1. Digital audio processor with function of loudspeaker’s. Partial function can be independently adjusted; 2. Microphone with two groups and twenty-two band parameters eq. Dual microphones adjustment; 3. Instead of wire connection, wi-fi adjustment is more advantageous (optional); 4. Drive-free usb connection for quick and convenient on-line; 5. Adopt 24 bit data bus and 32 bit dsp; 6. Music with fifteen band parameters eq. Music to main output highpass: 12db / 24db (0hz-303hz); 7. Microphone with twenty-two band parameters eq and compressor function; 8. Main output with ten band parameters eq and compressor; 9. Rear output with ten band parameters eq. Central output and sub output with seven band parameters eq; 10. Microphone with eight fbe level: one-eight; 11. Ten modes can be stored; 12. Microphone output, main output, central output, sub output and rear output with compressor and delay; 13. With system control mode and user mode. User mode cannot be stored after adjustment; 14. With music pitch function and coaxial and optical interface. Technical specifications: Snr: >80db Thd+n: Mic 110db Supply voltage: Ac 220v / 50hz