AuSIM: Products, HMDC25 Headphones

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Sennheiser HMDC25
Headphones

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

Features

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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