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Sennheiser S1 DIGITAL

Digital ANR Aviation Headset

Informational Purposes Only
Sennheiser - Discontinued - 504212

5-year Manufacturer Limited Warranty


Click the links below to view Sennheiser's videos on the S1 Digital headset:
The S1 DIGITAL aviation headset incorporates the latest in digital technology. Featuring NoiseGard™ / digital noise compensation and excellent passive noise attenuation, the headset is currently the only one on the market that provides optimum protection against cockpit noise over the entire frequency range. The S1 DIGITAL has been designed for use in noisy one- and two-engine propeller aircraft and helicopters.
  • Smart Update digital ANR customizes noise reduction to the user's aircraft environment
  • Headband tension adjust for customized comfort
  • Foldable ear cups
  • Treble boost for customized audio clarity
  • Peak-level protection for hearing protection
  • Ear pad comfort zones end squeeze on your glasses
  • Specially designed communication and music filters optimize sound quality
  • Bluetooth phone and music connectivity
  • Built-in mic bias voltage for cell phone use
  • Fail safe operation - headset can be used as a conventional, passive headset in case of power failure
Transducer principle
Ear coupling circum-aural, closed
Transducer principle
20 - 16.000 Hz
Nominal impedance
180/130 Ohm mono, 360/260 Ohm stereo
Sound pressure level (SPL) 98 dB SPL at 1kHz, 1V, 90 dB at 1 kHz, 1mW
Max. Sound pressure level
115 dB at 1 kHz
THD, total harmonic distortion 1% at 98 dB SPL
Contact pressure approx. 5 - 7 N

Transducer principle
BKE S1-P pre-polarized condenser microphone, noise-compensating
Frequency response
100 Hz - 10.000 Hz
Output voltage 20 - 80 mV/Pa adjustable, 35 mV/Pa factory pre-set
Impedance 150 - 2.200 Ohm terminating
Operating voltage (stand alone) 8 - 16 VDC
Weight w/o cable approx. 410 g / approx. 14.5 oz
Cable length approx. 1.9 m / approx. 6.23 ft.
Connector Headphones 6.3 mm /
Connector Microphones PJ-068, 5.25 mm (equivalent)
Operating time (Battery) approx. 40 h with lithium batteries AA
Operating temperature -15°C... +55°C
Storage temperature -55°C... +70°C

Bluetooth version Version 2.1 + EDR
Range bis 10 m
Transmission frequency 2,4 GHz - 2,48 GHz
transmission power 8 dBm
Technology HSP, HFP, A2DP, AVRCP supported profiles
Codec SBC
  • S1 DIGITAL headset
  • Transport case for headset and accessories
  • Cable clip
  • Belt clip
  • Wind and pop screen
  • Quick Guide
  • Operating instructions

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