PIONEER MA-100 is a multi mixing amplifier, manufactured in 1985. The output is 85mv for line and pre out is 0.15v. The frequency response range is from 10hz to 80khz. Input sensitivity is 0.4mv for mic and 85mv for line. The signal to noise ratio is 75db for mic and 83db for line. The total harmonic distortion is 0.008%.