A M P L IFIE R 2

A M P L IFIE R 1

 

 

 

 

 

 

 

INPUT AM P 2

 

INPUT AM P 1

LEVEL 2

 

LEVEL 1

 

X LR

1 =

Ground

2 =

+

Signal

3 =

-

Signal

ENGIN EERED BY AUD IO TELEX C OMM UN IC ATIO N S PTY LTD SYDN EY AUSTRALIA

Rear Panel Features

AC Power Inlet

The 3 pin IEC power inlet is located on the bottom left of the rear panel and accepts a standard mains power lead fitted with an IEC connector. Before plugging in a power lead, please check the rear panel of the amplifier to ensure that the voltage label shows the correct AC operating voltage for your part of the world.

The inlet is equipped with an in-built AC fuse holder fitted with a 6 Amp slow blow fuse plus a spare fuse. Please ensure that the mains power cord is disconnected before attempting to check or replace this fuse. Power consumption is 400 watts (max).

Speaker Output Terminal Strip

Located on the top left of the rear panel are the speaker output terminal strips. A terminal strip is provided for each of the two amplifiers. Reading from left to right, the connections per terminal strip are:

COM Common or “-” for low impedance speaker loads (4 or 8 ohms).

4The “+” for 4 ohm speaker loads (use with common)

8The “+” for 8 ohm speaker loads (use with common)

COM Common or “-” for 70v or 100v speaker loads (maximum load of 80 ohms at 100v)

70The “+” for 70v line speaker loads (use with common)

100The “+” for 100v line speaker loads (use with common)

Please ensure that the correct “Common” is used. Low impedance and 70/100v loads can be used simultaneously but please pay careful attention to the overall speaker load. When used individually, the low impedance load should be 4 ohms or higher while the 100v line load should not fall below 80 ohms per amplifier. When both low impedance and 70/ 100v outputs are used simultaneously on the one amplifier, ensure that neither output is loaded to maximum.

Level Control

Located next to the XLR input/output is a recessed screwdriver adjustable level control. One is provided per amplifier channel. The level control is an input attenuation control normally used to match the amplifier to a wide variety of input signals. In essence, the amplifier is designed to receive a 700mv input signal however the level control can be used to increase the level for lower signals or decrease the level for higher input signals. In normal use, the level control is used as a ‘set and forget’ master level control for the amplifier.

XLR Audio Input and Parallel Output

The ACM1202P includes both male and female 3 pin XLR connectors per channel. While the female is normally used as the input to the amplifier, both XLR’s are connected in parallel so either will work. When signal is connected to one XLR, the other XLR becomes a line level output allowing the input signal to be distributed (split) to other amplifiers. In some projects, the same input may be looped through to multiple amplifiers using this method. Up to 6 amplifiers can be looped together without any noticeable loss in level. A distribution amplifier should be used when more than 6 amplifiers need to be looped.

The XLR’s are wired as follows: Pin 1: Shield. Pin 2: Hot, +, Positive. Pin 3: Cold, -, Negative

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Telex ACM1202P manual Rear Panel Features, AC Power Inlet, Speaker Output Terminal Strip, Level Control
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ACM1202P specifications

The Telex ACM1202P is a state-of-the-art intercom system designed to enhance communication in various professional environments, including broadcast studios, live events, and production facilities. This intercom system stands out due to its robust features, advanced technologies, and user-friendly characteristics that cater to the needs of audio professionals.

One of the main features of the ACM1202P is its dual-channel capability, allowing seamless communication across two independent channels. This is particularly useful in settings where different teams or departments require discrete communications without interference. The intuitive user interface makes it easy for operators to switch between channels, ensuring that they stay connected effectively and efficiently.

The ACM1202P utilizes digital signal processing technology, which enhances audio clarity and minimizes latency. This technology ensures that conversations are crystal clear, even in high-noise environments typically found in live production scenarios. Additionally, the unit is equipped with advanced echo cancellation, which eliminates feedback that can disrupt communication.

Another significant characteristic of the ACM1202P is its portability. The system is lightweight and compact, making it easy for users to transport it from one location to another. This feature is especially beneficial for mobile production teams that require reliable intercom communication on the go. The integrated rechargeable batteries provide extended operation time, allowing for uninterrupted communication during long events.

The ACMP1202P also supports multiple connectivity options, including standard XLR connections as well as wireless capabilities. This versatility allows users to integrate the system into various existing setups without the need for extensive modifications.

In terms of audio quality, the ACM1202P has a wide frequency response range and low noise floor, making it suitable for professional audio applications. It also features adjustable gain control, enabling users to tailor the audio levels to their specific environment.

In conclusion, the Telex ACM1202P represents a blend of innovative technologies and practical features aimed at enhancing communication in demanding audio environments. With its dual-channel operation, advanced processing capabilities, portability, and excellent audio quality, it is a valuable tool for any audio professional seeking reliable intercom solutions.
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