Specifications:295/295959-hmec_45.pdf file (07 Jan 2024)
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Sennheiser HMEC 45 Headphone PDF Technical Data (Updated: Sunday 7th of January 2024 09:22:10 PM)
Rating: 4.2 (rated by 73 users)
Compatible devices: SK 500 G3 - FREQUENCY SHEET, EZL 1030-20L, HDR HDR160, M2 IEBT, RS 220 -, CX Sport, CX200, SET 55 TV.
Recommended Documentation:
HMEC 45 NoiseGard™ Headsets | Pilot´s Headset with NoiseGard™ Active Noise Compensation General Description The HMEC 45 is a very lightweight and comfortable open pilot’s head- set (boomset) with NoiseGard™ active noise compensation. Different connector and powering versions are available to suit every conceivable cockpit configuration. Features Noise reduction of approx. 10 dB – consequently ATC signal can be decreased Lightweight, with soft ear pads Two-piece adjustable headband ensures a secure fit Boom microphone with noise-compensated electret capsule Adjustable microphone boom can be turned through 350° and thus be worn on either side FAA and JAA TSO approval C 57 a and C 58 a Delivery includes: 1 HMEC 45 headset, 1 MZW 45 windshield 1 MZQ 2002-1 cable clip Recommended Accessories HZH 60 hygiene pads (100 pairs) Cat. No. 003553 HZP 45 comfort hygiene pads Cat. No. 091592 Replacement Parts Ear pads(1 pair) Cat. No. 046581 MZW 45 windshield Cat. No. 075823 Technical Data Headphones Transducer principle..............................................................dynamic Ear coupling ...........................................................supra-aural, open Frequency response .................................................20 – 18,000 Hz Impedance active/passive ...............600 Ω/160 Ω (2 x 1,200 Ω/ 2 x 320 Ω connected in parallel) Nominal SPL.........................................................102 dB/SPL ± 3 dB (1 kHz, 1 mW)...............................................(as per RTCA/DO 214) Active noise compensation.........................10 dB ± 3 dB between 400 Hz and 1 kHz NRR (Noise Reduction Rating) ................................................ 11 dB THD................................................................................................< 1 % Contact pressure...........................................................approx. 1.6 N Weight without cable ............................................................... 140 g Microphone incl. Preamplifier Type....................................................................................... MKE 45-1 Transducer principle..................back-electret condenser capsule, noise-compensated Frequency response .................................................300 – 5,000 Hz Max. SPL ...................................................................................120 dB Output voltage........................................400 mV ± 3 dB at 114 dB (as per RTCA/DO 214) Terminating impedance .......................................................... 150 Ω Operating voltage....................................... 8 – 16 V DC, 8 – 25 mA (as per RTCA/DO 214) General Data Connection cable............. single-sided round cable, length 1.8 m NoiseGard™ supply -CA/-KA...................................................... 2 x 1.5 V AA batteries or 2 x 1.2 V AA rechargeable batteries -KAX ................................................ 12 – 35 V DC from the aircraft, via XLR-3 connector Operating time approx. -CA/-KA........................................................................ Batteries: 80 h Rechargeable batt.: 20 h Switch -CA/-KA ...................................Battery/NoiseGard™ on/off Indicator -CA/-KA ...................................... green LED for Power On Connector(s) -CA ............................................................................................... XLR-5 -KA Headphones ..................................... 1/4” stereo jack (6.3 mm Ø) (converted to mono) Microphone ..................................................... PJ-068 (5.25 mm Ø) -KAX Headphones ..................................... 1/4” stereo jack (6.3 mm Ø) (converted to mono) Microphone ..................................................... PJ-068 (5.25 mm Ø) NoiseGard™ supply .................................................................. XLR-3 Cat. No. 004498 HMEC 45 Cat. No. 004497 HMEC 45-CA Cat. No. 004498 HMEC 45-KA Cat. No. 004649 HMEC 45-KAX
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