Guangzhou DSPPA Audio Co., Ltd.
Tel: 020-28346138
Fax: 020-81305947

CM9861L Chairman Microphone Unit


● Frequency response: 100Hz-13KHz
● Sensitivity: -35dB±2dB (1kHz 0dB' 1V/Pa)
● Reference sound receiving distance: 20~120cm
● Embedded installation and microphone pipe can be pulled out
● Newly digital design
● Listening and speaking
● The system power supply for all the delegate units is provided by the main unit at 24 safe voltages.
● With 8-PIN T-type hand-in-hand interconnection cable
● Built-in high-fidelity speaker and earphone jack.
● Electric capacity type microphone.
● Extended pipe optional.
● Volume control of each microphone independently.
● The annular red indicator lamp could show the state of the microphone.
● The chairman unit number in the system is unrestricted, can join in any position of the system.
● Chairman can turn down delegate MIC by priority button,
● Indicative sound for chairman unit (optional)
● C. only mode: only chairman microphone can be turn on.
● Earphone output jack and wired microphone input jack(optional)
● Accessory Long microphone unit: 1
● Option Extension cord 8PIN: 5m, 10m, 15m, 20m, 25, 50m.

  • Introduction
  • Specification

-The CM9861L Delegate machine for conference systems, with compact design Light and sturdy, easy to install and store. Setting the talk button to ON allows the delegate machine to talk and also turn off the speakers to counteract the effects of feedback minus. If the talk button is OFF, the microphone cannot be used but the speaker can be turned on, allowing the sound to be heard another device transmits.
-The CM9861L delegate unit come with a long microphone as standard accessory.



Power Source

DC24V (Supply by 8PIN cable - supplied from the Central Unit MP9868II)


Headphone/ Recording: (Ø 3.5 mm, mini jack), 9dBu

Internal speaker: 115Ω-130Ω, 200 mW


Speech: Microphone, speaker on-off control by speech button

Priority: Microphone, speaker on-off, other microphone cut-off, and single-tone chime activation by priority button

Volume control: Headphone/Recording and internal speaker volume adjustable

Microphone unit(Accessory)

Electret condenser microphone Directivity: Unidirectional Impedance: 1.8KΩ

Sensitivity: -35dB±2dB (1kHz 0dB’ 1V/Pa) Frequency response: 100 Hz - 13 kHz

Length: 518 mm

Structure and Type



< 0.05%

Crosstalk Attenuation




0°C to +40 °C (32°F to 104°F)

Operating Humidity

90 %RH or less (nocondensation)


Upper case: ABS plastic, metallic gray, painted Bottom shell: ABS plastic, black

Microphone lever: Alloy, black and has a red ABS plastic ring to indicate the light.


152x115x60mm (Excluding microphone unit)


0.9Kg (Excluding microphone unit)


Long microphone unit: 1 (518mm)

Option Extension

Cord 8PIN: 5m, 10m, 15m, 20m, 25, 50m.

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  • Tel:+86 020 37166520
  • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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