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Sennheiser HMD 46-31-II on Sale

Original price was: $419.95.Current price is: $209.98.
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Description

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HMD 46-31-II

Sennheiser’s HMD 46-II Series are lightweight headsets for air traffic controllers and C3 operators requiring excellent sound performance and long-term wearing comfort.

 

Overview

Sennheiser’s HMD 46-II Series of very lightweight, extremely comfortable headsets are designed specifically for all air traffic control communication and C3 (Command, Control & Communications) operators requiring excellent sound and long-term wearing comfort. A noise-cancelling microphone delivers optimum speech clarity for reduced “call-back read-back” events. The headset can be operated in two channel mode. Soft acoustic foam ear pads and patented two-piece automatic headband deliver first class comfort with a perfect, secure fit. A flip away headphone allows for single-sided listening and a reinforced flexible microphone boom allows for left or right sided use. The headsets feature a single sided cable which is easy to exchange. Sennheiser ActiveGard® technology protects users hearing against acoustic injury caused by a sudden sound burst on the line, without interrupting communications – an added safety feature that differs from traditional acoustic shock clipping circuitry. The headset features a dynamic microphone and the series consists of two variants: HMD 46-3-II (double-sided including ActiveGard®) and HMD 46-31-II (double-sided without ActiveGard®)

Features

  • Sennheiser Voice Clarity for accurate communication, provides excellent voice transmission and reception

  • Perfect speech transmission Noise-cancelling microphone filters out ambient noise for optimum speech clarity to reduce “call-back read-back” events

  • Fits every application with a choice of electret dynamic microphone, and single sided or dual sided earcup model

  • Two channel stereo application for multi-channel communication

  • Sound protection from acoustic injury caused by sudden sound bursts on the line with Sennheiser ActiveGard® technology

    • What s in the box?

      • Headset HMD 46
      • Cable clip
      • Wind and pop screen
      • Safety Guide
      • Quick Guide
 

Technical Data

  • Color

    black

  • Impedance

    300?

  • Frequency response (Microphone)

    100 – 12,000 Hz

    • Transducer principle (Microphone)

      Dynamic, noise cancelling, uni-directional

    • Frequency response (Headphones)

      20 – 14,000 Hz

    • Microphone

      Load resistance 150 – 2,200 Ohm

    • THD, total harmonic distortion

      < 1 % at 95 dB SPL (300 – 3,000 Hz)

    • Contact pressure

      2.7 N

    • Ear coupling

      Supra-aural (on ear)

    • Weight

      150 g 5.29 oz

    • Storage temperature

      -55 °C – +70 °C

    • Operating temperature

      -15 °C – +55 °C

    • SPL for peak deviation

      95 dB (1 kHz, 1 mW)

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