Network PA System – POE Network Coaxial Ceiling Speaker (6.5″, 30W, Linux)

Features:
- Brand‑new ABS plastic shell with iron mesh grille, integrating one‑way receiving digital decoding terminal and active ceiling speaker.
- Adopts domestic integrated chips and Linux system, excellent stability, security, portability and 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 communication interface, supporting LAN and WAN deployment.
- Built‑in 1‑channel network hardware audio decoding module for real‑time/timed music playback.
- Sampling rate adjustable in the 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.
- Supports POE IEEE 802.3at (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 coaxial speaker unit – powerful bass, clear midrange, delicate treble.
- Built‑in Class D 30W 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).
- Standby power <10W, meeting national environmental protection and energy‑saving certification standards.
- Supports DHCP, compatible with routers, switches, Internet, multicast, unicast, any network topology.
- 15KV ESD protection, built‑in network isolation and lightning protection circuit.

This **IP Network PA System** ceiling speaker delivers high‑fidelity coaxial sound with convenient POE power and remote management, ideal for drop‑ceiling installation in commercial buildings.

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
- Rated Power: 25W (POE), 30W (DC24V/2A)
- Short‑circuit I/O: Phoenix terminals
- Operating Temperature: -20℃ ~ 50℃
- Humidity: 20% ~ 80%, non‑condensing
- Power Consumption: ≤40W
- Input Power: POE / DC24V
- Cutout Size: Φ215mm
- Product Dimensions: 238×180mm
- Material: Brand‑new ABS
- Speaker: 1×6.5″ coaxial

In summary, this **IP Network PA System** POE network coaxial ceiling speaker with Linux‑based decoding, 6.5″ coaxial driver, and flexible power options is the ideal choice for schools, hotels, offices, and commercial spaces requiring discreet, high‑performance IP audio distribution.