The AMIS60 is a 4 channel, 60 watt mixer amplifier suitable for rack or
desk mounting. The amplifier is a self contained compact unit of solid steel
The AMIS60 has four universal input channels with separate level
controls. Each channel will accept balanced or unbalanced microphone,
line and auxiliary inputs. The unit has industry standard XLR microphone
sockets and dual RCA auxiliary sockets for each channel. An electronicallybalanced 600 ohm telephone input for paging is also provided. An insert
point is also featured on the rear panel for those applications where an
additional EQ or feedback eliminator may be required.
The AMIS60 features 70 volt and 8 ohm isolated transformer outputs,
plus a tape recorder output by means of dual RCA sockets. A balanced
700mV XLR output is also provided to feed up to 6 power amplifiers. A vox
triggered relay output is also available on the rear panel for activation of
external devices from the vox muting circuit. In most cases this would be
used as a muting bypass relay, which when used with the appropriate
external attenuator will maintain paging levels irrespective of the
attenuator setting.
VCA Control
The master volume can be controlled remotely. External VCA control
would normally be via a pot connected to a two wire rear panel barrier
Speaker Zone Selector
A six position push button speaker zone selector with overriding “all call”
is located on the front panel. Each of the six zone selectors switch the 70
volt speaker line output to 6 separate speaker zones. The “all call”
selector overrides all 6 zones regardless of their on/off condition and
places the 70 volt output to all 6 zones.
Tone Generator
The AMIS60 comes standard with an in-built four tone generator module.
Tones include Bell, Pre-announce Chime, Alert Tone and Evacuate Tone.
Any of these tones may be activated from a simple contact closure
connected to the rear panel of the amplifier. A Pre-announce defeat
switch is located on the front panel.
VOX muting is standard on the AMIS60. A mic or line signal on channels 1
or 2 will mute channels 3 and 4. The muting function can be disabled via
an internal link.
Power Output
60 Watts RMS
Maximum Load
80 Ohms @ 70 Volts
Power Bandwidth
60Hz - 17kHz (- 3dB)
Frequency Response
60Hz - 23kHz (- 3dB)
Total Harmonic Distortion
0.5% @ 1kHz
rated power
Signal To Noise Ratio
-74dB all controls center
Tone Controls
Bass @ 100Hz
Boost +12dB Cut -12dB
Treble @ 10kHz
Boost +9dB Cut -9dB
Input Sensitivity
Mics: 1mV @ 200 Ohms
Aux: 150mV @ 47K Ohms
Speaker: 70 Volts, 4 & 8 Ohm
Tape: 350mV @10KOhms
Line: Balanced 700mV
Phantom Power
18 V DC Mic ins- Switch
4 input channel gain
1 Bass control
1 Treble control
1 Master gain control
6 Speaker zone selector
1 Speaker “all call” selector
1 Pre-announce defeat switch
1 Phantom Power switch
Tone Generators
Four tone generator with Bell,
Pre-Announce, Alert and Evac
Soft limiter for overload
protection, plus AC and
DC fuses.
Channels 1 and 2 will
mute channels 3 and 4
Power “on” LED
Power Source
120VAC 60Hz
3 pin IEC connector; 24VDC
Power Consumption
125 Watts
3.5" H x 19" W x 13" D
22 lbs.
Phantom Power
Phantom Power (18V DC) is available from all mic inputs. A rear panel
phantom power on/off switch is also provided.
Rack Mounting
Internal current limiting protects the amplifier from both overload and
overdrive conditions. Australian Monitor Installation Series amplifiers
feature a protection network that provides greater stability and
performance. Our amplifiers are recognised worldwide for their reliability
and this is due to the extensive levels of current limiting which protect the
amplifiers from both overload and overdrive conditions.
Architectural and Engineering Specifications
The mixer amplifier shall have four universal input channels, each comprising of a
balanced microphone input with XLR female sockets and an auxiliary input using dual
RCA sockets. The 70 volt line speaker outputs should be able to be switched via a six
position selector with “all call”. A balanced XLR output to drive additional power
amplifiers shall also be provided. The amplifier master section shall include one
master gain control, two EQ controls, one with 12dB of cut and boost at 100Hz and the
other with 9dB of cut and boost at 10kHz. Speaker outputs shall be transformer
isolated at 70 volt and 8 ohms. The amplifier must be capable of delivering 60 watts
RMS into an 80 ohm inductive load, with less than 0.5% distortion measured at 1kHz
and with system hum and noise less than -74dB. The amplifier shall be an Australian
Monitor Installation Series model AMIS60.
Australian Monitor
Corporate Headquarters
is located in Sydney,
Australia. The
organization has more
than 20 years experience
in the design and
manufacture of audio
amplifiers and
associated products.
They are a dynamic
corporation, priding
themselves on excellent
customer service, better
features and lower priced
products for Sound
Contractors and Audio
Visual Integrators