Australian Monitor AMC MIX User Manual

INSTALLATION AND OPERATION MANUAL

AMC+ MIX

IMPORTANT SAFETY INFORMATION

PRÉCAUTIONS DURANT UTILISATION

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 amplifiers turned down during power-up to prevent
speaker damage if there are high signal levels at the inputs.

10. Power down and disconnect units from mains voltage before making
connections.

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

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

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 flow of air
around the unit, such as a bed, rug, weather sheet, 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 parts inside.

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 amplifiers or consoles to any other
voltage source, such as a battery, mains source, or power supply,
regardless of whether the amplifier or console is turned on or off.

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

18. Do not ground any “hot” terminal. Never connect a “hot” output to ground
or to another “hot” 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 qualified service
personnel when:
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.

21. Heed all Warnings.

22. Do not use this apparatus near water.

23. Clean only with a dry cloth.

24. Do not block any ventilation openings. Install in accordance with the

25. Do not defeat the safety purpose of the polarized or grounding - type plug.
type plug has two blades and a third grounding prong. The wide blade or
fit into your outlet, consult an electrician for replacement of the obsolete
outlet.

26. Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles ,and the point where they exit from the
apparatus.

27. Only use attachments/accessories specified by the manufacturer.

28. Use only with a cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/
apparatus combination to avoid injury from tip-over.

29. Unplug this apparatus during lightning storms or when
unused for long periods of time.

30. The AC/AC adaptor and apparatus shall not be exposed to dripping or
splashing and that no objects filled with liquids, such as vases, shall be
placed near apparatus.

L’ adaptateur AC/AC de l’appareil ne doit pas être obstruè ou doit être
facilement accessible pendant son utilisation. Pour être complétement
dèconnectè de l’alimentation d’entrèe, l’adaptateur AC/AC de l’appareil
doit être dèconnectè du secteur.

31. Mains plug is used as disconnect device and it should remain readily
operable during intended use. In order to disconnect the apparatus from
the mains completely, the mains plug should be disconnected from the
mains socket outlet completely.

La prise du secteur est utilisè pour dèconnecter le systéme. La prise du
secteur ne doit être obstruèe ou doit être facilement accessible pendant
son utilisation. Pour être complétement dèconnectè de l’alimentation
d’entrèe, la prise doit être dèbranchèe du secteur.

32. To be completely disconnect the power input, the mains plug of AC/AC
adaptor shall be disconnected from the mains .

33. A minimum distance of 5mm around the apparatus for sufficient
ventilation should be provided.

34. The ventilation should not be impeded by covering the ventilation opening
with items such as newspaper, table-cloths,curtain etc.

35. No naked flame sources such as lighted candles should be placed on the
apparatus .

36. This product is designed for moderate climates only.

INTRODUCTION AND CONTENTS

AMC+ MIX

The Australian Monitor AMC+ Mix mixer takes the affordability
and ease of use of our AMC+ series amplifiers and integrates the
front end into a low cost mixer for applications where reliability is
everything, but the more elaborate features of larger mixers are not
required.

The AMC+ Mix is a 1 RU mixer with 4 universal mic/line inputs.
Master volume and overall treble and bass controls are provided,
along with Vox triggered muting (defeatable), giving channel 1
priority over inputs 2 and 3. There is also the facility to add a tone
generator card.

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

INTRODUCTION 3

FRONT PANEL 4

REAR PANEL 5

INSTALLATION 6

TROUBLESHOOTING AND BLOCK DIAGRAM 7

FUNCTIONAL NOTES AND INTERNAL ADJUSTMENTS 8

DIMENSIONS 9

SPECIFICATIONS 10

NOTES 11

Revision 1.4 October 2012

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

FIRE OR ELECTRIC SHOCK DO NOT EXPOSE

THIS EQUIPMENT TO RAIN OR MOISTURE

AVERTISSEMENT: POUR ÈVITER

LE RISQUE D’INCENDIE OU DE CHOCS

ÈLECTRIQUES, NE PAS EXPOSER CET

APPAREIL À LA PLUIE OU À L’HUMIDITÈ

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.

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

PAGE 3AMC+ MIX INSTALLATION AND OPERATION MANUAL

FRONT PANEL

1

CH 1–4

These control the levels for each channel input.

2

Bass

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

3

Treble

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

5 62 3 41

4

Master

This controls the overall mixed output level.

5

On

This LED indicates the unit is powered “on”.

6

Power

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

PAGE 4 AMC+ MIX INSTALLATION AND OPERATION MANUAL

REAR PANEL

123645

1

CH 1–4

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 150mV. The two RCA
sockets are summed to mono internally.

2

REC Output

The REC output is on unbalanced RCA connectors. The output level is 150mV
into 10kohm at rated output. The output is dual mono.

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

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

3

Line Output

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.

4

(Optional) Tone Module

These terminals are for use with an optional tone module (not supplied).
Use Australian Monitor ATC5488 module.

5

AC Power Socket

This is a 5.5mm x 2.1mm barrel socket. It accepts 20V AC power from the plug
pack provided.

6

Phantom Power

12V phantom power is available for condenser or electret microphones on the
XLR input when this switch is pushed in.

PAGE 5AMC+ MIX INSTALLATION AND OPERATION MANUAL

INSTALLATION

Mounting

Your amplifier is designed for standard 19” rack mounting and occupies 2 EIA
rackunits (3.5”).

The mounting centres are:
Vertical: 1.5” (38.1mm) Horizontal: 18.2” (461.2mm) to 18.7” (473.8mm)

The slots in the mounting flange will accept bolt diameters up to 1/4”
(6.35mm). We recommend that you provide additional support for the amplifier,
especially if road use is planned, as the weight could bend some rack frames.
This support can be provided by secure shelving on support rails.

OUTPUT CONNECTIONS

Montage

Cet ampli convient pour un montage en rack de 19” et a 2 unités de 3.5”.

Les centres de montage sont:
Vertical: 1.5” soit 38.1.2 mm Horizontal: de 18.2” (soit 461.2mm) à 18.7”
(soit 473.8 mm).
Vous pouvez mettre des vis de 6.5 mm maximum dans ls fentes de la bride de
montage. Nous vous recommandons un support supplémentaire car le poids
peut parfois faire plier le chassis en cas d’usage intensif.

Line Output

The LINE output XLR can be used to connect up to 6 booster amplifiers.
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.

Rec Output

The TAPE output wiring should be kept as short as possible. Typically less
than 3m.

Input Connections

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. Typically less
than 3m.

PAGE 6 AMC+ MIX INSTALLATION AND OPERATION MANUAL

TROUBLESHOOTING AND BLOCK DIAGRAM

TROUBLESHOOTING GUIDE

Trouble Likely Cause Remedy

Power LED not on Check power switch is on Check plug pack connection

Distorted sound Input is overloaded

Output is being over driven

Bass control is turned up

No sound but mixer is on Volume controls down

Connected amplifier is switched off

No sound from channels 2 and 3 Priority function is being used

Tones do not sound when triggered Tone generator module not installed Purchase optional Tone generator module

Reduce input level at source

Reduce volume levels on front panel

Reduce Bass control level

Check volume controls

Check amplifiers and speakers

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

PAGE 7AMC+ MIX INSTALLATION AND OPERATION MANUAL

FUNCTIONAL NOTES AND INTERNAL ADJUSTMENTS

Priority

Channel 1 will mute channels 2, 3 and 4. 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.

PAGE 8 AMC+ MIX INSTALLATION AND OPERATION MANUAL

DIMENSIONS

PAGE 9AMC+ MIX INSTALLATION AND OPERATION MANUAL

SPECIFICATIONS

Frequency Response 20Hz - 20kHz (+0,-3dB)

Total Harmonic Distortion

< 0.5% @ 1kHz

Signal To Noise Ratio > 84dB (all pots at centre position)

Crosstalk > 60dB

Tone Controls Bass @ 100Hz +/- 12dB

Treble @ 10kHz +/- 9dB

Sensitivity Mic Sens 0.7mV, -61dBu Imp 1k3ohm
RCA 150mV, -4dBu Imp >100kohm

Max Level in XLR mic -20dBu
RCA >30dBu

Max Level out +14dBu

Outputs Master out Nominal Level 0dBu into 1kohm

Imp 100ohm
Mono Rec out Nom -16dB into 10kohm
Imp 10kohm

Power Input 20V AC via 2.1mmx5.5mm barrel socket

Power Consumption (max) 7 VA

Dimensions WxHxD 482mm x 44mm x 191.5mm (1.75“x19”x7.54”)

Shipping Dimensions 90mm x 505mm x 270mm (3.5” x 19.9” x 10.6”)

Net Weight 2.5kg (5.5lb)

Shipping Weight 3.5kg (7.7lb)

PAGE 10 AMC+ MIX INSTALLATION AND OPERATION MANUAL

NOTES

PAGE 11AMC+ MIX INSTALLATION AND OPERATION MANUAL

ENGINEERED BY AUSTRALIAN MONITOR

Address: 1 Clyde Street, Silverwater, Sydney NSW 2128 Australia. Private Bag 149, Silverwater NSW 1811 ACN 007 573 417
Website: www.australianmonitor.com.au International enquiries email: [e-mail]

DISTRIBUTED IN AUSTRALIA AND NEW ZEALAND BY HILLS SVL www.hillssvl.com.au

NSW QLD ACT WA VIC SA NZ
P: 02 9647 1411 P: 07 3852 1312 P: 02 6260 4544 P: 08 9204 0200 P: 03 9890 7477 P: 08 8408 8300 P: 09 415 9426
E: [e-mail] E: [e-mail] E: [e-mail] E: [e-mail] E: [e-mail] E: [e-mail] E: [e-mail]