1.Aux input:﹣10dB  

2.Mic input:﹣40dB 

3.Treble/bass:±15dB

4.Distortion:1<+0.1%

4.Noise：﹣45dB  

5.S/N:90dB  

6.2 Aux L&R input，1 Aux output

7.2 Mic input ,Mic 1 with priority ,Mic 2 with each delay repeat 

8.USB SD FM BT 

9.Echo delay repeat

10.Overheat、short circuit ,delay protection 

11.Power:350W 

12. 6 zone control  

13.4-16Ohms, 100V 

14.Chime function