Do you need general information or specifics??
Phillips Hearing Aids has done the early research on CIC with their
fitting. Starkey Labs has a lot of research information on canal
resonance and CIC fittings. You may also want to contact Dr. Roy Sullivan
in NY as a reference source. If I can I will try to get you more info.
let me know what your area of work is.
I am an Audiologist and a Hearing Aid Dispenser.
rsiegel663 at aol.com