E402True Diversity Dual Channel Wireless Microphone System(Antenna cascade)

Receiver frequency range: 640MHz–690MHz(Customizable)
Frequency tuning step: 25kHz
Total number of channels: 2000
Demodulation method: WFMD
Diversity method: Dual-antenna active true diversity with built-in power splitter
Isolation between dual antennas: >60dB
Sensitivity: -90dBm
Maximum frequency deviation: 50kHz
Pilot mode: BPSK pilot
Audio dynamic range: >105dB
Frequency response: 20Hz–20kHz
Audio latency: 1.9ms
Audio output impedance: Differential 100Ω
Maximum audio output level: +6dBu
Operating temperature: -30℃ to 70℃
Built-in intermodulation-free frequency planning algorithm to effectively avoid intermodulation interference
One-key frequency scan function: Provides the optimal signal frequency with the best signal-to-noise ratio on site
Uses DDS 4th-order optimization algorithm to detect wireless environment conditions and optimize matching scan program
One-key pairing function: Quickly pairs with handheld microphones for use
Built-in interference warning function: Alerts when interference signals reach a threshold
Antenna power supply function: Provides phantom power for active blade antennas or amplifiers
Dual-channel audio mix output interface included
Audio mix output supports MIC/LINE switch
One-key lock function to prevent misoperation
Software + hardware automatic mute
SLKD3 multi-stage programmable digital audio compression/expansion
Compatible with handheld transmitters, bodypack transmitters, and gooseneck conference transmitters
Receiver operating current: <400mA (12V)
Touring, stage performances, and small to medium-large events (up to 16 channels)

DETALLES DEL PRODUCTO / Detalles

I. Receiving System

•  True diversity reception       Dual-antenna reception         Antenna cascade      Dual-antenna active true diversity with built-in power splitter        Five-chip cooperative system improves performance by up to 30%


I Output Performance

• Main unit output: +6dBu

E402正面

I Features

1.Five-chip cooperative system, performance improved by up to 30%


Equipped with an innovative five-chip cooperative system, breaking the computing power limits of traditional single-chip designs! Through multi-chip collaboration and data intercommunication, it achieves breakthroughs in both computing efficiency and operational stability, with core performance improved by up to 30% compared to traditional solutions.


E302性能提升-------

2.Encrypted digital communication system, delivering clear and pure audio quality

The wireless microphone is equipped with a professional encrypted digital communication system, ensuring secure signal transmission and clear, pristine audio from the source. Using an encryption protocol, it effectively prevents signal interference and maintains a stable communication link even in multi-performer or complex performance environments.


E400无线话筒加密数字通讯系统

3.230mm dipole antenna, reception efficiency increased by 23%

Equipped with a customized 230mm dipole antenna, specifically tuned for wireless signal reception scenarios. Compared to traditional antennas, reception efficiency is increased by 23%.


E302加密数字通讯系统,音质清晰纯净

4.Suitable for extreme temperatures, operating from -30℃ to 70℃

Professional audio equipment designed for complex climate conditions, capable of withstanding extreme temperatures from -30℃ to 70℃, easily adapting to high-altitude cold performances, high-temperature outdoor broadcasts, winter events and conferences in northern regions, and hot-venue environments in southern areas.

E400高低温环境适

5.Handheld transmitter with ultra-low power consumption, providing up to 20 hours of continuous operation


Designed for long-duration work scenarios, the handheld wireless microphone features a self-developed low-power RF and audio processing chip for ultimate power efficiency. With a fully charged battery, it can operate continuously for 20 hours. Whether it’s all-day theater performances, multiple outdoor music festival sessions, long-duration conferences, or extended live broadcasts, there’s no need for frequent battery replacements or mid-event charging, completely eliminating power anxiety.


E300连续工作时间20小时--.png

6. Antenna cascading function

Antenna cascading enables multiple receivers to share a set of antennas without the need for additional antennas or distributors, simplifying cabinet wiring and reducing the overall equipment matching cost. The maximum number of available channels for the entire machine is increased to 16

e302天线级联功能


IProduct List