Network PA System – IP Network Lawn Speaker (Aluminum Alloy, POE, 6.5″ Coaxial)

Features:
- High‑strength aluminum alloy outer casing and iron mesh grille, sturdy and durable.
- Column fixing plate with integrated anti‑theft screw hole structure, beautiful, firm, and convenient for anti‑theft installation.
- Adopts domestic integrated chips and Linux system, excellent stability, security, portability, flexibility, incomparable to single‑chip solutions.
- CPU: ARM Cortex A7 @ 900MHz.
- Audio Codec: supports software codec, G.711, G.726, ADPCM, and 3A (AEC/ANR/AGC).
- Standard 1×10/100M RJ45 network interface, LAN/WAN deployment.
- Built‑in 1‑channel network hardware audio decoding module for real‑time/timed music playback.
- Sampling rate adjustable in the background; can freely select highest sampling rate in LAN for optimal sound quality (WAV 8K/16K/44.1K, AAC 16K/44.1K/48K optional).
- Background hardware resource monitoring: CPU/memory usage ratio and continuous running time.
- Supports remote upgrade (standalone and batch) over LAN/WAN.
- Supports POE IEEE 802.3af/at (25.5W) protocol.
- With POE switch, only one network cable required – simple construction, low cost.
- Power output: 25W (POE) or up to 30W with external DC24V/2A adapter.
- 6.5‑inch waterproof coaxial speaker unit – full frequency range, clear, bright, pleasant sound quality.
- Built‑in Class D 30W digital amplifier circuit – delicate sound quality, strong power.
- 1 set of short‑circuit signal input (trigger local alarm via software).
- 1 set of short‑circuit signal trigger output (drive other linked devices).
- Standby power <10W, meeting national environmental protection and energy‑saving certification standards.
- Supports DHCP, compatible with routers, switches, Internet, multicast, unicast, any network topology.
- Supports 15KV ESD protection, built‑in network isolation and lightning protection circuit.

This **Network PA System** lawn speaker combines weather‑resistant construction, POE convenience, and high‑fidelity audio deployment for IP‑based outdoor public address.

Technical Specifications:
- Network Interface: Standard RJ45
- Supported Protocols: HTTP, HTTPS, UDP, TCP/IP, RTP, RTSP, RTMP, MQTT, FTP, SIP
- Audio Formats: mp3, wav
- Sampling Rate: 8K - 48K
- Network Transmission Rate: 100Mbps
- Audio Mode: 16‑bit stereo CD‑quality sound
- Output Frequency: 80Hz - 18KHz
- Harmonic Distortion: ≤1%
- Signal‑to‑Noise Ratio (SNR): ≥80dB
- Rated Power: 25W (POE), 30W (DC24V/2A)
- Short‑circuit I/O: Phoenix terminals
- Operating Temperature: -20℃ - 50℃
- Relative Humidity: 20% - 80%, non‑condensing
- Power Consumption: ≤40W
- Input Power: POE / DC24V
- Dimensions: 320×220×70mm
- Material: Aluminum alloy + iron mesh
- Speaker unit: 6.5‑inch coaxial ×1

In summary, this **Network PA System** IP network lawn speaker with POE/DC power options, waterproof coaxial speaker, and Linux‑based audio decoding is the ideal choice for campuses, parks, resorts, and outdoor public spaces requiring discreet, high‑performance IP broadcasting.