General Data - Sennheiser NoiseGard HMEC 45-CA Instructions For Use Manual

Technical data NoiseGard
Headphone
Transducer principle
Frequency response
Impedance
THD
Active compensation
Mikrophone incl. preamplifier
Transducer principle
Frequency response
(2 cm distance between mic
and corner of mouth)
Max. sound pressure level
Output voltage
Terminating impedance
Operating voltage

General Data

Contact pressure
Weight without cable
Cable
Connectors
Power supply
Operating time
Display
Supply schedule
Subject to alterations.
®
HMec 45-KA / -CA
active
passive
HMEC45-KA
HMEC45-CA
dynamic, open
20 Hz - 18 kHz
600 (mono) 1.2 k
160 (mono) 320
same volume for active and passive
< 1 %
10 dB 3 dB between 400 Hz and 1 kHz
Noise-cancelling back-electret condenser
microphone capsule
300 Hz - 5 kHz
120 dB (THD 1 %)
400 mV 3 dB at 114 dB SPL
(as per RTCA/DO-214)
150
8 - 16 V DC, 8 - 25 mA
connections as per RTCA/DO-214
approx. 1.6 N
140 g
single-sided, total length 1.8 m
headphone: PJ-055, 6.3 mm (1/4")
microphone: PJ-068, 5.25 mm
XLR-5
2 x 1.5 V AA type alkaline-manganese batteries
or 2 x 1.2 V AA type rechargeable batteries,
600 mAh
batteries: approx. 80 hrs
rechargeable batteries: approx. 20 hrs
green LED for indicating battery
and noise compensation status
1 HMEC 45-KA or HMEC 45-CA
per side (stereo)
per side (stereo)