2026 Guangzhou DSPPA Audio Co., Ltd.
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2026 Guangzhou DSPPA Audio Co., Ltd.
2026 Guangzhou DSPPA Audio Co., Ltd.
2026 Guangzhou DSPPA Audio Co., Ltd.

Full Digital Conference Delegate Unit Microphone D6278

  • All-in-one design integrating speech, attendance registration, and microphone analog backup functions.

  • Dual microphone output backup combining one daisy-chain digital channel and one independent 48V phantom-powered analog channel for maximum system reliability.

  • Supplied with a 2-meter dedicated 8-core DIN high-density cable with a secure aviation plug.

  • Integrated square-column stem with a cardioid electret condenser capsule and a dual-color (red/green) status indicator ring.

  • Includes a 3.5mm stereo headphone jack for real-time speech monitoring from other units.

  • Independent volume controls for both microphone sound pickup and headphone monitoring.

  • Microphone on/off button (with priority key on chairman unit) used for speaking, attendance, and unit ID numbering.

  • Each unit is assigned a unique ID address for accurate system identification and management.

  • Compatible with automatic camera tracking after system host or PC software configuration.

  • Automatic self-diagnostic capability upon connection to the central control host.

  • Passive unit directly powered by the system controller with a 24V DC input voltage.

  • Chairman unit supports configurable priority function and podium mode via host settings.

  • Chairman unit allows reviewing and approving speech requests from delegate units.

  • Chairman unit can activate freely without being limited by the active delegate count threshold.

  • Chairman unit has absolute control over conference order via its override priority key.

  • Chairman unit connection position within the system daisy-chain is unrestricted.

  • Supports flexible "daisy-chain", T-type, and star ("+") wiring connection topologies.

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The D6277/D6278 Dual-Backup Desktop Speaking Units integrate discussion and attendance sign-in while featuring a high-reliability dual-channel redundancy design. Engineered for mission-critical applications, the chairman unit includes a dedicated priority button for effortless moderation. A sleek 2.1-inch circular LCD touchscreen provides real-time status updates alongside intuitive microphone controls, making these units the ideal choice for high-demand conference environments.


Specifications of Full Digital Conference Delegate Unit Microphone

Model

D6277 D6278

Structure Type

Desktop

Effective Frequency Range with Gain Limiting (±3dB)

Unit A Input to Unit B Monitoring

80Hz-12kHz


Host Line Input to Unit Monitoring

80Hz-16kHz


Unit to Host Line Output

80Hz-16kHz

Static Power Consumption

<1W

Maximum Power Consumption

<2W

Signal-to-Noise Ratio

>80dB (A-weighted)

Crosstalk Attenuation

>80dB

Harmonic Distortion

<0.3%

Headphone Output

9dBu, 8-32Ω, 3.5mm

Operating Power

Powered by host, DC24V

Unit Interface

8-Core DIN dedicated connector

Microphone

Microphone Type

Cardioid electret condenser


Input Sensitivity

-42±2dBV/Pa


Frequency Response

50Hz-20KHz


Maximum Sound Pressure Level

125dB

Product Dimensions

153×130×119mm

Product Weight

0.8kg


Connection-Diagram-of-D6201.jpg

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