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R E A R PA N E L

PAG E 5

A M I S 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 UA L

CH 1-6

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.

REC OUTPUT

The REC output is on unbalanced RCA connectors. The
output level is 300mV 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.

LINE OUTPUT

The LINE output is on a balanced XLR connector.
The output level is 2V 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.

AMP OUT

The speaker connections are on the 12 pole terminal strip.
There is a low impedance output (OHM) and a distributed
line voltage output (LINE).
25V/70V out is available on 115V models.
70V/100V out is available on 230V/240V models.
8ohm out is available on the AMIS60 and AMIS120.
4ohm out is available on the AMIS120.

MINIMUM IMPEDANCE

Distributed Line Output

AMIS60

AMIS120

25V (115V version)

10.4ohm

5.2ohm

100V (230/240V version)

333ohm

166ohm

70V (230/240 & 115V versions) 166ohm

83ohm

Low Impedance Output
4 ohm (230/240 & 115V versions) N/A

4ohm

8 ohm (230/240 & 115V versions) 8ohm

8ohm

NOTE: Only connect one output - either

Distributed Line or Low Impedance

per channel. Do not connect the 8ohm, 4ohm

and 100V at the same time.

The output strip comes fitted with a touch-proof cover held
in place by two M3 machine screws with flat and spring
washers.

VCA CONTROL

These two terminals provide connection for an external
potentiometer (500k log) which is available mounted on
a wall panel from Australian Monitor (RC1). When the
potentiometer is connected it allows for remote control
of the master level. The external pot is governed by the
master level of the amplifier allowing the installer to set
the volume and then lock the amplifier in a rack, leaving
the user with just a master volume control that cannot go
beyond the level set on the front panel master control.
The terminals can also be used as a system mute by
shorting the two contacts together (by a relay or switch
for example).

VOX RELAY

These terminals provide connection for the priority relay
output. The relay outputs are C (Common), NO (Normally
Open) and NC (Normally Closed). These are the states of
the relay when the amplifier is off (mains or dc). When
the unit is switched on the relay activates. The relay
deactivates when signal is present at any of the priority
inputs regardless of the front panel channel volumes. This
would normally be inputs 1 and 2 however these channels
can be removed from the priority bus via internal links
(see “Functional Notes’). The unit is shipped from the
factory with inputs 1 and 2 having priority so assuming
that this has not been changed, signal at any of these
inputs will deactivate the VOX relay circuit. The relay also
deactivates when a tone sound is triggered

The NO or NC selection provides the installer with the
option of the relay either opening or closing a contact.
This feature is normally used in conjunction with relay
override attenuators (volume controls). In this application,
the relay output could trigger an accessory power supply
which in turn bypasses the remote attenuators. The result
is that priority inputs or alarm tones will always be heard
irrespective of the attenuator setting. The relay contacts
are rated at 3 amps at 125VAC/30VDC.The relay can be
disabled via an internal link (see “Internal Settings”).

TONES MODULE

These terminals provide connection for triggering the
in built tone module. The four tones can be activated
individually by shorting the named terminal to COM. When
any tone is activated, all inputs (except for inputs 1 and
2) will automatically mute. The level of the tones can by
adjusted internally (see “Internal Adjustments”). The pot
adjusts the level for all 4 tones.

Tones available on the AMIS60 and AMIS120 are:
- Evacuation Tone
- Alert Tone
- Bell Tone
- Pre-Announce Chime

TELEPHONE INPUT (only on 115V models)

The 600 ohm transformer balanced Telephone Input is
paralleled with input 2. If telephone paging is required,
the XLR & dual RCA inputs should not be used as these
inputs will be summed with the Telephone Input into
channel 2. The front panel level control will set the gain
for the Telephone Input.
The Telephone input is shipped with a jumper lead
connected to the input terminals; this must be discarded
if the telephone input is to be used.

24VDC POWER IN

These terminals provide connection for an external 24V
emergency power system and are not switched by the
front panel power switch. The 24VDC in does NOT provide
any trickle charge facility. The binding posts can
accommodate wire of up to 1.5mm in diameter. The
maximum current draw at 24VDC is 9A.

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.

AMIS60

AMIS120

230V/240V model

3.15A

115V model

3.15A

IMPORTANT: Always replace the fuse with one

of the same value and type.

NOTE: Always disconnect power to the

amplifier before replacing fuses.