Model NC1000A the next stage of technological development of NAVCOMM. After a series of passive headphones came time to design the next one with active electronics. Built-in ANR module allows in a way that is not reachable for passive solutions reduce the level of external noise especially in the low frequency range, which are the most burdensome for the ear, and the most difficult to reduce using only the shielding shell.
More about an ANR system can be read in our brochure placed in "FAQ" block.
2801 Item Items
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|Noise reduction method||Passive + active|
|Passive noise suppression||-24dB|
|Active noise suppression||-23dB|
|Speakers frequency response||20-17000Hz|
|Speakers impedance||150 Ohm (mono), 300 Ohm (stereo)|
|Speakers effectiveness||95 +/-5 dB SPL|
|Microphone type||electret with noise cancellation (basic model)|
|Microphone frequency response||100-8000 Hz|
|Microphone impedance||220-2200 Ohm|
|Microphone sensitivity||-33 dB +/-4 (basic model)|
|Connector type||PJ 055, PJ068 (basic model)|
|Power consumption||40mW (średnio)|
|Power supply||battery, 2 x 1,5V, AA type|
|Volume control||Yes, independent L/R|
|Mono / stereo switch||Yes|
|Detachable cable (multi pin connector)||Optional|
|GA microphone preamp||Yes|
|Ear seals type||Gel|
External construction of NC1000A model does not differ significantly from our earlier headset models and consists of: ear cups (available in three colors: gray-green, black or orange), equipped with gel seals and additionally cotton overlays, steel headband with adjustable fit size, a soft top pad, mounted on the hybrid arm (wire frame connected by the hinge with "gooseneck") microphone and the arm connection kit allowing to set the microphone in the desired position.
Moreover, the handset is equipped with five feet, reinforced with additional braided cable terminated with a standard PJ (PJ052 and PJ068) plugs. In the middle of the cable length has a built-in module responsible for power supply control.
The passive electronics consists of an electret microphone with noise compensation or optional differential dynamic microphone, preamp and two pairs of inserts speaker with an impedance of 300 and 32 Ohm.
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