Australion monitor AMC30 Installation and Operation Manual

A M C S E R I E S

3 0 W / 6 0 W / 1 2 0 W / 2 5 0 W M I X E R A M P L I F I E R S

I N S TA L L AT I O N A N D O P E R AT I O N M A N UA L

I M P O RTA N T S A F E T Y I N F O R M AT I O N

1. Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing.

2. Read all documentation before operating your equipment. Retain all documentation for future reference.

3. Follow all instructions printed on unit chassis for proper operation.

4. Do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid.

5. Make sure power outlets conform to the power requirements listed on the back of the unit.

6. Do not use the unit if the electrical power cord is frayed or broken.

The power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles, and the point where they exit from the appliance.

7. Always operate the unit with the AC ground wire connected to the electrical system ground. Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.

8. Mains voltage must be correct and the same as that printed on the rear of the unit. Damage caused by connection to improper AC voltage is not covered by any warranty.

9. Have gain controls on amplifi ers turned down during power-up to prevent speaker damage if there are high signal levels at the inputs.

10 Power down & disconnect units from mains voltage before making

connections.

11. Never hold a power switch in the “ON” position if it won’t stay

12. Do not use the unit near stoves, heat registers, radiators, or other heat

13. Do not block fan intake or exhaust ports. Do not operate equipment on a surface or in an environment which may impede the normal fl ow of air around the unit, such as a bed, rug, weathersheet, carpet, or completely enclosed rack. If the unit is used in an extremely dusty or smoky environment, the unit should be periodically “blown free” of foreign matter.

14. Do not remove the cover. Removing the cover will expose you to potentially dangerous voltages. There are no user serviceable

15. Do not drive the inputs with a signal level greater than that required to drive equipment to full output.

16. Do not connect the inputs / outputs of amplifi ers or consoles to any other voltage source, such as a battery, mains source, or power supply, regardless of whether the amplifi er or console is turned on or off.

17. Do not run the output of any amplifi er channel back into another channel’s input. Do not parallel- or series-connect an amplifi er output with any other amplifi er output. Australian Monitor Inc is not responsible for damage to loudspeakers for any reason.

18. Do not ground any red (“hot”) terminal. Never connect a “hot” (red) output to ground or to another “hot” (red) output!

19. Non-use periods. The power cord of equipment should be unplugged from the outlet when left unused for a long period of time.

20. Service Information Equipment should be serviced by qualifi ed service

A. The power supply cord or the plug has been damaged.

B. Objects have fallen, or liquid has been spilled into the equipment

C. The equipment has been exposed to rain

D. The equipment does not appear to operate normally, or exhibits a marked change in performance

E. The equipment has been dropped, or the enclosure damaged.

I N T R O D U C T I O N A N D C O N T E N T S

The Australian Monitor AMC series of amplifi ers takes the heritage & reliability of our famous AMIS series amplifi ers & integrates these features into low cost amplifi ers for applications where reliability is everything, but the more elaborate features of our AMIS series are not required.

Available in 30, 60, 120 & 250 watt versions, the AMC series are 2 RU mixer amplifi ers, featuring 70/100 volt line & 4 ohm outputs, & 3 universal mic/line inputs

Master volume & overall treble & bass controls are provided, along with Vox triggered muting (defeatable), giving channel 1 priority over inputs 2 & 3.

There is also the facility to add a tone generator card.

The Australian Monitor AMC series gives the contractor a low cost alternative in applications that are price sensitive, but still require a high quality of sound reproduction & reliability.

I N T R O D U C T I O N 3

F R O N T PA N E L 4

R E A R PA N E L 5

I N S TA L L AT I O N 6

T R O U B L E S H O O T I N G & B L O C K D I A G R A M 7

F U N C T I O N A L N O T E S

& I N T E R N A L A D J U S T M E N T S 8

D I M E N S I O N S 9

S P E C I F I C AT I O N S 1 0

AUS, EUR, USA

Copyright 1st Apr 2005

Rev A: 1st Apr 2005

Rev B: 6th Jun 2006

This symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of suffi cient magnitude to constitute a risk of electric shock to persons.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK),

NO USER SERVICEABLE PARTS INSIDE,

REFER SERVICING TO QUALIFIED SERVICE PERSONAL.

WARNING!

TO REDUCE THE RISK OF FIRE OR ELECTRIC HOCK

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

This symbol is intended to alert the user to the presence of important operational and maintenance (servicing) instructions in the literature accompanying the appliance.

Caution: To prevent electric shock do not use this (polarised) plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.

To prevent electric shock, match wide blade of plug to wide slot, fully insert.

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L PA G E 3

F R O N T PA N E L

1

These control the levels for each channel input.

There is 12dB of cut and boost at 100Hz.

There is 9dB of cut and boost at 10kHz.

This controls the overall mixed output level.

This LED indicates the unit is powered “on”.

This switch switches power on or off the mains. The up position is on.

2 3 4 5 6

PA G E 4 A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L

R E A R PA N E L

6 5 4

Each channel input section has two inputs: XLR input - This is a balanced microphone input. It has an input sensitivity of 1mV. RCA input - This is an unbalanced line level input. It has an input sensitivity of 500mV. The two RCA sockets are summed to mono internally.

The TAPE output is on unbalanced RCA connectors.

The output level is 150mV into 10kohm at rated output. The output is dual mono.

The TAPE output is not affected by the MASTER volume control or the BASS and TREBLE controls.

The TAPE output does not receive the tone signal if the optional tone generator module is installed.

The LINE output is on a balanced XLR connector. The output level is 1V into 1k at rated output.

NOTE: When wiring the LINE output as unbalanced, Pin2 should be wired as hot and Pin1 should be wired as ground/ shield. Do not wire Pin3.

7 3 2 1

MINIMUM IMPEDANCE

AMC30

Distributed Line Output

70V (115V version) 166ohm

100V (230/240V version) 333ohm

AMC60 AMC120

83ohm

166ohm

41ohm

83ohm

Low Impedance Output

(both versions) 4ohm 4ohm 4ohm

NOTE: Only connect one output - either Distributed Line or Low

Impedance per channel. Do LowZ and 70/100V at the same time

AMC250

20ohm

40ohm

4ohm

The output strip comes fi tted with a touch-proof cover held in place by two M3 machine screws with fl at and spring washers..

5

IEC MAINS INPUT SOCKET

This is a standard IEC 3 pin socket. It accepts a standard IEC mains cable, provided. The fuse draw at 5 contains the mains fuse and a spare. The mains fuse is a time lag (slow blow)

HRC 20mm x 5mm ceramic type fuse.

The ratings are:

AMC30 AMC60 AMC120 AMC250

230V/240V model

115V model

0.5A

1A

1.6A

3.15A

2A

4A

3.15A

6.3A

The speaker connections are on the 12 pole terminal strip. There is a low impedance output (OHM) and a distributed line voltage output (LINE). 70V out is available on 115V models. 100V out is available on

230V/240V models.

Always replace the fuse with one of the same value and type.

NOTE: Always disconnect power to the amplifi er before replacing fuses.

6

VOLTAGE SELECT SWITCH

(only on 230V/240V models) This switch is used to select the mains voltage for your region.

Always replace the fuse with one of the same value and type.

7

(OPTIONAL) TONE MODULE

These terminals are for use with an optional tone module (not supplied).

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L PA G E 5

I N S TA L L AT I O N

MOUNTING

When rack mounting, it is advisable to allow 1 rack space above and below the amplifi er. When multiple amplifi ers are mounted in a rack, exhaust fans should be used on the rack. Airfl ow for cooling the AMC30,

AMC60 & AMC120 is by convection from bottom to top. Airfl ow for cooling the AMC250 is by fan from front to back.

OUTPUT

100V

70V

4 ohm

DISTANCE

Up to 50m

50m–200m

Over 200m

Up to 50m

50m–200m

Over 200m

Up to 10m

10m–30m

Over 30m

AMC30

AWG26(0.12mm2)

AWG24(0.2mm2)

AWG20(0.5mm2)

AWG26(0.12mm2)

AWG20(0.5mm2)

AWG18(0.75mm2)

AWG18(0.75mm2)

AWG13(2.5mm2)

Not Recommended

OUTPUT CONNECTIONS

DIRECT OUTPUT

The output terminal strip accepts wire sizes from 16-22AWG

(1.5mm2 – 0.35mm2) or spade lugs.

The following table should be used as a guideline for cable sizes.

Regulations in your area may require different gauged wire and should be checked before using.

WIRE SIZE

AMC60

AWG26(0.12mm2)

AWG20(0.5mm2)

AWG18(0.75mm2)

AWG24(0.2mm2)

AWG18(0.75mm2)

AWG16(1.5mm2)

AWG18(0.75mm2)

AWG13(2.5mm2)

Not Recommended

AMC120

AWG24(0.2mm2)

AWG18(0.75mm2)

AWG16(1.5mm2)

AWG22(0.35mm2)

AWG16(1.5mm2)

AWG13(2.5mm2)

AWG18(0.75mm2)

AWG13(2.5mm2)

Not Recommended

AMC250

AWG22(0.35mm2)

AWG16(1.5mm2)

AWG13(2.5mm2)

AWG18(0.75mm2)

AWG13(2.5mm2)

AWG10(6.0mm2)

AWG18(0.75mm2)

AWG13(0.35mm2)

Not Recommended

NOTE: Only connect one output - either Distributed Line or Low Impedance.

LINE OUTPUT he LINE output XLR can be used to connect up to 6 booster amplifi ers. Balanced wiring

(shielded pair cable) is recommended.

NOTE: When wiring the LINE output as unbalanced, Pin2 should be wired as hot and Pin1 should be wired as ground/shield.

Do not wire Pin3.

TAPE OUTPUT

The TAPE output wiring should be kept as short as possible.

INPUT CONNECTIONS

PA G E 6

For wiring balanced in, pin 2 is hot. Unbalanced wiring on the microphone inputs is not recommended. Balanced input wiring (shielded pair cable) is recommended.

Unbalanced RCA wiring should be keep as short as possible.

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L

T R O U B L E S H O O T I N G & B L O C K D I A G R A M

T R O U B L E S H O O T I N G G U I D E

Power LED not on

Distorted sound

No sound but amp is on

No sound from channels 2 & 3

Condenser microphone does not work

Tones do not sound when triggered

Power not reaching amplifi er

Check mains connection

Check mains fuse

Output is short circuit

Input is overloaded

Output is being over driven

Bass control is turned up

Volume controls down

Amplifi er has overheated

(AMC60, AMC120 AMC250 only)

DC fuse(s) blown

Priority function is being used

Amplifi er does not have phantom power

Tone generator module not installed.

Check power switch is on

Check speaker loads for shorts

Reduce input level at source

Reduce volume levels on front panel

Reduce Bass control level

Check volume controls

Check for obstructions above and below

Make sure the amplifi er is

Refer product to local Australian Monitor dealer

Remove signal (disconnect input) from channel 1 OR Disable priority function

(see Internal Adjustments)

Purchase an external power supply OR

Upgrade to the AMIS range of amplifi ers

Purchase optional Tone generator module

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L PA G E 7

F U N C T I O N A L N O T E S & I N T E R N A L A D J U S T M E N T S

PRIORITY

Channel 1 will mute channels 2 and 3. This will only occur when signal appears on channel 1, irrespective of the channel volume control.

Priority can be disabled. (See below).

The release time is approx. 3 secs and is NOT adjustable.

The mute depth is approx. 40dB and is not adjustable.

PA G E 8 A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L

D I M E N S I O N S

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L PA G E 9

S P E C I F I C AT I O N S

POWER OUTPUT (0.5%THD, 1KHZ)

S/N RATIO

POWER BANDWIDTH (-3DB +1DB)

FUSES MAINS (115V)

DC

OUTPUT REGULATION

SIZE (WXHXD)

NET WEIGHT

SHIPPING WEIGHT

SHIPPING DIMENSIONS (WXHXD)

MAINS CURRENT DRAW (240V)

FULL POWER

1/3 POWER

1/8 POWER

IDLE

MAINS CURRENT DRAW (115V)

1/3 POWER

1/8 POWER

IDLE

0.73A

0.48A

0.35A

0.17A

0.35A

0.23A

0.17A

0.08A

AMC 30 AMC 60

30W

> 75dBr

85Hz-15kHz

1.0A

60W

> 75dBr

75Hz-15kHz

3.15A

0.5A

1.6A (x2)

1.6A

4A

96%

482x88x190mm

19”x3.5”x7.5”

6.0kg

13.2lb

7.5kg

16.5lb

93%

482x88x281mm

19”x3.5”x11.1”

8.5kg

18.7lb

10.5kg

23.1lb

510x145x297mm 525x175x385mm

20.1”x5.7”x11.7” 20.7”x6.9”x15.2”

AMC 120

120W

> 80dBr

75Hz-15kHz

4A

2A

8A

93%

482x88x281mm

19”x3.5”x11.1”

10.5kg

23.1lb

12.5kg

27.6lb

525x175x385mm

20.7”x6.9”x15.2”

AMC 250

250W

>85dBr

30Hz-20kHz

6.3A

3.15A

10A (x2)

90%

482x88x384mm

19”x3.5”15.1”

11.5kg

25.3lb

14kg

30.8lb

525x185x470mm

20.7”x7.3”x18.5”

1.38A

0.92A

0.67A

0.27A

0.66A

0.44A

0.32A

0.13A

2.50A

1.67A

1.15A

0.31A

1.20A

0.80A

0.55A

0.15A

5.28A

3.36A

2.30A

0.31A

2.53A

1.61A

1.10A

0.15A

PA G E 1 0 A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L

S P E C I F I C AT I O N S

THERMAL OUTPUT (W)

IDLE

THERMAL OUTPUT (BTU/HR)

IDLE

COMMON TO ALL MODELS

THD (1KHZ, -1DB)

MIC INPUT SENSITIVITY

IMPEDANCE

HEADROOM

AUX INPUT SENSITIVITY

IMPEDANCE

HEADROOM

TONE CONTROL BASS @ 100HZ

TREBLE @ 10KHZ

LINE OUT NOMINAL OUTPUT

OUTPUT

TAPE OUT NOMINAL OUTPUT

OUTPUT IMPEDANCE

AMC 30

38W

33W

26W

11W

AMC 60

67W

63W

51W

19W

AMC 120

128W

118W

91W

26W

130

113

229

215

437

403

884

788

90 172 311 573

38 65 89 89

*1/3 and 1/8 power levels relate to voltage changes, not load changes.

AMC 250

259W

231W

168W

26W better than 0.5%

1mV @ 200ohm

1k3 ohm

77mV (37dB)

0.5V+/@100kohm

>200kohm

> 15V (>30dB)

+/- 12 dB

+/- 9 dB

1V @ 1kohm

100ohm

300mV @ 10kohm

10kohm

A M C S E R I E S I N S TA L L AT I O N & O P E R AT I O N M A N U A L PA G E 1 1

AUSTRALIA AND NEW ZEALAND

w w w. a u s t r a l i a n m o n i t o r. c o m . a u

SYDNEY

(NSW & ACT SALES)

MELBOURNE

(VIC & TAS SALES)

BRISBANE

(QLD SALES)

ADELAIDE

(SA & NT SALES)

PERTH

(WA SALES)

AUCKLAND

(NZ SALES)

149 Beaconsfi eld

Street Silverwater

NSW 2128

Private Bag 149

Silverwater NSW 1811

Phone: (02) 9647 1411

Fax: (02) 9648 3698

22/277

Middleborough Road

Box Hill VIC 3128

PO Box 151 Blackburn

South VIC 3130

Phone: (03) 9890 7477

Fax: (03) 9890 7977

Email: [email protected]

Email: [email protected]

42 Commercial Road

Fortitude Valley

QLD 4006

PO Box 871 Fortitude

Valley QLD 4006

Phone: (07) 3852 1312

Fax: (07) 3252 1237

Email: [email protected]

31 Walsh Street

Thebarton

SA 5031

PO Box 157

Hindmarsh SA 5007

Phone: (08) 8352 4444

Fax: (08) 8352 4488

Email: [email protected]

299 Fitzgerald Street

West Perth WA 6005

PO Box 404

North Perth

WA 6906

Phone: (08) 9228 4222

Fax: (08) 9228 4233

Email: [email protected]

Unit B, 11 Piermark

Drive Albany 1331

New Zealand

PO Box 512

Albany 1331

Phone: (09) 415 9426

Fax: (09) 415 9864

Email: [email protected]

EUROPE / ASIA / MIDDLE EAST

w w w. a u s t r a l i a n m o n i t o r. c o m . a u

INTERNATIONAL SALES

149 Beaconsfi eld Street Silverwater NSW 2128 Australian

Private Bag 149 Silverwater NSW 1811

Phone: (02) 9647 1411

Fax: (02) 9648 3698

Email: [email protected]

USA / SOUTH AMERICA

w w w. a u s t r a l i a n m o n i t o r. c o m

SENNHEISER ELECTRONIC CORPORATION

1 Enterprise Drive

Old Lyme CT 06371 USA

Phone: 1 860 434 9190

Fax: 1 860 434 1759

Email: [email protected]