17
16
boom
microphone
headphone
capsule (left)
compensation
microphone (left)
compensation
microphone (right)
headphone
capsule (right)
compensation
circuit (right)
6-pin
Redel
plug
microphone
amplifier
compensation
circuit (left)
PJ 068
plug
6,35 mm
plug
boom
microphone
headphone
capsule (left)
compensation
microphone (left)
compensation
microphone (right)
headphone
capsule (right)
compensation
circuit (right)
microphone
amplifier
compensation
circuit (left)
HMEC 25-6A block diagram
HMEC 25-KAP-2 block diagram
Technical data NoiseGard
™
HMEC 25-6A / -KAP-2
Headphone
Transducer principle
dynamic, open, supra-aural
Frequency response
16 Hz - 22 kHz
Impedance active/passive
200 / 180
Ω
(mono)
400 / 360
Ω
per side (stereo)
same volume for active and passive
THD
< 1 %
Compensation active
15 dB
±
3 dB between 100 Hz and 2 kHz
Frequency response of
the active compensation
50 - 600 Hz
Microphone incl. preamplifier
Transducer principle
Noise-compensated back-electret condenser
microphone capsule
Frequency response
300 Hz - 5 kHz (as per RTCA/DO-214)
Max. sound pressure level
120 dB
Output voltage
400 mV
±
3 dB at 114 dB
and a distance of 6 mm
(as per RTCA/DO-214)
Terminating impedance
150
Ω
Operating voltage
typ. 16 V DC, approx. 8 - 25 mA,
connections as per RTCA/DO 214
General data
Contact pressure
approx. 2.5 N
Weight without cable
170 g
Cable
single-sided, total length 1.8 m
Connectors HMEC 25-6A:
6-PIN Redel
HMEC 25-KAP-2:
headphone: 6.35 mm (1/4") jack plug
microphone: PJ-068, 5.25 mm
Power supply NoiseGard™-
12 - 35 V DC
Current consumption
typ. 18 mA
Содержание HMEC 25-6A
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