AOPA Pilot Magazine - September 2013 - 89

perfect clarity, instantly cutting music volume whenever the radio or intercom activated,
then slowly fading back in after those prioritized transmissions ended.
Cellphone calls were a slightly different story, albeit in a very small sample of attempts:
Some, although not all, of those called (using a Motorola DROID RAZR M) reported a
degree of distortion or interference, though the pilot—safely stopped—was consistently
understandable. Sound from the other end of the call takes about three seconds to fade
back in after the pilot stops speaking, by design, because of intercom activation. That led
to missing a few words when the person on the other end of the line picked up speaking where the pilot left off.
Chase reported occasional “pops” during ground operations with doors and windows
open and electronic noise cancelling active, a phenomenon he said was identical to his
David Clark X11. Turning off the electronic cancelling solved this, and Chase reported
no such issues in the air. Keller described his longstanding preference for full-coverage
headsets that clamp down hard for maximum passive protection in case the battery dies.
“However, the DC PRO-X made me a believer,” Keller said. “It is very comfortable
to wear, and based on the performance I am quite sure I wouldn’t miss my H10-13X.”
Smaller ear cups allow more air to circulate, and the ear seals remain clear of eyeglass
frames as well. Weighing about 7.5 ounces, with 0.4 pounds of clamping force from the
well-padded magnesium headband, the DC PRO has a way of disappearing.
Eyeing both general aviation and air transport markets, the company has secured
technical standard order approval, aiming to produce a headset pilots can use—and
enjoy—from first flight to wherever wings may take them.
AOPA

David Clark DC PRO-X
Retail price: $637
• Hybrid Electronic Noise-Cancelling Technology (ENC)
• Bluetooth wireless interface
• Dual plugs; requires two AA
batteries (panel-mount version
pending)
• Dual voice coil drivers (ensure
operation in case of battery loss)
David Clark DC PRO
Retail price: $347
• Passive noise reduction version,
no electronic controls
Both sold direct from David Clark
online (www.davidclark.com)

EMAIL jim.moore@aopa.org

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AOPA Pilot Magazine - September 2013

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