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Clear-Com HB-704 Encore 4-Channel Remote Headset Station

Clear-Com HB-704 Encore 4-Channel Remote Headset Station

SoundPro Item: 31770 | Part Number: HB-704

Regular price $670.00
Regular price $670.00 Sale price $670.00
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MSRP: $670.00 | MAP: $670.00

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  • Momentary/Latching Talk switch with LED
  • Microprocessor controlled logic and switching
  • Visual call signaling
  • Headset connector with volume control and sidetone adjust
  • Optional 4-wire or TW daughter boards for flexibility
  • Mountable into a standard US two-gang outlet box

The HB-704 is a four-channel-selectable, full-duplex headset station, able to be mounted into a wall or other surface. This headset station is ideal for installation in theatrical, performance, broadcast, and industrial facilities - wherever a multi-channel, full-duplex headset communications panel is desired.

The HB-704 mounts in a standard US two-gang outlet box. The station covers excellent speech intelligibility even in high noise environments. Microprocessor-controlled logic plus a set of internal and external controls allow the features of the station to be tailored to the needs of the user. Electronic switching for the talk button, blue-color LED (on) or amber-color (o), permits momentary or latching operation. A Remote Mic Kill (RMK) signal on the intercom line will turn o the talk function if it is accidentally left on. A red-color LED tracks the incoming call signal, so it can be used for visual cueing.

An associated call button allows the user to place a call signal on the selected intercom line. The standard 4-pin XLR headset jack accommodates Clear-Com and compatible dynamic headsets. A sidetone level control adjusts the amount of the user’s voice heard in the headset. An automatic limiter circuit adjusts and limits the microphone output to the intercom line. A four-position switch allows the user to select from the attached intercom channels. Connections to the intercom lines are made via a screw-terminal block, using standard two-wire shielded mic cable.

The station may be used with the optional TW (two channels on a single mic cable) daughter board. With the TW board, the station becomes plug-in compatible with a Clear-Com TW system. The HB-704 is housed in a durable package with a steel front panel.

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Specifications

Dimensions
Dimensions (HxWxD)
4.5" x 4.6" x 1.75"
Electrical
Load Impedance
>= 8
Input Voltage Range
20-30V DC
Input Current (Idle)
<= 50mA
Input Current (Max)
<=100mA
Audio
Input Impedance
>= 1K
Output Impedance
<= 25
Crosstalk
< -60dB
Connectivity
Input Type
Dynamic
Output Limiter Threshold
+5dBu ± 3dB
Maximum Output Level Before Distortion
>= 17dBu
Shipping
Weight
0.46 pounds (0.21 kg)
General
Mic Limiter Threshold
-2dBu ± 3dB
Mic Limiter Range
>= 15dB
Off Noise
< -74dBu
Max Level Before Clipping
>= 12dBu
Headset Mic – Partyline
300 – 15kHz ± 3dB
Partyline – Headset Out
300 – 15kHz ± 3dB
Intercom Line
Seven terminal connector
Option Switches
Two DIP switches
Option Board Jumper
Two sets of options jumpers
Environmental
32°F to 122°F (0°C to 50°C)

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