IR8003 adopts high quality digital audio transmission of network audio module to transmit signal.Rack-mounted 2U alloy panel,TCP/IP high quality digital audio transmission without noise.3.2 inch TFT,65000 real color screen.Built in 50W stereo power amplifier,rated voltage,rated impedance outputs,2 audio outputs, 1 audio signal outputs,2 mic inputs, to receive the programs from audio server,local volume adjustment,broadcast the audio files which in the server, hardware audio decoding, broadcasting audio hardware coding can connect to the external power amplifier.functions to test the room speakers,supports unicast,multicast, restart time:less than 3seconds, Power::~220V/50Hz.Output: rated voltage 100V,70V;rated impedance 4~16Ω,network interface:standard RJ45supports ICP/IP,UDPIGMP protocol(multicast). Audio format:MP3 MP2.sample 8K~48KHZ.Transmission speed:100Mbps. .Audio module:stereo,CD acoustic. Protection: overload,over temperature,short circuit.Built in power to control amplifier. Audio broadcast amplifier under 1000W is acceptable, time turn on /turn off the audio broadcast amplifier.