DAVID CLARK AVIATION HEADSET H10-13 S (NSN 5965-01-447-6273)

A stereo version of the H10-13.4, with a 5 foot straight cord and dual plugs. (Inline Stereo/Mono switch).
DC Part Number – 40422G-01

Molded cord assembly made to exceptional pull and flex standards
The Stereo version of the H10-13.4 with a 5 foot straight cord and dual plugs. (Inline Stereo/Mono switch)
Certified Noise Reduction Rating – 23 dB
Exceeds RTCA/DO-214 Standards
Five-year warranty Ø Made in USA
FAA TSO Approved C-57b, C58a 

FEATURES & BENEFITS

Expanded, super-soft, double foam head pad
Larger, yet lighter, undercut Comfort Gel ear seals
Universal flex boom for perfect microphone placement
Exclusive M-7A, the most advanced noise-cancelling microphone available
Low-profile volume control knob with detent settings 

TECHNICAL DATA

Ear coupling: Around-the-ear
Hardware: Steel
Connector Type: PJ-055 (.25” phone plug)
Connection Cable: ~ 5 ft. (1.5 m) straight cord
Weight w/o cable: ~ 16.5 oz. (488 g)
Dome type: ABS
Characteristic SPL: ~95 dB SPL (1 kHz, 1 mW) @ maximum volume nominal
Contact pressure: ~0.6 lb. (2.7 N)
Total harmonic distortion (THD): < 1% – 110 dB SPL (300 – 3,000 Hz)
Transducer principle: High Fidelity Dynamic
Ear Impedance: 300Ω stereo / 150Ω mono
Ear Freq Response: 10 – 20,000 Hz
Microphone principle: M-7A Amplified Electret
Mic Impedance: 50Ω +/- 20%
Mic Sensitivity: 400mV+/-6dB into 150Ω load @ 1kHz for 114dB SPL input
Mic Freq Response: 300Hz – 3.5KHz per RTCA DO 214
Mic DC Supply V:. 8-16V, not polarity sensitive
Source Resistance: 470Ω 

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DAVID CLARK AVIATION HEADSET H20-10 S (NSN 5965-01-447-6273)

Headset-Mic, over the head Model H20-10 DC Part Number – 40495G-01

Molded cords made to exceptional pull and flex standards
Certified Noise Reduction Rating – 22 dB
Exceeds RTCA/DO-214 Standards
Five-year warranty
FAA TSO Approved C57B, C58a
NSN 5965-01-447-6438 
Made in USA

FEATURES & BENEFITS

Extremely lightweight, made from Advanced Composite Materials
Exclusive Custom Comfort System; patented head pad suspension provides pillow-like comfort, special headband design cradles your head just enough to block noise, contoured gel ear seals mold softly to your head, no exposed overhead cord
Exclusive M7-A, the most advanced noise-cancelling microphone available 

TECHNICAL DATA

Ear Coupling: Around-the-ear
Hardware: Advanced Composite Material
Earphone Plug: PJ-055 (.25” phone plug)
Mic Plug: PJ-068 (.206” phone plug)
Connection Cable: ~ 5 ft. (1.5 m) straight cord
Weight w/o Cable: ~ 19 oz. (562 g)
Dome type: ABS
Earphone Sensitivity: 90 dB SPL on flat plate coupler, re 1mW input @1KHz
Earphone Type: Dynamic
Ear Impedance: 150Ω (300 each; wired in parallel)
Ear Freq Response: 200 – 5,500 Hz :
Microphone Principle: M-7A Amplified Electret
Mic Impedance: 50Ω +/- 20%
Mic Sensitivity: 400mV+/-6dB into 150Ω load @ 1kHz for 114dB SPL input
Mic Freq Response: 300Hz – 3.5KHz per RTCA DO 214
Mic DC Supply V.: 8-16V, not polarity sensitive
Source Resistance: 470Ω