Australian Monitor HA6 User Manual

H A 6

6 CHANNEL STEREO HEADPHONE AMPLIFIER

INSTA L L ATION AND OPERAT I O N M A N UAL

IM PO RTAN T SA FE TY I NF ORM AT IO 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.

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, 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
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 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.

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 & 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.

THIS SAFETY INFORMATION IS OF A GENERAL NATURE AND MAY BE SUPERSEDED BY INSTRUCTIONS CONTAINED WITHIN THIS MANUAL

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.

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

The AM Pro series HA6 is a 1RU, high quality, stereo in to six stereo out
professional headphone amplifier. The HA6 features either balanced XLR, dual
RCA or stereo 6.35mm jack inputs and six 6.35mm stereo headphone outputs
each with individual front panel level controls.

Thank you for purchasing the Australian Monitor HA6.

INTRODUCT IO N 3

FRONT & R EA R PANEL 4

INSTA L L AT IO N & TROUBLESHOOT IN G 5

DIMENSION S 6

SPECIFICATIONS 7

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.

Caution:

WARNING!

TO REDUCE THE RISK OF FIRE OR ELECTRIC HOCK

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

A M I S H A 6 I N STA LLAT I O N & O P E R AT I ON M A N U A L

AUS, EUR, USA
Rev A 28/03/07

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

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

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.

PAG E 3

F R O N T & R E A R PA N E L

1 2 3

1 2 3

LEVEL

This pot controls the level of the output signal of
the corresponding channel.

OUTPUT

A 6.35mm stereo socket provides connection for a
headphone. The level is controlled by the
corresponding channel LEVEL pot.

POWER ON LED

This indicates there is power to the unit.

REAR PANEL

1 2

STEREO INPUT

There are 3 parallel inputs for connecting
sources to.
XLR input - These are balanced line level inputs for
left and right.
RCA input - These are unbalanced line level inputs
for left and right.

6.35mm Jack - This is for a TRS 6.35mm (1/4”)
plug. Left is on the tip and right is on the sleeve.

VOLTAGE SELECT SWITCH

This switch is used to select the mains voltage for
your region.

the correct position for your region
before turning on the device. Operating
this equipment with the wrong setting
may result in damage to the unit.

amplifier before operating this switch.

WARNING: Check that this switch is in

IMPORTANT: Disconnect power to the

123

3

IEC MAINS INPUT SOCKET

This is a standard IEC 3 pin socket. It accepts a
standard IEC mains cable, provided. The fuse draw
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:
230V/240V model: 63mA
115V model: 125mA

IMPORTANT: Always replace the fuse

with one of the same value and type.

NOTE: Always disconnect power to the

HA6 before replacing fuses.

PAG E 4

A M I S H A 6 I N STA LLAT I O N & O P E R AT I ON M A N U A L

I N S TA L L AT IO N & TR OU BL ES HO OT I N G

INPUT CONNECTIONS

For wiring balanced in, pin 2 is hot. Balanced input wiring (shielded
pair cable) is recommended.

Unbalanced RCA wiring should be keep as short as possible. Typically
less than 3m.

TROUBLESH OO TI N G GUIDE

TROUBLE LIKELY CAUSE REMEDY

Power LED not on Power not reaching unit Check mains connection
Check mains fuse

Distorted sound Output is being over driven Reduce output volume

No sound but amp is on Volume turned down Check volume controls

A M I S H A 6 I N STA LLAT I O N & O P E R AT I ON M A N U A L

PAG E 5

D I M E N S I O N S

PAG E 6

A M I S H A 6 I N STA LLAT I O N & O P E R AT I ON M A N U A L

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

FREQUENCY RESPONSE 20Hz - 20kHz (+0,-3dB)

TOTAL HARMONIC DISTORTION < 0.1% @ 1kHz

SIGNAL TO NOISE RATIO > 90dB (all pots at centre position)

CROSSTALK >70dB

SENSITIVITY (TRIM IN CENTRE 0dB) Line Sens 0.775V, 0dBu Imp >100k

RCA 200mV, -12dBu Imp 30kohm
TRS 0.775V, 0dBu Imp 10k

MAX LEVEL IN XLR mic -9dBu line >30dBu

RCA >30dBu
TRS >30dBu

MAX LEVEL OUT +21dBu

OUTPUTS

NOMINAL LEVEL 0dBu into 1kohm
IMP 100ohm

POWER INPUT AC: 230V/50Hz or 115V/60Hz, 3 pin IEC320-C14 connector

POWER CONSUMPTION (MAX) 7.5VA

FUSES

MAINS (115V) 125mA
MAINS (230V) 63mA

DIMENSIONS H X W X D 44mm x 482mm x 182mm (1.75“x19”x7.2”)

SHIPPING DIMENSIONS 90mm x 505mm x 270mm (3.5“x19.9”x10.6”)

WEIGHT Net 2.8kg (6.2lb)

Shipping 3.8kg (8.4lb)

A M I S H A 6 I N STA LLAT I O N & O P E R AT I ON M A N U A L

PAG E 7

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)

1 Clyde Street

Silverwater

NSW 2128

Private Bag 149

Silverwater NSW 1811

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

MELBOU R N E

(VIC & TAS SALES)

22/277

Middleborough Road

Box Hill VIC 3128

PO Box 151 Blackburn

South VIC 3130

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

BRISBA N E

(QLD SALES)

42 Commercial Road

Fortitude Valley

QLD 4006

PO Box 871 Fortitude

Valley QLD 4006

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

EUROPE / ASIA / MI DDLE 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

INT E R NATIONA L SALES

1 Clyde Street Silverwater NSW 2128 Australia

Private Bag 149 Silverwater NSW 1811

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

ADELAI D E

(SA & NT SALES)

31 Walsh Street

Thebarton

SA 5031

PO Box 157

Hindmarsh SA 5007

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

PERT H

(WA SALES)

3/11 Howe Street

Osborne Park WA 6017

PO Box 1281

Osborne Park BC

WA 6916

Phone: [phone]

Fax: [phone]

Email:

[e-mail]

AUC K L A N D

(NZ SALES)

9C Piermark Drive

Albany 0752

New Zealand

PO Box 300-512

Albany 0752

Phone: [phone]

Fax: [phone]

Email:

[e-mail]