Technical data

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Technical data
HME 100 HME 105 and HME 120 HMD 120
Headphones
Transducer principle dynamic
Ear coupling circumaural, closed
Frequency response 45–15,000 Hz
Nominal impedance 150 Ω, mono, 300 Ω, stereo 150 Ω, mono 16 Ω, mono
Attenuation > 10–40 dB
Contact pressure approx. 10 N
Microphone incl. preamplifier
Transducer principle electret mic capsule, electret mic capsule, dynamic,
noise-compensated noise-compensated noise-compensated
MKE 45-1 MKE 45-1 M-87/AIC
Frequency response 300–5,000 Hz 300–5,000 Hz 500–4,000 Hz
Sensitivity – – 1.8–4 µV/74 dB bei 5 Ω
Max. sound pressure level 120 dB 120 dB –
Min. terminating impedance 150 Ω 150 Ω –
Output voltage 400 mV ± 3dB 400 mV ± 3dB –
at 114 dB at 114 dB 
(as per RTCA/DO 214) (as per RTCA/DO 214) 