Sennheiser HMD 46-31-II Audio Headset (Supercardioid / Dynamic) 300ohms Per System - Cable not included

ITEM #: SENN-HMD46-31-II MFG #: HMD46-31-II

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HMD46-31-II - Overview

Sennheiser's HMD 46-31-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-canceling 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
     
  • Specifications:

    • Color: black
    • Impedance: 300Ω
    • 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: 0.33Lbs (150g)
    • Storage Temperature: -67° to 158°F (-55° to 70°C)
    • Operating Temperature: 5° to 131°F (-15° to 55°C)
    • SPL for Peak Deviation: 95 dB (1 kHz, 1 mW)
     
  • Item Includes:

    • 1x Headset HMD 46
    • 1x Cable clip
    • 1x Wind and pop screen
    • 1x Safety Guide
    • 1x Quick Guide
     

California Residents:
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov