Microphone Pre-Amplifier

Specification

Description / value

Headset Mic impedance:

200Ω (Dynamic)

Headset Mic Voltage

1.7V (Electret selectable)

Routed to 4-wire output @ 0dBu out:

Mic gain

60dB (dynamic) 45dB (electret)

Frequency response

300Hz – 10kHz + / -3dB (contoured for intelligibility)

Distortion <0.2% THD @ 1kHz

Noise-

<-55dBu dynamic, <-65dBu electret