Headset: Model 4DLX
Sensitivity:
104 dB re .0002 microbar @ 1000 Hz, 1mW
Frequency Response:
100-17,000 Hz +/- 5 dB in 6cc coupler
Impedance:
600 ohms nominal, 150 to 1200 ohm source
Weight:
16.8 ounces without comm cable
Weight of comm cable:
3.1 ounces
Shielded cable:
Full floating with independent ground
Noise Reduction Rating:
24 dB
Microphone: Model A9
DC Bias Supply:
8 to 16 volts, not polarity sensitive
Source Resistance:
220 to 2200 ohms
Output Voltage:
370 mV @ 114 dB spl re .0002 microbar
Frequency Response:
Optimized for speech clarity and noise
reduction
Maximum Ambient
Noise Level:
120 dB spl re .002 microbar
Caution:
Bias voltage supplied to the microphone must come from voltage and
resistance ranges specified above. Voltages supplied in excess of those
stated in the specifications can cause microphone failure and void warranty.
The mic audio signal is present between the ring and barrel of the mic plug;
tip is reserved for transmit keyline.
S P E C I F I C A T I O N S
