High-grade aluminum 2U black brushed panel, cabinet installation, beautiful and generous The equipment is designed with embedded computer technology and DSP audio processing technology 3-inch color touch screen display, industrial-grade touch operation mode to achieve human-computer interaction, sensitive touch feel With local U disk playback function, sequential playback mode, automatic stop after playback Support multiple operation modes (play, pause, song selection, previous song, next song, progress adjustment, volume adjustment. Adopt high-speed industrial-grade chip, the startup time is less than 1s With 100V, 70V constant voltage output and 4~16Ω constant resistance output 2-way signal input (1 microphone, 1 line. 1 EMC input interface, when inputting emergency alarm voice signal, it has the highest input priority 1 audio signal auxiliary output interface, which can expand external power amplifier Each channel volume is independently adjustable, with treble and bass adjustment Three-wire audio control forced output interface, no DC24V forced power supply required, and unlimited number of audio controls; compatible with 4-wire audio controllers, requires external +24V power supply 6-unit LED level indicator, easy to observe the output status of the amplifier Built-in 1-channel network hardware audio decoding module, supports TCP/IP, UDP, IGMP (multicast. protocol Realize network transmission of 16-bit stereo CD quality audio signal Support 1000-level custom audio priority mute control Support PSTN telephone broadcast, support SMS voice broadcast Support mobile WIFI on-demand, support wireless remote control on-demand Support server unified authorization operation management function, unified configuration management user and password Support DHCP, compatible with routers, switches, bridge gateways, Modem, Internet, 2G, 3G, 4G, multicast, unicast and other network structures Support intelligent voice prompt function when the terminal is newly configured and registered (if the device is connected. Support 15KVESD protection, built-in network isolation lightning protection circuit 1 PC download IP address serial port, used to modify the network decoding module IP address Digital network product, easy to expand, not restricted by geographical location, no need to add room management equipment Adopt the design concept of common network free line construction, easy to install The cooling fan adopts intelligent temperature control to start It has perfect output short circuit protection and over-temperature protection functions