1. more input/Export port;5a microphone port;31 auxiliary port;2Priority points;2output ports;
2. Have a way48VPhantom power supply interface;
3. Independent volume control for each channel;
4. Treble and bass control;
5. Automatic silence (with strong insertion function);
6. Frequency response:20HZ~20KHZ（±3db）;
7. Total harmonic distortion:AUX：0.05%，MIC：0.3%;
8. Signal to noise ratio:MIC INPUT：>80db AUX INPUT：>85db;
