Network PA System – 4G Network Power Amplifier (2U, 400W, Class D, Linux)

Features:

- 2U standard mechanical design, luxurious 2U aluminum alloy panel, beautiful and generous.
- Built‑in embedded plug‑in software module, used with power amplifier and speaker to expand functions.
- Adopts domestic Linux system, stable performance and fast operation.
- Supports 4G wireless communication and has built‑in IP network.
- Supports platform control of volume and equalization, and remote control of volume via the platform.
- Supports real‑time return of machine status, including power supply voltage, fan speed, and temperature.
- Supports setting of zone and sub‑zone functions, and multi‑point broadcast function via the platform.
- Supports remote upgrade and expansion of the machine via the platform.
- Supports local and remote zone division, and group broadcast functions.
- Equipped with USB interface and U‑disk playback function.
- Supports multiple audio signal sources such as network playback and local playback.
- Supports 70V/100V and 4Ω~16Ω output modes.
- Equipped with independent over‑temperature and over‑current protection device, and can intelligently monitor the working status of the host computer.
- Supports remote shutdown, restart, and recovery of the device, and supports timing shutdown and timing alarm.
- Has an independent heat dissipation fan structure.
- 2‑channel line input, 2‑channel microphone input, 1‑channel auxiliary output; among them, 1‑channel microphone has priority.
- Supports priority broadcast function.
- Supports DHCP, compatible with routers, switches, gateways, the Internet, and various network topologies.
- Built‑in network isolation and lightning protection circuit.

This **IP Network PA System** 4G network power amplifier integrates cellular connectivity, intelligent monitoring, and flexible output modes for reliable IP broadcasting in remote or mobile deployments.

Technical Specifications:

- Frequency Band: ±2dB (300Hz~8kHz)
- Output Power: 360W
- Total Harmonic Distortion: ≤1%
- Signal‑to‑Noise Ratio: ≥80dB
- Network Interface: RJ45; 4G: Drawer‑type card slot
- Network Transmission Rate: 100Mbps
- Supported Protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP, SIP
- Audio Formats: mp3, wav
- Audio Mode: 16‑bit stereo CD quality
- Sampling Rate: 8K~48K
- LINE OUT Output Voltage: 775mV, 2‑position Lotus connector
- LINE OUT Output Impedance: 470Ω
- AUX Input Sensitivity: 470mV (non‑balanced)
- MIC Input Sensitivity: 5mV (non‑balanced)
- Power Boost: ≤12dB
- Rated Power: 400W
- Working Humidity: ≤90%RH
- Rated Power Frequency: 100Hz~10kHz
- Output Modes: 4Ω~16Ω fixed impedance output, 70V/100V constant voltage output
- Protection Functions: Over‑current, over‑voltage, over‑temperature, short‑circuit protection
- Operating Temperature: -20℃~60℃
- Relative Humidity: 20%~80%, non‑condensing
- Input Voltage: AC200V±10%
- Product Size: 485×330×106mm
- Packaging Size: 520×420×185mm
- Net Weight: 7.5kg
- Gross Weight: 8.7kg

In summary, this **IP Network PA System** 4G network power amplifier with 400W output, wide‑area connectivity, and comprehensive protection is the ideal choice for schools, remote campuses, construction sites, and temporary venues requiring flexible, network‑ready public address without wired infrastructure.