Built in embedded network voice decoding module, completes synchronous reception and decoding of network audio streams: designed with embedded PC technology and DSP audio processing technology: using high-speed industrial grade ARM chip, startup time reaches millisecond level: improves device stability;

TCP/IP high-quality digital audio transmission, with sound quality reaching CD level (bit rate 320kbps)

Using a fixed static IP address, the address will not be lost when the network changes, ensuring stable operation;

1 network, 2 LINE inputs, 2 MIC inputs; Implement local external audio input and emergency broadcast input, each with independent volume adjustment; 1-channel EMC input, prioritizing network and other external signals to diversify various linked emergency alarm devices; EMC input has the highest priority, network alarm signals take priority over local MIC input, local MIC input takes priority over AUX and network music, and local AUX and network music signals have no priority.

Each MIC/LIN E signal input comes with an independent digital volume adjustment.

All digital high, low, and master volume adjustment allows for free adjustment of sound quality: clearer, more flexible, and accurate adjustment.

Reserved expansion terminals, with the option to configure a DC24V power supply module. Equipped with a 1-way three wire alarm strong switching output interface, the corresponding area alarm is controlled by the host: no additional 24V strong switching power supply is required, and the number of sound controls is not limited; Reserve one RS232 serial port for easy expansion into other ports.

Automatic fault detection and LED prompt function; Automatic fault detection system function and overload, over temperature, and over voltage protection; Voltage limiting circuit processing effectively avoids audio output signal distortion

Comprehensive short-circuit and high-temperature protection circuits ensure the safety of the system's use;

Equipped with temperature control detection device, dual fans for heat dissipation, the fan automatically starts to dissipate heat when the temperature of the radiator reaches 55 degrees.

Comes with one audio output interface, making it convenient for multiple devices to connect, monitor, and drive active speakers;

Equipped with intelligent power management function, the device adopts a built-in CPU to determine the operating status. When there is no working state, the amplifier automatically enters a sleep state with a standby power of ≤ 0.2W. When there is a playback task, the amplifier automatically starts. It has automatic wake-up and pre-set power on time for the amplifier.

Equipped with remote volume adjustment function, the terminal automatically adjusts the volume to the default state set by the system when starting and playing tasks automatically. The default values for automatic volume adjustment can be set as background music volume, emergency broadcast volume, fire broadcast volume, etc.

Network interface: RJ45

Transmission rate: 10Mbps/100Mbps

Supported protocols: TCP/IP, UDP, IGMP (multicast)

Audio format: MP3/MP2

Audio mode: 16-32-bit stereo CD sound quality

Sampling rate: 8K~48K

Bit rate: 32~320Kbps

EMC input sensitivity: 775mV

AUX input sensitivity: 350mV

MIC input sensitivity: 10mV

Rated power: 350W

Standby power:<0.2W

Frequency response: 50Hz~18KHz+1/-3dB

Harmonic distortion: THD ≤ 0.1%

Signal to noise ratio: ≥ 85dB

Transmission mode: 4-16 Ω fixed resistance output, 70V/110V constant voltage output