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Sennheiser HMDC25
General Description

The HMDC25 headset features dynamic, closed headphones giving excellent attenuation of
background noise, and an MD 414 super-cardioid close contact dynamic microphone. It has
been designed specifically for use in noisy environments.

AuSIM part number: AuSEN-HMDC25
Headphones can be ordered through AuSIM's on-line eCommerce site ... ORDER

  • Microphone with superb transmission qualities
  • Very light
  • Two-piece padded headband, exceptionally comfortable
  • Microphone can be worn on either left or right-hand side
  • Greater intelligibility
  • Very comfortable
  • Create a custom fit
  • Adapt to what you are used to
Technical Data
Nominal impedance 600 ohm per side
Characteristic SPL 102 dB ± 2 dB at 1 kHz, 1 mW
Contact pressure Approx. 3.3 N
Weight w/o cable 6.7 oz.
Headphone Transducer principle Dynamic, closed
Frequency response (headphones) 20 - 16,000 Hz
THD, total harmonic distortion < 1%
Ear coupling Supra-aural
Connection cable 1.8 m, steel cable, tin-plated open ends
Microphone Transducer Principle Dynamic (super-cardioid)
Frequency response (microphone) 100-16,000 Hz
Microphone Sensitivity (free field, no load) (1 kHz) 1 mV/Pa
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