Sennheiser HMDC 322 - Active Noise Cancellation Headsets

£0.00 

The HMDC 322 is a pilot's headset with closed ear protector headphones and NoiseGard? active noise compensation for use in helicopters.

SENNHEISER HMDC 322 FEATURES
• Constant attenuation of up to 40 dB throughout the entire audio range
• Advanced transducer design ensures excellent speech intelligibility
• Electronics fully integrated into headphone capsules
• Can be used as conventional headphones when supply voltage is switched off
• Noise-compensated, low-resistance M-87/AIC dynamic boom microphone for superior speech transmission

SENNHEISER HMDC 322 SPECIFATIONS
Transducer principle (Headphones): dynamic
Ear coupling: circumaural
Nominal impedance (active/passive): 50/35 Ohm-mono
Attenuation (active + passive): > 25 - 40 dB
Contact pressure: ca. 10 N
Weight w/o cable: 370 g
Transducer principle (Microphone): dynamic - M-87/AIC
Output voltage: 1.8 - 4 uV/74 dB at 5 Ohm
Operating temperature: -10 degC...+55 degC
Storage temperature: -55 degC...+55 degC
NoiseGard-Supply: 12 - 35 VDC, ca. 27 mA, max. 80 mA
Specials: NoiseGard on/off switch
Connection cable: coiled
Connector: U-174/U headphones & microphone, XLR-3 NoiseGard power, volume control for headphones
Frequency response (headphones): 45.....15000 Hz
Frequency response (microphone): 500.....4000 Hz

SENNHEISER HMDC 322 PACKAGE INCLUDES
1 HMDC 322 NoiseGard?
1 x 3-pin input socket for aircraft's internal power supply
1 carrying case for headset and accessories
1 MZQ 2002-1 cable clip


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Sennheiser HMDC 322 - Active Noise Cancellation Headsets - Sound and Light

  Sunday 31 May 2020       


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