AUSTRALIAN MONITOR HS60, HS250, HS120 Installation And Operation Manual

INSTALLATION AND OPERATION MANUAL

HS SERIES

MIXER AMPLIFIER HS60

HS120

HS250

PAGE 2

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

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 sources de chaleur comme radiateurs, registres
de chaleur, fours ou les autres équipements (y compris amplificateurs) qui
produisent la chaleur.

9. Ne défaites pas le but de sécurité de la fiche polarisée ou base-type. Une
fiche polarisée a deux tranchants avec un plus large que l’autre. Une fiche
de base type a deux a deux tranchants et une troisième pointe de base,
le tranchant large ou la troisième pointe est fourni pour votre sécurité. Si
la fiche donnée ne conforme pas votre prise de contact, consultez un
électricien pour remplacement de la prise de contact obsolète.

10. Protegez le cordon de secteur contre être marchée dessus ou pincez en
particulier aux fiches, aux douilles de convenance, et au point où ils
sortent de l’appareil.

11. Seulement utilisez attachements/accessoires spécifiés par le manufacturier.

12. Utilisez seulement avec un chariot, un stand, un trépied, un support ou
une table indiquée par le manufacturier, ou vendue avec l’appareil. Quand
un chariot est utilisé, faites attention en déplaçant la combinaison
d’appareil/chariot pour éviter de se déséquilibrer.

13. Arrachez la fiche du dispositif durant éclair et orage ou quand pas utilisé
pour longues périodes de temps.

14. Référez au personnel qualifié de service pour toutes
réparations. La réparation est donnée quand le système
a été endommagé à n’importe façon, par exemple un fil
ou une fiche endommagé(e) de la source d’alimentation.
Avoir été exposé à pluie ou humidité, n’opère pas
normalement, ou avoir été tombé.

15. L’appareil ne doit pas être exposé aux écoulements ou aux éclaboussures
et aucun objet ne contenant de liquide, tel qu’un vase, ne doit être placé
sur l’objet.

16. Branchez l’appareil à une source appropriée et faire que la prise à
débrancher soit facilement accessible.

17. La prise du secteur ne doit pas être obstruée ou doit être facilement
accessible pendant son utilisation. Pour être complètement déconnecté
de l’alimentation d’entrée, la prise doit être débranchée du secteur.

18. AVERTISSEMENT: Pour éviter le risque d’incendie ou de chocs électriques,
ne pas exposer cet appareil à la pluie ou à l’humidité.

19. Un appareil avec la borne de terre de protection doit être connecté au
secteur avec la connexiion de terre de protection.

20. Assurez-vous que l’appareil est hors tension avant de connecter les hauts
parleurs. Verifiez que la sortie des enceintes soit protégées contre un
contact physique. Respecter les polarités des terminaux ainsi que le
câblage des enceintes pendant le fonctionnement afin d’assurer une
utilisation sécurisee.

IMPORTANT SAFETY INFORMATION PRÉCAUTIONS DURANT UTILISATION

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.

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

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

12. Use only with the 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.

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

14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.

15. This appliance shall not be exposed to dripping or splashing water and
that no object filled with liquid such as vases shall be placed on the
apparatus.

16. Plug this apparatus to the proper wall outlet and make the plug to be
disconnected readily operable.

17. Mains plug is used as disconnected 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.

18. WARNING: To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture.

19. An appliance with a protective earth terminal should be connected to a
mains outlet with a protective earth connection.

20. The apparatus should be disconnected from the mains completely before
speaker wiring. The speaker output should be proper protected from direct
contact and pay attention to speaker connections, terminals and speaker
wiring during normal operation.

PAGE 3

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

Revision 1.0: Jan 2017

Introduction 3

Features & Protection 4

Controls, Connectors and Indicators 5

Block diagram 8

Installation 9

Basic Setup and Operation 12

Tone Generator 14

Priority Control 17

Music Player 18

Bluetooth Audio Streaming 19

Miscellaneous 20

Fault Finding 24

Specifications 25

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

HS SERIES MIXER AMPLIFIER

Congratulations on choosing Australian Monitor for your professional
amplification requirements.

The design of our HS series mixer amplifier 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 optimised to provide a professional tool that exhibits quality,
reliability and longevity.

The HS series mixer amplifiers are 1 unit 1.75” high, 19” wide, rack
mountable units.

Each of the six input channels comprises a balanced and unbalanced
active input, gain adjustment and equaliser. The mixer section features
VCA control, gain adjustment and 3 band equaliser which feeds an
efficient Class D amplifier. Additionally, the mixer amplifier includes an
embedded tone generator, music player and Bluetooth® audio
streaming for a complete mixer amplifier solution.

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.

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HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

FEATURES & PROTECTION FEATURES

FEATURES

•

Class-D amplification

•

4Ω/70V/100V Operation

•

6 Balanced XLR inputs or unbalanced RCA inputs

•

3.5mm front line input socket

•

Bluetooth® 3.0+EDR audio receiver supporting A2DP profile

•

Embedded tone generator and music player with SD card support

•

Priority muting control on Channels 1-3 with level and time release control

•

USB charging support for mobile devices

•

12V phantom power on balanced inputs

•

Line and Record outputs

•

Voltage Controlled Attenuation (VCA)

•

Status, Protect and Signal LED indicators

•

Power factor corrected universal switch mode power supply (HS250)

•

Magnetic cover for customer concealed eq and gain controls

•

Defeatable volume controls to prevent end user tampering

•

1RU height with front rack mount ears

PROTECTION

•

Clip protection

•

Short-circuit protection

•

Overload protection

•

Thermal protection

GLOSSARY

Ter m Meaning

Tone Typically an alarm or alert which bypasses the pre-amplifier master control stage

Music Audio MP3 or WAV music files which are not used as ‘Tones’

MP3 Lossy data compression audio coding format

WAV Waveform audio file format

XLR Audio electrical connector type

RCA Audio electrical connector type

SD card Secure Digital memory card

LED Light Emitting Diode.

VOX Voice operated output

FAT32 32 bit File Allocation Table Format. (This format should be used on the SD card)

Phoenix connector Terminal block connector type. Also known as a Euroblock.

VCA Voltage Controlled Attenuation

Phantom Power Power outputted on the XLR connector to power microphones

DIP switch Dual in-line package switch. Used on the front and rear of the product to select various settings

PAGE 5

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

CONTROLS, CONNECTORS & INDICATORS

FRONT PANEL

The functions of the controls and indicators are as follows:

1

Power Switch

Press the switch to up for power on and down for power off. At start-up
(turn-on), the input to the amplifier is muted for approximately five seconds.

2

Status Indicator

This blue LED will illuminate and indicates that the amplifier is on and
receiving mains power.

It can also flash to indicate status information as shown in the following table:

Flashes Meaning Freqency of

Fast Front panel button press detected Off 75ms=On 75ms-Repeat

Blinking Standby Mode Off 4s-50ms Flash-Repeat

1-Slow Priority mode triggered Off 1s-On 1s-Off 1s-On

1 SD card absent or faulty Off 2s-1 300ms Flash

2 SD card folder error Off 2s-2 300ms Flashes

3 SD card file error Off 2s-3 300ms Flashes

See the Fault Finding section of this manual to fix any errors displayed.

3

Protect Indicator

The following table indicates the meaning of each protection mode:

LED Meaning

Yellow flashing Amplifier temperature warm

Yellow on Amplifier temperature hot

Red flashing Amplifier over temperature*

Red on Amplifier protect

Red/Yellow flashing USB power fault

Red on (Status LED off) Amplifier in Service Mode

See the Fault Finding section of this manual to fix any errors displayed.

* In the advent of a thermal overload, the internal operating temperature

of the amplifier has exceeded a safe level of operation. Please wait for
the amplifier to cool, at which point it will return to normal operation.

4

Channel Signal / Clip Indicator

A green LED will illuminate to show a signal is present on the corresponding
audio input channel. A red LED will illuminate when clipping occurs due to an
excessive input signal. If clipping occurs adjust the gain/trim potentiometer of
the corresponding channel counter-clockwise until the green LED is illuminated.

5

Master Output Meter

The LEDs will illuminate in sequence from -40dB to clip level based on the
input signal level to the amplifier. The red LED will illuminate when clipping
occurs, turn down the master volume to prevent clipping.

NOTE: The amplifier is not damaged by running into clipping, but

speakers may be. To maximise the life of your speakers, try to keep
clipping infrequent.

6

SD Card Connector

Input connector for a full size SD card to be used with the music player
or tone generator. Maximum density support up to 2TB. Consult the
Support of SD cards larger than 32GB section for further details.

NOTE: Format the card to the FAT32 file system. Use

a full size SD card adapter to support mini or micro sized SD cards.

7

3.5mm Line Input Socket

Audio input socket for use with mobile devices or portable equipment.

8

Channel Volume Control

Turn the control clockwise to increase the level of the corresponding channel.

9

Music player controls

Consult the Music Player section of this manual for further details of these controls.

10

Bluetooth®

Consult the Bluetooth® Audio Streaming section of this manual for further
details of these controls.

11

USB Charger

USB charging port for mobile devices. It provides 500mA of charge current at 5V.

12

Master Volume Control

Turn the control clockwise to increase the level of the mixer output.

68 74 12 5

9 10

12311

Front panel

PAGE 6

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

CONTROLS, CONNECTORS & INDICATORS

FRONT PANEL cont.

13

Gain / Trim and Equaliser

Turn the corresponding channels potentiometer clockwise to increase
the gain, bass, mid or treble and counter-clockwise to decrease.

The 12 o’clock position sets each control to its centre position of 0dB.

The GAIN/TRIM has a range of ±12dB.

The equaliser has an adjustable range:

•

Bass 100Hz ±12dB

•

Mid 1600Hz ±12dB

•

Treble 10kHz ±12dB

14

Defeat Volume Control

You can defeat/disable the mixer’s volume controls to prevent end users
interfering with the system volume.

Place the DIP switch in the DOWN position to disable the volume control.

Use the GAIN/TRIM potentiometer to modify the audio level instead of the
volume controls during installation.

WARNING: Disabling the volume controls will pass through

high audio signal levels. Turn down the gain/trim pots to prevent
excessive audio output and then increase to find a suitable
output level.

Front panel, cover removed

14

13

PAGE 7

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

REAR PANEL

1

Mains Input Connector

Your amplifier is fitted with a standard IEC 60320-C14 socket for mains
connection. Use the mains cable supplied to power up the unit.

NOTE: Your unit must always be earthed!

2

XLR MIC/Line Balanced Input, Ch1-3

A standard female XLR balanced socket is provided on each input:

Pin 1 = Signal Ground

Pin 2 = Hot (non-inverting or in phase)

Pin 3 = Cold (inverting or reverse phase)

3

Phoenix MIC/Line Balanced Input, Ch4-6

A balanced male 3-pin (3.81mm) Phoenix type connector is provided
on each input:

Pin 1 is the left-most pin when viewed from the back of product.

Pin 1 = Hot (non-inverting or in phase)

Pin 2 = Cold (inverting or reverse phase)

Pin 3 = Signal Ground

4

Stereo RCA unbalanced input

A standard stereo RCA female socket for each input. This is summed to
mono inside the amplifier.

5

MIC/Line level input selector

Turn both DIP switches DOWN for MIC level input range or UP for line level
input range.

NOTE: Both DIP switches must be up or down. Do NOT have one

switch up and one down.

6

Phantom power

Press the DIP switch DOWN to output 12V phantom power on the
corresponding XLR balanced input connector.

Phantom power is NOT outputted on the RCA connectors.

NOTE: To avoid potentially damaging audio spikes to connected

equipment, turn off the product before enabling phantom power.

7

Record Output

A standard stereo RCA output containing the pre-master mixer stage output
signal – i.e. Pre-Master volume control potentiometer, Pre-Amplifier.

8

Line level output

A balanced male 3-pin (3.81mm) Phoenix type connector output containing
the master mixer stage output signal – i.e. Post-Master volume potentiometer,
Pre-Amplifier.

9

Priority Control

Consult the Priority Control section of this manual for further detail of
these controls.

10

Speaker Outputs

The class D amplifier output features 100V Line, 70V Line or 4 Ohm low
impedance.

NOTE: Only one output type should be used at a time.

11

VCA Control/Master Mute

External Voltage Controlled Attenuation (VCA) /Master mute input.

Consult the Voltage Controlled Attenuation (VCA) section of this manual
for further detail of this control.

12

Standby Input

Connect this signal to ground (GND) to enable standby mode.

Consult the Standby Input section of this manual for further detail of this
control.

13

VOX output

Open collector transistor output to indicate priority mode is active. Connect this
to an external control system.

Consult the VOX Output section of this manual for further detail of this control.

14

Tone/MP3 generator control

Consult the Tone Generator and Binary Input Trigger section of this
manual for further detail of these controls.

CONTROLS, CONNECTORS & INDICATORS

1 10 7 2

1411 9 8 3 4 561213

PAGE 8

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

BLOCK DIAGRAM

CHANNEL STAGE

MIXER STAGE

TONE GENERATOR

MIXER

±12dB

GAIN EQUALISER VCA

MASTER

LEVEL

CONTROL

+

POT DEFEAT

CLASS D

AMPLIFIER

MASTER METER

CH1–6

BLUETOOTH

MUSIC PLAYER

500kΩ

External

Pot

LINE- IN

PRE-AMP

STAGE

RCA Input

XLR Input

12V-PHANTOM

SIGNAL-PRESENCE

GREEN/LED

±12dB

GAIN EQUALISER

CHANNEL

LEVEL

CONTROL

+

POT DEFEAT

PRIORITY
CONTROL

MUTING
(CH1–3)

PAGE 9

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

INSTALLATION

Power Requirements

Power consumption for your model of the HS series mixer amplifier is indicated
on the rear panel for 1/8th output power.

Ensure that your mains voltage is the same as the rear panel mains voltage
marker (+/- 10%).

Mounting

The HS series mixer amplifiers are one rack unit high (1U) and will fit a
standard EIA 19” rack.

Typically, amplifiers may be stacked directly on top of each other with no
need for spacing between units, unless installed in high ambient temperature
environments where a single rack unit space between amplifiers will assist
cooling further.

Cooling

The HS60 and HS120 amplifiers are convection cooled and do not require any
special consideration.

The HS250 amplifier is cooled by axial fans which draw air from the right side
of the amplifier and expel the heated air out the left side of the amplifier. These
amplifiers offer variable speed fans which run at half speed up to full speed
when the internal heatsink temperature increases.

An unrestricted airflow into and out from the amplifier must be provided. Any
restriction of the air flow will cause heat to build up within the unit and possibly
force the unit into its thermal shutdown mode.

If the amplifiers are to be operated in an environment where the airflow is
restricted such as sealed racks, cooling should be supplemented by extra
cooling fans to evacuate the heated air and aid the flow of cool air through
the unit.

Balanced Input Wiring

WARNING: Input signal ground should NOT be used as a safety

ground (earth).

The balanced input to the amplifier is 3-pin configuration and requires all three
pins to be connected. Only high quality twin-core shielded cable should be used.

Pin 1 = Signal Ground

Pin 2 = Hot (non-inverting or in phase)

Pin 3 = Cold (inverting or reverse phase)

When wiring from an unbalanced source you must ensure that pin 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 = Signal Ground

Pin 2 = Hot (non-inverting or in phase)

Pin 3 = Signal Ground

Output Wiring

When wiring to your speakers always use the largest gauge wire your
connector will accept. The longer the speaker lead the greater the losses which
will result in reduced power and less damping at the load 4Ω. We recommend
using a heavy duty, two core flex (four core flex if bi-amping) 10 to 12 gauge
(2mm2 to 2.5mm2 or 50/0.25 or equivalent) as a minimum.

100v Line Cable Diameter and Length

0.75mm² 1.0mm² 1.5mm² 2.5mm² 4.0mm² 6.0mm²

30 Watt 800m 1066m 1600m 2666m 4266m 6400m

60 Watt 400m 533m 800m 1333m 2133m 3200m

120 Watt 200m 266m 400m 666m 1066m 1600m

240 Watt 100m 133m 200m 333m 533m 800m

INSTALLATION continued next page...

PAGE 10

HS SERIES AMPLIFIER INSTALLATION AND OPERATION MANUAL

INSTALLATION (CONT)

Speaker Output Setup

The amplifier output has a 6 pin output screw terminal with a pre-fitted link between the 4Ohm and the high impedance output. Follow the instructions below to
connect the amplifier to your speaker/s for each output mode.

4Ω or 8Ω operation

•

Remove the link between 4Ω and the OT-IN

•

Connect your speaker to the LOW IMPEDANCE OUTPUT ‘C’ and ‘4Ω’ connections

70V

•

Fit the link between 4Ω and the OT-IN. (This connects the amplifier output
to the input of the 70/100V transformer)

•

Connect your speaker to the HIGH IMPEDANCE OUTPUT ‘C’ and ‘70V’ connections

100V

•

Fit the link between 4Ω and the OT-IN. (This connects the amplifier output
to the input of the 70/100V transformer)

•

Connect your speaker to the HIGH IMPEDANCE OUTPUT ‘C’ and ‘100V’ connections