AUSTRALIAN MONITOR AMIS120 Series Bedienungsanleitung

120W, 4 Channel Mixer Amplifier

AMIS120

Description

The AMIS120 is a 4 channel, 120 watt mixer amplifier suitable for rack or desk mounting. The ampli-

fier is a self contained compact unit of solid steel construction.

Inputs

The AMIS120 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 electroni-

cally-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 AMIS120 features 70 volt, 4 & 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 six power amplifiers. A vox triggered relay output is also available on the rear panel for activa-

tion 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 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 six 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 six zones.

Tone Generator

The AMIS120 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.

Muting

VOX muting is standard on the AMIS120. 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 recognised worldwide for their

reliability and this is due to the extensive levels of current limiting which pro-

tect the amplifiers from both overload and overdrive conditions.

Power Output 120 Watts RMS

Maximum Load 40 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 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 Mics: 1mV @ 200 Ohms; Aux: 150mV @ 47K Ohms

Outputs Speaker: 70 Volts, 4 & 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 70V line output to 6 separate zones.

An ”all call“ switch overrides all 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 switch (on rear panel)

Indicators Power ”on” LED

Power Source 120VAC 60Hz 3 pin IEC connector; 24VDC

Power Consumption 250 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). 26.5lb

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 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 and 10kHz speaker outputs shall be transformer iso-

lated at 70 volt, 4 & 8 ohms. The amplifier must be capable of delivering 120 watts RMS into an 40 inductive

ohm 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 AMIS120.

UL APPROVED

PO Box 3126, Lynnwood, WA 98046 • Voice: 425-673-5175 • Fax: 425-673-7825

• Website: www.australianmonitor.com • Email: sales@australianmonitor.com

AUSTRALIAN MONITOR AUDIO INC.

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