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Old Dec 12, 2011, 08:11 AM
Crash Test Dummy
Pilot_Tony's Avatar
Youngstown, PA 15696
Joined May 2002
478 Posts
Trader Rating: 118
For Sale
Sennheiser HMEC-25-CAP ANR Pilot Headset

1 slightly used headset in great condition. Asking $400 or best offer plus shipping, sell new for $680. Please PM with any questions.

Factory specs:

* Very lightweight -less than 7 ounces (190 grams)!
* Two-piece adjustable headband ensures excellent comfort
* Robust
* Excellent transmission of speech due to noise-compensated condenser microphone
* Flexible mic boom, can be worn on either left or right-hand side
* Single-sided cable
* 15 dB active noise cancellation
* 16 dB passive noise reduction
* FAA and JAA TSO approval C 57a and C 58a.

Technical Data - Headphone:

Transducer Principle: Dynamic, open.
Ear Coupling: Supra-aural.
Frequency Response: 30 - 16,000 Hz.
Nominal Impedance: 600 ohms (2 x 1200 ohms in parallel).
Characteristic SPL at 1kHz, imW: 100 dB +/- 2 dB
THD: < 1 %
Load Rating: 200 mW.
Contact Pressure: Approx. 3.3 N
Weight (without cable): Approx. 140 g

Technical Data - Microphone Inclusive of Preamplifier:

Transducer principle: Back Electret Noise-Compensated Condenser Microphone Capsule.
Frequency Response at a Distance of 2 cm From Swivel-Mounted MIC Boom: 200 - 8,000 Hz 8
Max. SPL: 120 dB (THD = 1%).
Output Voltage: 170 mV +/- 6 dB at 114 dB and a distance of 6 mm.
Terminating Impedance: 470 ohms.


Connection Cable: 1.8 m, Single-Sided Flat Cable.
Headphone Connector: 5-pin XLR connector
Microphone Connector : Microphone PJ-068 (5.25 mm ).

As HMEC 25-CAP NoiseGard circuit powered via 28VDC from the aircraft via pin-5 of the XLR
connector. 1.8m cable with 5-pin XLR connector.

Headphone Frequency response: 16-22,000Hz, Impedance: 200 Ohms mono
Microphone Frequency response: 300-5,000Hz, Impedance: 150 Ohms
JAA Approved - Part No. 025-230-325

Thanks for looking,

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Last edited by Pilot_Tony; Dec 12, 2011 at 08:17 AM.
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