SPECIFICATION • Mono microphone/input channel to choose 4Ch • 8Ch and 12Ch. Others standard and function are the same • MA Series mixer Technical • Frequency response • Microphone/input to output:+/-1dB 20Hz-20Hz • Total Harmonic Distortion • +20dBu:<0.008%@1kHz • Microphone sensitivity:-30dB, output +20dBu:<0.008% @1kHz • AUX and MIX • (8Chanel, pull down fader, 22Hz-22KHz, unweighter:<-84dBu • Crosstalk • Channel processing mute status:<90dBu • 20Hz-10kHz, <80dB 10kHz-20kHz • Pull down fader(the standard according to 0): • <90dBu 20Hz-10kHz, <80dB 10kHz-20kHz • Auxiliary potentiometer sent off:<90dBu 20Hz-10kHz • <80dB 10kHz-20kHz • Input/Output impedance • Microphone input:~2kΩ • Mono statu input:>40kΩ • Stereo line input:>30kΩ • Stereo return input:>10kΩ • Headphone output:~40Ω • All other audio output:75Ω • Input/Output level • Max.Level microphone input:+12dBu • Max.Level Mono line:+38dBu • Max.Level Stereo line:+21dBu • (200Ω)Headphone output:+150mW • +21dBu into 10kΩ • High-pass filter:100Hz,18dB/octave