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 Phono RCA sockets. The 100 volt line speaker outputs should be able to be switched via
a 6 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 100 volt, 70 Volt and 8 ohms.
The amplifier must be capable of delivering 60 watts RMS into an 160 ohm inductive load, with less than 0.5% distortion
measured at 1 kHz and with system hum and noise less than -74dB.
The amplifier shall be an Audio Telex model ACM60, manufactured in Australia.
Power Output
60 watts RMS
Maximum Load
160 Ohms @ 100 Volts
Power Bandwidth
60Hz-15kHz < O.5% THD
Frequency Response
60Hz-15kHz (+/- 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 Phono aux sockets.
Input Sensitivity
Mic: 1 mV @ 200 Ohms
Aux 1-3: 75 mV @ 47K ohms
Aux 4: 300mV @ 47K ohms
Outputs
Speaker: 100, 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)
ACM60 Specifications
Speaker Zone Selection
Speaker zone selector, switches 100V 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, Pr-announce defeat switch,
Phantom Power on/off switch (on rear panel)
Indicators
Power "on" LED
Power Source
AC 240v-60Hz, 110v-50Hz (special) 3 pin IEC connector
Power consumption
125 watts
Protection
Soft limiter for overload and overdrive protection, plus AC
and DC fuses
Dimensions / Weight
88mm H x 480mm W x 330mm D (Chassis Dimensions
only), 10kg
Rack Mounting
Optional ACMRK Rack mount kit (2RU)
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
Audio Telex Communications Pty Ltd
www.audiotelex.com
Sydney (02) 9647 1411, Melbourne (03) 9890 7477, Brisbane (07) 3852 1312, Perth (08) 9228 4222
Auckland (09) 415 9426, Adelaide (08) 8234 9444, Hobart (03) 6228 6373
A.C.N: 001 345 482