21
Connector assignment
Frequency response
(headphones)
8–28,000 Hz
Frequency response
(TalkThrough)
300–5,000 Hz
Nominal impedance passive 150
Ω
mono/300
Ω
stereo
Nominal impedance active
600
Ω
mono/1.200
Ω
stereo
Sound pressure level
passive 98 dB at 1 kHz, 1 V
active
100 dB at 1 kHz, 1 V
THD at 94 dB SPL
< 1 %
Noise attenuation
13–34 dB passive attenuation, plus 16–25 dB active noise
compensation at low frequencies
Contact pressure
approx. 8 N
Microphone incl. preamplifier
Type
BKE 46
Transducer principle
pre-polarized condenser microphone, noise-compensating
Frequency response
350–6,000 Hz
Output voltage
80 mV/Pa (factory preset) =
800 mV at 114 dB SPL –2 dB
(adjustable from 17–100 mV/Pa)
Terminating impedance
150–2,200
Ω
Supply voltage
8–16 V
¼” (6.35 mm) jack plug
5.25 mm jack plug
1 Audio Hi left
2 Audio Hi right
3 Audio Lo
1 not assigned
2 Microphone Hi
3 Microphone Lo
