Advertisement
Quick Links
HME 25-1
Headsets |
Communications Headset
General Description
The HME 25-1 headset features dynamic, closed headphones and a broad-
cast quality MKE 2 Red Dot omni-directional close-talk microphone. It has
been designed specifically for use in noisy environments. Background
noise attenuation is achieved by the extreme closeness of the micro-
phone to the mouth. In addition, omni-directional microphones do not
suffer from increased low frequencies (proximity effect) and so give a
natural sound at close talking distances.
Features
Broadcast quality microphone with superb transmission qualities
due to extremely flat frequency response
Very light
Two-piece padded headband, exceptionally comfortable
Microphone can be worn on either left or right-hand side
Delivery includes: 1 HME 25-1
1 MZW 1410 windshield
Recommended Accessories
Velour ear pads (1 pair)
HZP 25 hygiene pads
Replacement Parts
Ear pads (1 pair)
MZW 1410 windshield
Technical Data
Headphones
Transducer principle..............................................................dynamic
Ear coupling .........................................................supra-aural, closed
Frequency response ................................................. 30 – 16,000 Hz
Characteristic SPL .......................... 102 dB ± 3 dB at 1 kHz, 1 mW
Nominal impedance .................................................. 600 Ω per side
Load rating............................................................................. 200 mW
THD ................................................................................................0.5 %
Contact pressure ..........................................................approx. 3.3 N
Weight (without cable)..............................................approx. 190 g
Microphone
Transducer principle................................. back-electret condenser
Frequency response ................................................. 40 – 20,000 Hz
Pick-up pattern ....................................................... omni-directional
Sensitivity (free field, no load, 1 kHz)...........................6.7 mV/Pa
Min. terminating impedance ..................................................4.7 kΩ
Operating voltage............................................................ 5 – 15 V DC
Connections
Connection cable............................1.8 m, steel cable, open-ended
Cat. No. 069417
Cat. No. 077900
Microphone frequency response (near field)
Cat. No. 040179
measured with B&K 4227 artificial mouth (94 dB SPL, distance of 6 mm)
Cat. No. 028718
Microphone Pick-up Pattern
90∞
125 Hz
250 Hz
500 Hz
1000 Hz
0∞
0
30∞
30∞
5
10
60∞
60∞
15
20
25
dB
90∞
120∞
120∞
2000 Hz
4000 Hz
150∞
150∞
8000 Hz
180∞
16000 Hz
Cat No. 003374
microphone capsule
Advertisement
