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Introducing –
The new S1 Digital Aviation Headset from Sennheiser

Sennheiser introduces the S1 Digital- an innovative aviation headset with fully adaptive digital noise cancellation. At the push of a button- Sennheiser’s exclusive new NoiseGard™ / digital noise-canceling technology accurately analyzes surrounding noise and automatically adjusts the headset volume and noise-cancellation levels to the appropriate settings.

Specially developed for use in single-engine and twin-engine propeller planes- the S1 Digital optimizes communication in the cockpit and with air traffic control (ATC). Other standout features include incredible audio performance; special soft zones where eyeglasses meet the earpads; adjustable contact pressure; a Bluetooth® connection to MP3 players- mobile phones and computers; and a timeless design by BMW Group DesignworksUSA.

NoiseGard™ / digital adaptive noise cancelling technology
“The new Sennheiser S1 Digital is in the truest sense a quiet revolution in the General Aviation headsets product segment-” explained David Dunlap- Director Sennheiser Aviation at Sennheiser. “It is a pilot’s headset with fully adaptive digital noise cancellation and many user customizable features.” For pilots- this means that the headset no longer uses fixed filters and assumed values like conventional active noise reduction (ANR) systems but can continuously be optimized for changing noise conditions- such as during take-off and when cruising altitude has been reached. In this way- the S1 Digital offers optimum protection for the pilot’s hearing.

By pressing the Smart Update button integrated into the ear cup- the adaptive NoiseGard™ / digital circuitry measures the spectrum and intensity of surrounding noises and applies individual filters that are perfectly adapted to the situation. “At the core of the new noise cancelling technology is a particularly powerful digital signal processor-” explained Jörg Buchberger- Business Segment Manager Aviation for Sennheiser. “This processor generates a filter algorithm that specifically reduces the dominant noise proportions.” Fully adaptive noise cancellation is additionally supported by excellent passive noise attenuation.

Safe and reliable communication
The headset’s high speech intelligibility optimizes communication in the cockpit and with air traffic control (ATC). As a person’s perception of higher frequencies begins to diminish in their mid thirties- the S1 Digital has a three-stage treble boost that is separately adjustable for each side and which focuses on speech. In addition- pilots can adapt the sound pressure level individually to their own hearing ability. As in all Sennheiser headsets- the Peak Level Protection feature reliably protects pilots’ hearing against volume peaks above 110 dB. The boom microphone also helps to ensure clear intelligibility. It compensates for surrounding noise and guarantees clear speech transmission with a frequency response of 100 to 10-000 Hz.

Audio quality and operating comfort
The name Sennheiser has been synonymous with top-quality audio for more than 65 years. And the S1 Digital is no exception. It not only offers the best sound quality for cockpit communication- but it also offers superior sound when used for listening to music. What is more- the headphones have a frequency response of 20 to 16-000 Hz. Using a Bluetooth interface on the control unit- the headset can be connected to all devices as an MP3 players- computers- mobile/smart phones or mobile tablets. “To bring out the best from the different audio sources- the headset has two separate audio mixers for communication and music-” Buchberger said. “The ATC signal and mobile phones are reproduced with a narrower band for high speech intelligibility- whereas music is played with a broader bandwidth to provide an excellent sound experience during the flight.”

External devices are conveniently controlled via an intuitive interface. If the mobile phone rings- the music is interrupted- an LED on the control unit flashes and the pilot is given an additional audio signal in the headphones. Calls are taken simply by pushing a button. The ATC signal is always given priority. If Bluetooth and NoiseGard™ / digital are used simultaneously- the headset has an operating period of more than 25 hours.

The design of the headset was developed by Sennheiser in cooperation with BMW DesignWorks USA. Special emphasis was placed on functional details that positively influence the flying experience. A completely new feature is the headset’s individually adjustable contact pressure. “Pilots can now adjust the contact pressure of the ear cups in three stages between five and seven newtons. This enables them to find the perfect balance between a comfortable fit and optimum passive noise attenuation-” Buchberger explained.

Also new are the ear cushions with a soft- flexible zone for the temple arms of glasses to provide extra comfort when wearing (sun) glasses. The design- with a sleek black finish with metallic elements- is rounded off by the attractive shape of the headband and ear cups that is reminiscent of the sweep of a wing.

The S1 Digital headset comes complete with a carrying case- a belt clip- a windshield- a cable clip and a user’s manual.

www.sennheiser-aviation.com/S1 For the location of an S1 Dealer near you- go to our web site and click on the S1 Dealer locator.

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