(Features)

• White painted all-aluminum alloy shell and aluminum mesh grille, rust-proof, with a sleek, compact, high-end and elegant design;
• Adopts domestic integrated chips and Linux system, featuring excellent stability, security, portability and flexibility, which is 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, enabling real-time/timed music playback;
• Sampling rate adjustable in the background, allowing free selection of the highest sampling rate in the LAN for optimal sound quality (supports WAV 8K/16K/44.1K, AAC 16K/44.1K/48K optional);
• Background hardware resource monitoring, displaying CPU and memory usage ratio, and continuous running time;
• The device supports remote upgrade of standalone and batch units in LAN and WAN, facilitating efficient and fast customer service;
• Supports POE universal international standard IEEE 802.3at (25.5W) protocol;
• When equipped with a POE-powered POE switch, only one network cable connection is required, featuring simple construction and low cost;
• Power output up to 25W when powered by a POE switch, or up to 30W with an external DC24V power adapter when using a common switch;
• Equipped with 2×4.25-inch full-range speaker units, covering full frequency range, with clear, bright and pleasant sound quality;
• Built-in Class D 30W power amplifier circuit, with delicate sound quality and strong power;
• 1 set of short-circuit signal input, which can trigger the local alarm via software settings;
• 1 set of short-circuit signal trigger output, used to drive other linked devices;
• Standby power consumption less than 10W, meeting national environmental protection and energy-saving certification standards;
• Supports DHCP, compatible with routers, switches, Internet, multicast, unicast and any network topology;
• 15KV ESD protection, built-in network isolation and lightning protection circuit;

技术指标 (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: 100Hz ~ 18KHz;
• Harmonic Distortion: ≤ 1%;
• Signal-to-Noise Ratio (SNR): ≥ 80dB;
• Rated Power: 25W (when powered by POE), 30W (DC24V/2A);
• Short-circuit Input/Output: Terminal-style Phoenix plug-in terminals;
• Operating Ambient Temperature: -20℃ ~ 50℃;
• Relative Humidity: 20% ~ 80%, non-condensing;
• Power Consumption: ≤ 40W;
• Input Power: POE/DC24V;
• External Dimensions: 373152100mm;
• Decoration Material: Aluminum alloy/aluminum mesh/aluminum alloy top and bottom covers;
• Speaker Size: 4.25"×2;