Sennheiser HMEC 45-CAP Headset

Sennheiser Updated: 2009-01-08 RSS
Sennheiser HMEC 45-CAP Headset

The HMEC 45 is a very lightweight and comfortable open pilot's headset (boomset) with NoiseGard™ active noise compensation. Different connector and powering versions are available to suit every conceivable cockpit configuration.

Features

* Noise reduction of approx. 10 dB – consequently ATC signal can be decreased
* Lightweight, with soft ear pads
* Two-piece adjustable headband ensures a secure fit
* Boom microphone with noise-compensated electret capsule
* Adjustable microphone boom can be turned through 350° and thus be worn
* FAA and JAA TSO approval C 57 a and C 58 a

Delivery Includes

* 1 HMEC 45 headset
* 1 MZW 45 windshield
* 1 MZQ 2002-1 cable clip
* 1 carrying case for headset and accessories

Technical Data

Transducer principle: dynamisch
Ear coupling: supraaural, offen
Nominal impedance (active/passive): 600 / 160 Ohm
Noise compensation (active): 10 dB +/- 3 dB Bereich 400 - 1.000 Hz
Contact pressure: ca. 1,6 N
Weight w/o cable: 140 g
Transducer principle (Microphone): Electret - MKE 45-2
Max. Sound pressure level (aktiv): 120 dB
Output voltage: 400 mV +/- 3 dB / 114 db/SPL
Operating voltage (stand alone): typ. 16 VDC (8-16 VDC, 8-25 mA)
NoiseGard-Supply: 28 VDC from aircraft via pin 5 of XLR
Specials: NoiseGard on/off switch
Connection cable: 1.8 m einseitig
Connector: XLR-5 für headphones, microphone & NoiseGard power
Frequency response (headphones): 20.....18000 Hz
Frequency response (microphone): 300.....5000 Hz