Sennheiser HMDC 372 NoiseGard Pilot Headset

Sennheiser Updated: 2009-01-08 RSS
Sennheiser HMDC 372 NoiseGard Pilot Headset

The HMDC 372 is a pilot's headset with closed ear protector headphones and NoiseGard™ active noise compensation for use in helicopters.

Features

* Constant attenuation of up to 40 dB throughout the entire audio range
* Superior 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
* 5 year warranty

Delivery Includes

* 1 HMDC 372 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

Technical Data

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 °C...+55 °C
Storage temperature: -55 °C...+55 °C
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