REC Conference system
Audio conference is a complex of equipment that makes possible to conduct collective conference meetings, seminars, trainings and discussions very conveniently and effectively.
Standard conference equipment set consists of a central unit, chairman console and delegate consoles. The main objectives of this conference are to amplify the speaker's speech and also regulate and manage a discussion through a variety of operation modes.
The product line of microphone consoles “REC” consists of three models: the PM, PMP and PMU. All these models are used in combination of sounding systems for “round table” meetings and conferences as the transmission, receiving and announcement playing equipment with power amplifiers SM 100 or SM 160 of series "Gong", produced by "REC".
PM Microphone Speaker Console
Microphone console PM can work in two modes – transmission and waiting.
The main technical characteristics
Parameter name |
Characteristics |
Microphone directivity |
Cardioid |
Sensitivity, mV/Pa, min |
5 |
Nominal power of a loudspeaker, W, min |
- |
Frequency range, Hz |
from 63 to12500 |
Signal/noise ratio, dB, min |
40 |
Maximum permissible length of the connecting line’s cables, m |
15 |
Total dimensions, mm, max |
114х168х420* |
Weight, kg, max |
0,7 |
Climatic modification |
UHL 4.2 |
PMP Chairman Microphone Console
Microphone console PMP can be used in 3 working modes - "receiving", "transmission" and "priority".
The main technical characteristics:
Parameter name |
Characteristics |
Microphone directivity |
Cardioid |
Sensitivity, mV/Pa, min |
5 |
Nominal power of a loudspeaker, W, min |
1 |
Frequency range, Hz |
from 63 to12500 |
Signal/noise ratio, dB, min |
40 |
Maximum permissible length of the connecting cables of line , m |
52 |
Total dimensions, mm, max |
114х168х420* |
Weight, kg, max |
0,8 |
Climatic modification |
UHL 4.2 |
PMU Delegate Microphone Console
Microphone console PMU can be used in 2 working modes - "receiving", "transmission".
The main technical characteristics:
Parameter name |
Characteristics |
Microphone directivity |
Cardioid |
Sensitivity, mV/Pa, min |
5 |
Nominal power of a loudspeaker, W, min |
1 |
Frequency range, Hz |
from 63 to12500 |
Signal/noise ratio, dB, min |
40 |
Maximum permissible length of the connecting cables of line , m |
52 |
Total dimensions, mm, max |
114х168х420* |
Weight, kg, max |
0,8 |
Climatic modification |
UHL 4.2 |
Organization of the Public Address Systems and local radiobroadcasting and also work as a system block of a conference system are provided with amplifiers SM100 and SM160
SM 100 PA amplifier
Functional features:
- three universal inputs;
- remote control input of the conferencing system;
- a three-tier priority system inputs set by the user;
- faders for each input;
- tone controls for low and high frequencies;
- the possibility of switching on sound processors in the channel of low-frequency signal;
- built-in tone signal generators "Bim-Bom" and "Siren”;
- built-in safety systems of short circuit and overloads on an output;
- output signal about standing condition;
- switch off the body from the common wire circuit.
The main technical characteristics
Parameter name |
Characteristics |
Output voltage rating, V |
30; 120 |
Output power limited by distortions, W, min |
100 |
Input impedance, kOhm, min: |
1,5 / 0,75 |
Minimal EMF of supply, max |
0,5 / 1,0 |
Output voltage LINE OUTPUT, V, min |
1 |
Effective frequency range with flatness 2,5 dB, Hz, not narrow |
50…16000 |
The limits of the tone control at the low frequency (100 Hz) and high frequency (10 kHz) range, dB, min |
±12 |
Total harmonic distortion, %, max |
1,5 |
Signal/noise ratio, dB, min |
65 |
Power input, VA, max |
190 |
Total dimensions, mm, max |
483х89х400 |
Weight, kg, max |
12,8 |
Notation – The values in the numerator correspond to the symmetrical, the denominator – the unsymmetrical powering of a supply. |
SM 160 PA amplifier
Functional features:
- three universal inputs
- remote control input of the conferencing system
- a three-tier priority system inputs set by the user
- faders for each input
- tone controls for low and high frequencies
- the possibility of switching on sound processors in the channel of low-frequency signal
- built-in tone signal generators "Bim-Bom" and "Siren”
- built-in safety systems of short circuit and overloads on an output
- output signal about standing condition
- switch off the body from the common wire circuit
The main technical characteristics
Parameter name |
Characteristics |
Output voltage rating, V |
30; 120 |
Output power limited by distortions, W, min |
160 |
Input impedance, kOhm, min: |
1,5 / 0,75 |
Minimal EMF of supply, max |
0,5 / 1,0 |
Output voltage LINE OUTPUT, V, min |
1 |
Effective frequency range with flatness 2,5 dB, Hz, not narrow |
50...16000 |
The limits of the tone control at the low frequency (100 Hz) and high frequency (10 kHz) range, dB, min |
±12 |
Total harmonic distortion, %, max |
1,5 |
Signal/noise ratio, dB, min |
65 |
Power input, VA, max |
300 |
Total dimensions, mm, max |
483х89х400 |
Weight, kg, max |
13,5 |
Notation – The values in the numerator correspond to the symmetrical, the denominator – the unsymmetrical powering of a supply |
It can be used maximum 13 delegates +1 chairman in the system. If you need increase the number of delegates you must connect the second central block by connecting it to the first one. It is also recommended to install the feedback suppressor (zero drive).
Wiring Diagram of the Analog Conferencing System
It is also possible to connect a system block amplifier to high-quality sound columns CS-10T or CS-8T to broadcast announcements and sound programs in acoustically complex rooms.
PC is connected auxiliary to a conference system to playback background sounding.