Network PA System – IP Network Sound Column (Aluminum, 80W, 2×6.5″ + Tweeter, Linux)

Features:
- White sprayed all‑aluminum alloy shell and aluminum mesh grille, rust‑proof, sleek and compact design.
- Column fixing plate made of milky white ABS integrated plastic plate, mildew‑resistant, extends service life.
- 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, compatible with G.711, G.726, ADPCM, and audio 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 background; 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 of standalone and batch units over LAN/WAN.
- Equipped with 2 high‑fidelity 6.5‑inch waterproof full‑range units and 1 2.5‑inch tweeter unit.
- Built‑in Class D 80W digital power 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).
- Multiple working modes: timed playback, emergency playback, network playback, three‑sound priority.
- Standby power <10W, meeting national 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.
- Switching power supply design with 4KV lightning protection, supports AC100‑240V.

This **Network PA System** IP sound column delivers high‑power, full‑range audio for outdoor broadcast applications, with durable all‑aluminum construction and intelligent network management.

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%
- SNR: ≥80dB
- Line Input Sensitivity: 3.5mm standard audio terminals
- Short‑circuit I/O: Phoenix terminals
- Operating Temperature: -20℃ ~ 50℃
- Humidity: 20% ~ 80%, non‑condensing
- Power Consumption: ≤80W
- Input Power: AC100‑240V, 50/60Hz
- Dimensions: 412×210×125mm

In summary, this **Network PA System** IP network sound column with 80W Class D amp, 3‑driver array, and rugged aluminum shell is the ideal choice for schools, stadiums, industrial parks, and outdoor public spaces requiring high‑performance, weather‑resistant IP broadcasting.