Sennheiser HMEC 400 - Active Noise Cancellation Headsets

£0.00 

The HMEC 400 is a pilot's headset with closed ear protector headphones and NoiseGard active noise compensation for use in helicopters, propeller and turbo-prop aircraft.

SENNHEISER HMEC 400 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 boom microphone for superior speech transmission

SENNHEISER HMEC 400 SPECIFATIONS
Transducer principle (Headphones): dynamic
Frequency response (headphones): 45.....15000 Hz
Nominal impedance (active/passive): 300/150 Ohm-mono, 600/300 Ohm-stereo
Attenuation (active + passive): > 25 - 40 dB
Weight w/o cable: 380 g
Transducer principle (Microphone): Electret - MKE 45-1
Frequency response (microphone): 300.....5.000 Hz
Maximum sound pressure level (passiv): 120 dB
Output voltage: 400 mV +/- 3 dB / 114 dB/SPL
Operating voltage (stand alone): typ. 16 VDC (8-16 VDC, 8-25 mA)
Operating temperature: - 10.....+ 55 degC
Storage temperature: - 55.....+ 55 degC
NoiseGard-Supply: 12 - 35 VDC, ca. 27 mA, max. 80 mA
Specials: NoiseGard on/off & mono/stereo switch, Volume control for headphones
Connector: 6,3 mm stereo-headphones, PJ-068-mircophone, XLR-3 NoiseGard power

SENNHEISER HMEC 400 PACKAGE INCLUDES
1 HMEC 400 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
1 MZW 45 windshield


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Sennheiser HMEC 400 - Active Noise Cancellation Headsets - Sound and Light

  Wednesday 23 September 2020       


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