David Clark Headset
(Standard Civilian)
ANR Upgrade Kit

FITS ALL CIVILIAN DAVID CLARK MODEL HEADSETS EXCEPT FOR DC H20-10.

Kit is complete with all parts and materials to upgrade your David Clark headset with state of the art ANR technology.

Kit installation is straight forward as per the enclosed instructions. (See the diagram below for mono headset or Stereo Headsets Diagram.)

Designed to fit most headsets for use in general and commercial aviation aircraft with high impedance (300 Ohm) audio systems.

Note: It is necessary to have a good quality of ear seals to create the airtight environment necessary for the ANR system to function properly. The David Clark Flo-Fit gel ear seals are compatible with our ANR system. Older foam filled or oil filled ear seals should be replaced. Even gel ear seals will flatten in spots in time and must be changed often every 3-5 years. If your ear seals are not in good shape, you will experience problems with sealing and the ANR performance will be affected. Consider replacing them with a new set of Gel Ear Seals. Oregon Aero's SoftSealÆ may also be used.

Wiring Diagram for Mono Headset with One Volume Control