Clear-Com HMS-4X, HelixNet digital 12 Ch. headset/speaker main station

Linking
Up to three Main Stations may be linked using any combination of HLI-ET2 Ethernet or HLI-FBS Fiber modules.
Up to 3 LQ-R Series devices can be linked using the HLI-ET2 module. All linking is via IP over LAN/WAN connections.

Channels
12 or 24 intercom channels. One local and any networked program audio feeds (Assignable to intercom channels)

Connectors
Intercom Line: (2) 3-pin XLR–M, (2) 3-pin XLR–F
Headset: 4-pin XLR–M
USB: Type A & Micro AB
Program: 3-pin XLR–F
SA (Stage Announce): 3-pin XLR–M
Hot Mic/IFB Interface: 1/4” (0.64cm) phone jack
GPI: 25 way D-type female (4 Opto-Iso GPI, 4 GPO Relays)

Microphone Pre-amplifier
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB

The following is specified for a route to four-wire output at 0dBu out:
Mic Gain: 60dB (Dynamic), 45dB (Electret)
Frequency Response: 200Hz – 10kHz ±3dB
Contoured for Intelligibility Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu (Dynamic), <-65dBu (Electret)

Headphone Amplifier
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dBu (selectable)

The following is specified for a route from a four-wire input at 0dBu in:
Max Gain: 0dB
Frequency Response: 40Hz – 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu
Headphone Limiter: 0dBu (selectable)

Loudspeaker Amplifier
Load Impedance: 8Ω
Output Level: +18dBu before clipping

The following is specified for a route from a four-wire input at 0dBu in:
Max Gain: 18dB
Frequency Response: 200Hz – 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-50dBu

Program Line Input
Maximum Level Before Clipping: +18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ

The following is specified for a route to four-wire output at 0dBu out:
Frequency Response: 20Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-65dBu

Stage Announce Input
Maximum Level Before Clipping: +18dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100Ω

The following is specified for a route from a dynamic headset:
Frequency Response: 300Hz – 12kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-55dBu

Hot Mic Input
Maximum Level Before Clipping: +12dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100Ω

The following is specified for a route from a dynamic headset:
Frequency Response: 300Hz – 12kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu

Main Power
Input Voltage Range: 100 – 240VAC
Input Frequency Range: 50 – 60Hz
Input Power: <= 250VAC
Output Voltage: +/-29VDC ± 1V
Output Currentper Channel: 1.5A (continuous)
Power Connector: IEC60320-1-C14

Environmental
32º – +104ºF (0 – +40ºC)
90% relative humidity

Dimensions
1.75 x 19 x 13 in (HxWxD)
(44 x 483 x 320 mm)

Weight
5.83 lbs. (2.65 kg)