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Sennheiser HMEC 250 ANR Headset

The HMEC 250 unites all previous advantages of the best of Sennheiser Headsets: The innovative TalkThrough technology allows talking in the cockpit, without sacrificing the protection of peak level Protection from the improved NoiseGard 2,0. This headset is additionally equipped with a mobile phone socket and an audio entrance so you can use the Headset equally for your Mobile and your favourite music MP player. This headset features an innovative attractive Design making the Sennheiser Headset HMEC 250 a true favourite for the future.

  • Outstanding transmission quality for safe communication.
  • Noise-compensating boom microphone for excellent speech transmission.
  • High noise reduction by active noise compensation NoiseGard TM 2.0.
  • Talk Through function makes direct communication possible
  • High passive attentuation.
  • Folding Design for space saving and transport.
  • Microphone arm flexibly adjustably.
  • Dual volume controls left & right.
  • Super comfortable headband for reduced pressure
  • Audio in for external audio sources (e.g. mobile telephone, mp3).
  • Weight (without cables): approx.. 280 g.
  • Warranty: 3 years!
Sennheiser HMEC 250 ANR Headset with Included Case
Included Custom Sennheiser Bag and FREE CX-300 Headphones worth £39.99 with this headset
Our Price: £379.99
ex VAT: £330.43
Free
worth £39.99 with this item
Qty:
RRP Price: £431.99
You save £52.00 (12.04%)
Manufacturer: Sennheiser
Warranty: 3 Years
Stock Item
Code: HMEC250
Bonus Points: 100
Gallery: click to view
Sennheiser HMEC 250 ANR Headset Sennheiser HMEC 250 ANR Headset Sennheiser HMEC 250 ANR Headset Sennheiser HMEC 250 ANR Headset Sennheiser HMEC 250 ANR Headset
Additional Product Information
 

About Noiseguard 2.0
NoiseGard™ 2.0 was developed by Sennheiser especially for general aviation and is used in most cockpits around the world today. With NoiseGard™ 2.0 sound waves in the low frequency range are simply cancelled out by their own phase inversion (phase inverted sound). To do this, tiny microphones first pick up ambient noise. The NoiseGard™ electronic circuitry then produces a sound waver that is phase inverted by 180° to the disruptive sound – with the result that both sound waves practically cancel each other out. Sounds such as music or speech on the other hand are reproduced practically unchanged and can thus be excellently understood. Communication with air traffic control is therefore considerably easier. In this way NoiseGard™ 2.0 guarantees you quiet and thus safe flying. NoiseGard™ 2.0 optimizes the NoiseGard™ principle through the use of even more powerful processors and improved microphones for detailed pick-up of the disruptive sound. With the help of matching filters, increased active noise compensation of up to 90% is achieved.

Technical Data Headphones Transducer principle . . . . . . . . . . . . . Dynamic, closed
Ear coupling . . . . . . . . . . . . . . . . . . Circumaural
Frequency response (headphones) . . . . . . . . . . . 8.....28000 Hz
Frequency response (Talk Through) . . . . . . 300.....5000 Hz
Nominal impedance passive . . . . . . . . . . . . . . 150 Ù mono, 300 Ù stereo
Nominal impedance active . . . . . . . . . . . . . 600 Ù mono, 1200 Ù stereo
Sound pressure level passive . . . . . . . . . . 98 dB SPL at 1kHz 1V
Sound pressure level active . . . . . . . . . . . . . . . . . . 100 dB SPL at 1kHz, 1V
Distortion factor . . . . . . . . . . .. . . . . . . . . . < 1% at 94 dB
SPL Attenuation (passive) . . . . . . . .. . . . . . 13 - 34 dB
Attenuation (active) . . . . . . . . . . . 16 - 25 dB
Contact pressure . . . . . . . . . .. . . . . . c. 5 N
Microphone incl. preamplifier Model . . . . . . . . MKE46
Transducer principle . . . . . . . . . . . . . permanently polarized condenser microphone, noise-compensated
Frequency response . . . . . . . . . . . . 350 - 6.000 Hz
Output voltage . . . . . . . . . . . . . . . . 40 mV/Pa (factory setting) = 400 mV at 114 dB SPL (17 - 100 mV/P adjustable)
Terminating impedance . . . . . . . . . . 150 - 2.200 Ù
Operating voltage . . . . . . . . . . . . 8 - 16 V DC

General Data
Weight without cable . . . . . . . . . . . . . . . ca. 285 g
Operating temperature . . . . . . . . . . . . . -10.....+55 °C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . -55.....55 °C
NoiseGard supply (alkaline recommended) . . . . 2 x AAA 1,5V
Connection cable . . . . . . . . . . . . . . . . . . . 1.85 m
Connector . . . . . . . . . . . . . . . . . . . . . . . 6.3 mm stereo headphones, 5.25 mm microphone
Extras: mono/stereo switch, line / cell phone input, Peak Level Protection, 60 cm audio cable with 2.5 mm /2.5 mm stereo jack (e.g. Mp3 player), 60 cm audio cable with 3.5 mm / 3.5 mm stereo jack (e.g. cell phone)

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