Clear-Com HLI-FBS - Manual (Page 120)

10.1.8 Hot Mic output
Specification Description / value
Maximum level before clipping 12 dBu
Nominal output level 0dBu(selectable)
Output impedance <= 100
Ω
The following specified for a route from a dynamic headset
Frequency response 300 Hz - 12 kHz ±2dB
Distortion <0.2% THD @ 1 kHz
Noise <-55dBu
Table 47: Main Station: Hot Mic output
118 HelixNet Partyline User Guide