40-17,000Hz (– 3dB) Monitor Output ............................................ 50-17,000Hz (– 3dB) Noise Level Mic (– 50)...................................................... – 55dB Line (+0) ....................................................... – 57dB T.H.D. ............................................................ 0.15% @ 1KHz MIC Input Level Electronic Balanced .................................... – 50dBu MIC Output Level Switchable Electronic Balanced ................ +0 / – 50dBu Unb