10 specifications, 1 main station (hms-4x), 1 connectors – Clear-Com HLI-FBS User Manual
Page 117: 2 microphone pre-amplifier, Specifications, Main station (hms-4x), Connectors, Microphone pre-amplifier
10 Specifications
10.1 Main Station (HMS-4X)
10.1.1 Connectors
Specification
Description / value
Intercom Powerline Outputs
(4) 3-pin XLR–M
Headset
4-pin XLR–M
USB
USB Type A and Micro-AB
Program
3-pin XLR–F
SA (Stage Announce)
3-pin XLR–M
Hot Mic / IFB Interface
1/4 in. (0.64 cm) phone jack
GPI
25 way D-type female
Table 40: Main Station: Connectors
10.1.2 Microphone pre-amplifier
Specification
Description / value
Headset Mic impedance:
200
Ω (Dynamic)
Headset Mic Voltage
1.7V (Electret selectable)
Limiter
+23 dB
The following specified for a route to 4-wire output @ 0dBu out
Mic gain
60dB (dynamic) 45dB (electret)
Frequency response
300 Hz – 10 kHz + / -3dB (contoured for intelligibility)
Distortion
<0.2% THD @ 1 kHz
Noise-
<-55dBu dynamic, <-65dBu electret
Table 41: Main Station: Microphone pre-amplifier
115
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