D7155

DSPPA D7155 - chairman's microphone console with voting function for D711 conference system

DSPPA D7155 is a professional chairman's microphone console designed to work with the DSPPA D711 digital conference system. The device integrates discussion, participant registration, voting, evaluation, messaging, and service request functions, providing comprehensive management of the conference proceedings from the chairman's position.

The console is equipped with a built-in electret condenser microphone with a cardioid pattern and a 4-inch touch screen, allowing for intuitive operation and real-time status monitoring of the system. With high resistance to interference from mobile phones, automatic gain control (AGC), and 12-band EQ, the device ensures clear and stable voice transmission during meetings.

The D7155 model offers the chairman's priority function, the ability to initiate votes, and approve participants' requests to speak. The device can operate anywhere in the system, without restrictions on the chairman's microphone activity, ensuring full control over the meeting proceedings.

Functionality

• integration of discussion, participant registration, voting, evaluation, and messaging functions
• handling of service requests during the conference
• chairman's function with priority management of the conference
• initiating votes from the chairman's console
• approving participants' requests to speak
• full control over the conference proceedings
• automatic switching to a backup unit in case of main system failure
• monitoring sound through headphones
• selection of translation channels via headphone jack
• independent adjustment of microphone and headphone listening levels
• 12-band EQ
• microphone noise reduction
• automatic gain control (AGC)
• automatic tracking of conference cameras in cooperation with the central unit or control software
• built-in functions for central control of external devices such as lighting, air conditioning, curtains, projectors, and power systems
• self-diagnostic function in cooperation with the central unit of the system
• serial connection support between consoles using RJ45 connectors

Features

• chairman's microphone console for D711 conference system
• desktop design
• electret condenser microphone with cardioid pattern
• microphone sensitivity: -42 ±2dBV/Pa
• microphone frequency response: 50Hz-20kHz
• maximum SPL level: 125dB
• 4-inch capacitive touch screen
• two-color LED signaling ring red/green
• unique identifier for each conference unit
• 3 user interface themes
• support for two interface languages: Chinese and English
• 3.5mm headphone jack
• headphone output: 9dBu, 8-32Ω
• signal-to-noise ratio: >75dB
• total harmonic distortion: <0.3%
• power supply from the central unit +48V or via PoE +48V
• RJ45 network interface
• power consumption in standby: <3W
• maximum power consumption: <4W
• dimensions: 142x139x65mm
• weight: 0.95kg
• dedicated RJ45 cable with plug and socket for serial connections of conference units

DSPPA D7155 is an advanced chairman's console designed for professional conference systems. The combination of conference management, voting, external device control, and high-quality voice transmission makes the device ideal for meeting rooms, offices, public institutions, and modern business spaces.