1. power amplifier power timing open and close control function;
2. 3 microphone input,2 way AUX input,1 way AUX output;
3. 70V,100V constant pressure output and 4-16 output;
4. 5 unit LED display lamp;
5. erase function, easy to insert emergency broadcast,output short circuit protectionProtection and alarm,overheat and saturation distortion alarm;
6. U disk player, 4 partition output; each channel independent volume control;
7. with limiter function, music without distortion.
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