HMD 25-1
Headsets | Communications Headset
Cat No. 003373
General Description
The HMD 25-1 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.
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Technical Data |
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Headphones |
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Transducer principle.............................................................. |
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dynamic |
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Ear coupling......................................................... |
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supra-aural, closed |
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Frequency response................................................. |
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20 – 16,000 Hz |
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Characteristic SPL.......................... |
102 dB ± 2 dB at 1 kHz, 1 mW |
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Nominal impedance .................................................. |
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600 Ω per side |
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Load rating............................................................................. |
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200 mW |
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THD................................................................................................ |
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< 1 % |
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Contact pressure .......................................................... |
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approx. 3.3 N |
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Weight (without cable) |
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approx. 190 g |
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Microphone |
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Transducer principle.............................................................. |
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dynamic |
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Frequency response............................................... |
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100 – 16,000 Hz |
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Pick-up pattern........................................................... |
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super-cardioid |
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Sensitivity (free field, no load, 1 kHz).............................. |
1 mV/Pa |
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Min. terminating impedance..................................................... |
1 kΩ |
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Connections |
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Connection cable........... |
1.8 m, steel cable, tin-plated open ends |
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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
Delivery includes: 1 HMD 25-1
1 MZW 414 windshield
Recommended Accessories |
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Velour ear pads (1 pair) |
Cat. No. 069417 |
Replacement Parts |
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Ear pads (1 pair) |
Cat. No. 040179 |
MZW 414 windshield |
Cat. No. 0 25512 |
Microphone frequency response (near field)
measured with B&K 4227 artificial mouth (94 dB SPL, distance of 6 mm)
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