The Sennheiser HMEC 25 is a headset for commercial aviation purposes.  The HMEC-25 comes in three different versions.  The standard HMEC-25-KA headset (detailed below), the HMEC-25-KAS which is a stereo version, and the HMEC-25-KAP Panel Mount 24 Volt.

Features:

• 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
• In-line battery pack.
• Headset Carrying Case included.
• FAA and JAA TSO approval C 57a and C 58a.
• 2 Year warranty.

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.

Connections:

Connection Cable: 1.8 m, Single-Sided Flat Cable.
Headphone Connector: PJ-055 jack (6.3 mm Ø)
Microphone Connector : Microphone PJ-068 (5.25 mm Ø).

Our Price:  $726.00
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