Sennheiser HMD 25-1
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Sennheiser HMD 25-1 Product Details
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.
Features
Mircrophone with superb transmission qualities
Very light
Two-piece padded headband, exceptionally comfortable
Microphone can be worn on either left or right-hand side
Technical Data
Transducer principle dynamic
Ear coupling supra-aural, closed
Frequency response 20-16.000 Hz (Headphone)
Sound pressure level (SPL) 102 dB(SPL) +- 2dB at 1kHz, 1mW
Nominal impedance 600 Ohm per side
Load rating 200 mW
THD, total harmonic distortion <1 %
Contact pressure approx. 3,3 N
Weight w/o cable approx. 190 g
Frequency response 100-16.000 Hz (Mikrophone)
Pick-up pattern super-cardioid
Sensitivity in free field, no load (1kHz) 1mV/Pa
Min. terminating impedance 1000 Ohm
Connection cable 1,8 m, steel cable, tin-plated open ends
