Electrical Characterics Frequency Response: 20Hz-20kHz (+1.0dB,-1.5dB); Dynamic Range: Above 104dB (typical 110 dB); Hum and Noise: Less than -80 dB; Distortion: Less than 0.007% (1kHz, max. level) INPUT Number of Channels: 2 (balanced); Nominal Level: +4/-10dB (w/level select sw); Maximum Level: +24 dB (level select sw: +4 dB); Impedance: 20 K Omega OUTPUT Number of Channels: 2 (balanced); Nominal Level: +4/-10 dB (w/level select sw); Maximum Level: +24 dB (level select sw: +4 dB); Impedance: 150 Omega AD/DA Conversion A/D Conversion: 20 bit linear; D/A Conversion: 20 bit linear; Sampling Frequency: 44.1 kHz