AUSTRALIAN MONITOR AM3002, Operation Manual

Page 1: ...Australian Monitor AM3002 Ausbdlan Monitor H tr r i r r 7 t I ll lt_ 1i l __ vi _ r LUI Operation Manual ...

Page 2: ...O2 power amplifier You should familiarize yourself with the contents of this manual before operating your amplifier Safety Precautions and Labelling The rearpanelofthe unit hasa numberof martingsand internationally recognized symbols related to the hazards and precautions that should be taken when operating MAINS connecled equipmenl The presenceof a LIGHTNING FLASHwith an aJrowhead containedwithin...

Page 3: ...ear carry handles Binding post and Neutrik Speakon output Front and rear mounting points connections High quality close tolerance components used lnput signal slrapping loop through connectors throughout Protection Features Suppression of inrush cumenl at mains turn on Thermaloverload protection and indication side chain mains swilching control Mains circuit Breaker lnput muting at turn on lndivid...

Page 4: ...idge Mode 6 TwoOhmorNotTwoOhm 7 Maintenance 8 Wananty 9 Specification List of Illustrations Figure 1 Block Diagram Figure2 Front Panel Layout Figure 3 Rear Panel Layout Figure 4 Case Dimensions Figure 5 Speakon Connector Wiring Figure 6 Bridge Mode Speaker Wiring l Page 5 6 7 I 11 13 15 16 17 18 19 Page 5 6 I 10 12 15 tu ...

Page 5: ...all 19 wide rack mountable unils Each channel ofthe amplifier comprises a balanced active input with an attenuator driving a differential class A drive stage which in turn drives a fan cooled class AB MOSFET output stage configured as a sourcefollower The unit operatesfrom a high curent capable linear power supply These units have been specifi callydesigned todeliver their high power oulput with m...

Page 6: ... I 6 Controls Connectors 2 Controls Connectors Indicators t 9 e o c g E t in Figure 2 Front Panel Layout tu ...

Page 7: ...ll not illuminate during normal use of the amplifier ln the advent of a thermal overload this LED will illuminate red indicating that the internaloperating temperature ofone or both amplifierchannels has exceeded a safe levelofoperation andthe amplifier will be shutdown The fanswill continueto run and oncethe amplifierhascooled down sufliciently the amplifierwill s art up automatically providing l...

Page 8: ... t 8 Controls Connectors I 2Zl 5t 9l ii ru t J ln H qe5 3 I L rII Figure 3 Rear Panel Layout tu ...

Page 9: ...s required before the breaker will reset back into circuit lfthe breaker trips immediately aftera reset lhen a fault may have developed within theamplifier 10 D C Rail Breakers YourAll3OOZ a m plifier is frtted with 15 Ampthermal acting circuit breakers as overload protection for the output stage of youramplifier These breakers are in series with the high cunent supply railsto the amplifie s outpu...

Page 10: ...3 O 117 20 1 r 5 15 2 26 1 l I t33 O 15 24 t l I f 920 3 A2 1 I I Figure 4 Dimensions Austrdian Monitor o E 461 1 118 16 1 J I 9ll fl tr l I l9l li ri ll ll Dr 111 l lr ll L i l ll _ w _ ll 1 i l t 1T l t g i l1 l r F l L9l o r l a ffi lYll 1 4 BSW by 4 tu ...

Page 11: ...ed Any restriction ofthe air flow will cause heat to build up within the unit and possibly force the unit into its thermal shutdown mode lf the unils are lo be operated in an environment wherethe airflow is restricted such as sealed racks or even when running 2 ohm loads the cooling should be supplemented by extra cooling fans to evacuate the heated air and aid the flow of cool airthrough the unit...

Page 12: ...DGE mode only lhe red binding posts are used channel A provides the positive output to the load and channel B provides the negative output to the load SPEAKON Outputs Figure 5 Speakon ConnectorWiing Diagram When using the NEUTRIK SPEAKoN NL4MP connector for speaker output use only the mating NEUTRIK NL4FC in line connector This connector is designed so that both channels can be fed from a single c...

Page 13: ...n off We recommend turning the altenuators on your amplifier down when turning the unit on When you power up your amplifier your amplifier goesthrough an establishment period before itwill acceptsignal The lnrush Cunent Suppression lCS circuit is in operation for the first 0 5 seconds This limitsthe mains cunent to prevent nuisance tripping ofcircuit breakers Ouring this period the THERMAL LED wil...

Page 14: ... amplified as hum There arethree things you can do to avoid earth loop problems 1 Ensure your mains powerforthe audio system is quiet i e without equipment on it such as air conditioning refrigeration or lighting which may generate noise in the earth circuit 2 Ensure all equipment within the system shares a common ground safety earth point This will reduce the possibility ofcirculating earth cunen...

Page 15: ...tin BRIDGE mode Whilst the amplifier is off 1 connedthe signal sourcelothe Channel Afemale inputXLR 2 Loop from Channel A male XLR to Channel B fe male inputXLRwith a Reverse Phase Lead A reverse Phase Lead is wired qlannel A qlannel B Pin 1 to Pin l Pin 2 to Hn 3 Pin 3 to Pin 2 3 Connect your load between the red binding post output terminals where the positive side of the load is connected tothe...

Page 16: ...ge excursion into a resistive loadfora sinewave ata given frequency Though this method is in line with the variousslandardsthat exist it only gives an indication tothe maximum voltage s wing before clipping for a given load This method ofrating powerdoes notgive an indication ofthe curenl Ampere capability ofthe amplifier nor does it show the amplifier s ability to sustain high energywaveforms You...

Page 17: ...ntheg llewhich maystartto hindertheairflow through the unit You should periodically removelhe dust and keep the grille clean Overtime dust may build up on the leading edgeof the fan blades and reduce their cooling efficiency Thelime taken forthis to happen willdepend 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 ...

Page 18: ...idence of alteration tions resulting from accidents misuse abuse erasure or forgery of the purchase receipt will also operation with the incorrect AC mains voltage void this warranty connection to faulty equipment modification or alteration withorJt priorfactoryapprovalorservice Australian Monitor accepts no liability for any by unauthorised personnel consequential damages whether direct or indire...

Page 19: ...re 4 ohm Voltage Gain Input CMRR 1 kHz re 8 ohm rating Signal Noise ratio 1 14 Vrms 3 3 dBu 1 0 vrms 2 2 dBu 63 5 times 36 dB 90 dB 106 dB 0 0170 0 02o o Output Impedance 1 kHz o o2o ohms Damping Factor 1 kHz re I ohms 80 leading edge of20kHz square wave Slew Rate 50V per pS leading edge 20kHz square wave clipping Frequency Response Input Impedance Output Rise Time 20 Hz 20 k z 3dB points 0 25 dB ...

Page 20: ...I 41 1 F ax 02 9648 3698 E mail nsw audiotelex com au Melbourne Ph 03 9890 7477 Fax 03 9890 7977 E mail vic audiotelex com au Brisbane Ph 07 3852 131 2 F ax O7 3252 1237 E mail qld audiotelex com au Adelaide Ph 08 8352 4444 Fax 08 8352 4488 E mail sa audiotelex com au Perth Ph 08 9228 4222 F ax OA 9228 4233 E mail wa audiotelex com au Auckland Ph 09 4159426 Fax 09 4 15 9864 E mail audiotlx nznet g...