Introducin: MC22 Sound console MC2206-MC2216 Input impedance of Mike: 2KΩ Input level of Mike: 60dB Input impedance of circuitry: 47KΩ Input level of circuitry: 20dB Nsert level of circuitry: 10dB Input impedance of effect response: 47KΩ Input level of effect response: 10dB Output impedance of double track: 600Ω Output level of double track: +4dB -10dB Output impedance of accessorial1. 2: 600Ω Output level of accessorial1. 2: +4dB -10dB Output impedance of stereo earphone: 32Ω Frequencyresponse: 20Hz~20KHz +0-1dB Total harmonic distortion: 20Hz~20KHz<0. 1% Working voltage: AC220V± 5% 50Hz± 2Hz Technical Parameter: 1: This series product has 6-16 road microphone input channel 2: Entire machine brings own the high-level 16 numerical codes reverberation, 3: The double 7 sections of frequencies sound equalizer 4: The stereo sound earphone outputs, 5: Outside meets the effect connection 6: The +48v mirage power supply system 7: The 12v illumination plug.