Functional Features：

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1.1U thickness, color liquid screen, silicone buttons, easy to operate;
2. Four in one audio source, host, amplifier, and area control;
3. Support emergency broadcasting MP3、 Multiple audio sources such as external audio input
4. Equipped with external import function for emergency broadcast recording;
5. Up to 255 partitions, with Chinese region note function;
6. Up to 20 cascaded expansion amplifiers can be used to achieve a total power output of 10kW;
7. Soft switching power supply and high-voltage Class D amplifier, high efficiency, low heat generation, and low distortion;
8. Adequate power margin, capable of long-term full load operation;
9. The power amplifier has complete output overload protection function;
10. Communication input misconnection with 380V protection function;
11. Four level surge protection capability higher than the national standard;
12. The amplifier outputs a DC bias voltage for short circuit detection;
13. Optional RS-485/RS-232/CAN communication module