Hệ thống hội thảo DSPPA của Italia, sản xuất tại Trung Quốc Bao gồm micro chủ tịch, micro đại biểu và bộ điều khiển trung tâm
Digital Conference System Centre MP9866

There are three groups of 8 P-DIN sockets used for multiple system links. Each channel can control 35 sets of microphone.
The panel is provided with digital display and multiple operation mode indicators. The operating state is clear at a glance.
There are three function setup keys: Mode, Set and Enter.
It supports multiple conference modes: Free speech mode, alternation mode and limit speech mode.
A.Free speech mode: All present units can turn on key to speech, and the key will be turned off after the speech.
B.First-In-First-Out mode: It is able to set up 1-19 present units to have alternate overriding speech function.
C.Limit mode: It is able to set up 1-19 present units to have conditional speech function.
a) Optional chairman mode: It is able to select Chairman Only and Common mode. b)Optional chairman priority music: It is able to select Yes or No.
Telephone conference input terminal: It is able to select Yes or No.
Built-in feedback restraint circuit: It is provided with treble/bass adjustment circuit for adjusting the system sound quality independently, and the microphone volume adjustment for making the sound quality clearer and louder.
It is provided with balanced output port, left/right channel output port, unbalanced output port, etc. to adapt various connections.
Chairman Microphone CM60

Priority speech function of interrupting speech in the other microphones
Providing priority music chime.
Free from any restrictions in the system, and can be placed at any location in the system circuit.
With Chairman Only mode.
Fully digital-control design.
Powered by system Control Unit. The output voltage is a safety voltage, 18V. The unit is provided with a 1.5m 8P connection line, used for “cross" type line connection.
The condenser microphone with a replaceable windproof cover.
Elongated microphone neck available.
Microphone head with a red ring indicator displaying the speech status.
With a speech switch key and indicator on the front panel of base.
With voice control power-off function: The microphone will be shut down automatically 30 seconds after the speech.
Delegate Microphone CM61
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Fully digital-control design.
Powered by system Control Unit. The output voltage is a safety voltage, 18V.
The unit is provided with a 1.5m 8P connection line, used for “cross" type line connection.
The condenser microphone with a replaceable windproof cover.
Elongated microphone neck available.
Microphone head with a red ring indicator displaying the speech status.
With a speech switch key and indicator on the front panel of base.
With voice control power-off function: The microphone will be shut down automatically 30 seconds after the speech.

