SE-5742 Rack-Mount Network Dual-Channel Audio Receiver

SE-5742 Rack-Mount Network Dual-Channel Audio Receiver

This wireless microphone system integrates multiple core technologies, delivering exceptional audio quality, superior interference resistance, and user-friendly operation. Paired with advanced network intelligence, it provides stable and efficient audio transmission solutions for diverse scenarios.

Delivering outstanding audio performance, it features a new audio circuit architecture with refined highs and powerful mid-to-low frequencies. A mute circuit eliminates switch-on/off impact noise. Utilizing a superheterodyne double-conversion design and multi-stage filters, it achieves a reception sensitivity of 12dBuV (80dBS/N), a comprehensive signal-to-noise ratio exceeding 105dB, and distortion <0.5%, delivering high-fidelity sound quality.

Digital pilot technology prevents frequency interference, while automatic frequency scanning and infrared pairing ensure user-friendly operation. Equipped with 100×2 (optional 50×4) UHF channels, PLL frequency synthesis enables microphone interchangeability. Adjustable transmit power supports an 80-meter operating range and signal amplifier expansion.

Features an industrial-grade dual-core CPU with network transmission and on-demand functionality (demo video required for bidding). Standard RJ45 interface supports multiple network protocols and cross-subnet access. Enables remote parameter configuration and firmware upgrades to reduce maintenance costs.

Microphone powered by AA batteries with 6–10 hour runtime. Boost circuitry ensures reliable performance at low battery levels. Full-metal body with impact-resistant steel grille. LCD screen displays real-time operational status. Adjustable volume for versatile application across multiple scenarios.

Category:

Product Description:

1. New audio circuit architecture delivers refined treble, powerful mid-to-low frequencies, and exceptional detail reproduction;

2. Superior dynamic tracking capability ensures effortless pickup at both close and distant ranges;

3. Innovative digital pilot tone technology eliminates interference between wireless microphones, effectively preventing frequency conflicts;

4. Automatic clean frequency search function avoids interference for hassle-free setup;

5. Infrared pairing function enables rapid synchronization of microphones to the receiver’s active channel;

6. Freely adjustable output volume for versatile application scenarios;

7. 100×2 (or 50×4) UHF frequency bands with PLL frequency synthesis, supporting interchangeable microphones;

8. Superheterodyne double-conversion design delivers exceptional reception sensitivity;

9. RF section employs multi-stage high-performance dielectric filters for superior interference resistance;

10. First IF uses surface acoustic wave (SAW) filters, second IF uses three-stage ceramic filters, significantly enhancing anti-interference capability;

11. Specially designed mute circuit effectively eliminates impact noise when microphone is turned on/off;

12. Microphone uses readily available AA batteries, providing 6–10 hours of continuous use;

13. The microphone incorporates a unique voltage-boosting design, ensuring consistent performance even as battery power diminishes;

14. Operating range of 80 meters, with support for extending connectivity via signal amplifiers to enable long-distance, wide-area mobile microphone operation;

15. Transmitter and receiver feature LCD displays for real-time feedback on system status;

16. Full-metal receiver and transmitter housing with impact-resistant, elastic steel mesh exterior design;

17. Adjustable transmit power with high/low power selection switch on handheld unit for optimizing operational range based on environment;

18.  Network transmission capability: wirelessly streams audio to designated terminals via network (provide product demonstration video in bid);

19.  Network on-demand functionality: streams specified songs to designated terminals;

20. High-speed industrial-grade dual-core CPU chip;

21. Network management capability for remote parameter configuration;

22. Standard RJ45 network interface; connects to any Ethernet port, supporting cross-subnet and cross-router operation;

23. Supports remote firmware upgrades for terminals, reducing maintenance workload.

 

Technical Specifications:

Frequency Range: 640MHz-690MHz

Modulation: FM (PLL Phase-Locked Loop Frequency Synthesis)

Adjustable Channels: 100×2

Channel Spacing: 250kHz

Frequency Stability: ±0.005%

Dynamic Range: 100dB

Maximum Offset: ±45kHz

Audio Frequency Response: 40-18kHz (±2dB)

Total Harmonic Distortion: <0.5%

Total Signal-to-Noise Ratio: >105dB

Receive Mode: Superheterodyne Double Conversion

Pilot Mode: Digital Pilot

Audio Output: Balanced Output and Mixed Output

Antenna Connection: TNC/50 ohms

Intermediate Frequency: 110 MHz/10.7 MHz

Receive Sensitivity: 12 dBuV (80 dB S/N)

Microphone Pickup: Dynamic

Microphone Frequency Adjustment: Infrared Synchronization

Microphone Spurious Harmonic Suppression: -60dB

Microphone RF Power Output: 3-30mW

Network Protocols: TCP, UDP, ARP, ICMP, IGMP

Network Chip Rate: 10/100Mbps

Audio Encoding: MP3/PCM/ADPCM

Sampling Rate: 8K-48KHz

Bitrate: 64Kbps~768Kbps

Network Latency: ≤100ms

Frequency Response: 30Hz-20KHz

Power Supply, Power Consumption: DC 24V, ≤20W

Product Dimensions (W*D*H): 482*155*45mm

Weight: 0.6kg

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