe the dust off the blades Many users stall the fan and use compressed air to blow the dust off the fan blades It is important to note that...

Page 11: ...1kHz 8Ω Input Connectors 2 Female XLR 2 Male XLR 2 Female XLR 2 Male XLR 4 Female XLR 2 Male XLR Input Impedance 20kΩ 20kΩ 20kΩ Balanced line to line Output Impedance 40mΩ 40mΩ 40mΩ Input Sensitivity 1 23Vrms 4 0dBu 1 23Vrms 4 0dBu 1 23Vrms 4 0dBu 0 2V Level control at maximum Input CMRR 55dB 55dB 55dB 20Hz 20kHz Output Connectors 4 x Binding Posts 2 x Neutrik speakON 4 x Binding Posts 2 x Neutrik...

Page 12: ...Load Power 1W 3 412BTU Hr 1 8th Power 1266 2115 2634 Excludes Load Power 1W 3 412BTU Hr 1 3 Power 1706 2661 3469 Excludes Load Power 1W 3 412BTU Hr Full Power 1952 3153 3685 Excludes Load Power 1W 3 412BTU Hr Dimensions W x D x H 88mm x 483mm x 366mm 3 5 x 19 x 14 41 88mm x 483mm x 366mm 3 5 x 19 x 14 41 88mm x 483mm x 366mm 3 5 x 19 x 14 41 Not including rack ears Shipping Dimensions W x D x H 18...

Reviews: