Features:

Stable inside PPE ensembles without discomfort.

• Can not interfere with SCBA/respirator
• Works with any SCBA or respirator
• Mic design eliminates transmission of ambient noise.
• “Shaped” audio provided near-boom mic speech in a throat mic configuration.
• Moisture-proof design.
• Bi-aural audio enhances in-coming speech discrimination.
• HS-9TM is fully compatible with hard hats.

MICROPHONE SPECIFICATIONS

All C-AT headsets employ the same highly-directional, noise canceling two-wire, subminiature, capacitor microphone element designed to meet military specifications. The C-AT microphone assembly includes an electret element of the highest quality and reliability, and integral FET pre-amplifier enclosed in a weatherproof, shock and vibration resistant assembly.

Frequency:                100 Hz to 5 KHz (+/-2dB)

Sensitivity:                 -63 dB re 1V/microBar into 10K Ohm load

Supply Voltage:         +1 to 20 VDC

Impedance:                3.5 Ohms (+/-10%)

Maximum THD:          3% at 1KHz (120 dB SPL)

Current Drain:            40 microamps nominal

 

SPEAKER  SPECIFICATIONS

Output level @ 1KHz with

30mVRMS drive level :              89+/-3dB SPL

Impedance:                             1KHz with 30m Vrms drive level (89+/-3dB SPL)

Acoustic output level:               (+15dBv drive) 110dB SPL

Frequency range:                     400-4000Hz

DC resistance:                         30+/-15% ohms @ 1KHz

Impedance:                             150+/-15% ohms @ 1KHz

Hearing aid compatible per EIA RS 504'83 specification

Style:
Dual-muff headset with throat microphone (HS-9TM is low profile)