User's Manual

24
RECD unit
Before proceeding with the test, the speaker of the RECD unit must be
equalized and the microphones calibrated. The operation requires that the
coupler microphone and the reference microphone, suitably aligned one
with another, should be positioned on the speaker of the RECD unit as
illustrated in the image below.
For further information, refer to the heading entitled Coupler measurements
in Maestro – Fitting and hearing aid test functionalities – User manual.
To enable correct connection of the coupler to the various types of hearing
aid available on the market (e.g., BTE, CIC, ITE, …), the accessories
include different types of adapters, illustrated in the image below.