REC Conference system

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:
– input MICROPHONE
– input LINE

1,5 / 0,75
80 / 40

Minimal EMF of supply, max
– input MICROPHONE, mV
– input LINE, V

0,5 / 1,0
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:
– input MICROPHONE
– input LINE

1,5 / 0,75
80 / 40 

Minimal EMF of supply, max
– input MICROPHONE, mV
– input LINE, V

0,5 / 1,0
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.