AUSTRALIAN MONITOR AMIS60 User manual

60W, 4 Channel Mixer Amplifier
AMIS60
Description
The AMIS60 is a 4 channel, 60 watt mixer amplifier suitable for rack or desk mounting. The ampli-
fier is a self contained compact unit of solid steel construction.
Inputs
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 electronically-balanced
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 exterminator may be required.
Outputs
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 irre-
spective 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 strip.
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 sim-
ple contact closure connected to the rear panel of the amplifier. A Pre-announce defeat switch is
located on the front panel.
Muting
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.
Phantom Power
Phantom Power (18V DC) is available from all mic inputs. A rear panel phantom power on/off switch
is also provided.
Protection
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 recog-
nised worldwide for their reliability and this is due to the extensive levels of
current limiting which protect the amplifiers from both overload and over-
drive conditions.

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% @ 1 KHz rated power
Signal To Noise Ratio -74dB with all controls at their centre position
Tone Controls Bass @ 100Hz: Boost +12dB Cut -12dB; Treble @ 10kHz: Boost +9dB Cut -9dB
Inputs Four mic/aux universal inputs with XLR female mic sockets and dual RCA aux sockets;
600 ohm transformer balanced telephone paging input
Input Sensitivity Mic: 1mV @ 200 Ohms; Aux: 150mV @ 47K Ohms
Outputs Speaker: 70 Volts, 8 Ohms; Tape: 350mV @ 10K Ohms; Line: Balanced 700mV
Phantom Power 18 Volts DC on all Mic inputs (rear panel on/off switch)
Speaker Zone Selection Speaker zone selector, switches line output to 6 separate zones.
An ”all call“ switch overrides alI zones.
Controls 4 Input channel gain controls, 1 Bass control, 1 Treble control,
1 Master gain control, 6 Speaker zone selector, 1 Speaker ”all call“ selector,
Pre-announce defeat switch, Phantom Power on/off switch (on rear panel)
Indicators Power ”on“ LED
Power Source 120VAC 60Hz 3 pin IEC connector; 24VDC
Power Consumption 125 Watts
Protection Soft limiter for overload and overdrive protection, plus AC and DC fuses
Dimensions/Weight 3.5" H x 19" W x 13" D (Chassis Dimensions only). 22lb
Rack Mounting Standard
Tone Generators Built-in four tone generator module.
Includes Bell, Pre-Announce, Alert and Evac tones
Muting Built-in VOX muting. Channels 1 and 2 will mute channels 3 and 4.
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 addi-
tional 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 iso-
lated at 70 volt and 8 ohms. The amplifier must be capable of delivering 60 watts RMS into an 80 ohm induc-
tive 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.
UL APPROVED
PO Box 3126, Lynnwood, WA 98046 • Voice: 425-673-5175 • Fax: [phone]
• Website: www.australianmonitor.com • Email: [e-mail]
AUSTRALIAN MONITOR AUDIO INC.