CI and EAS Audio Processor

These support guides will help you handle and care for the SONNET 2 & SONNET 2 EAS Audio Processor.

Direct Audio Input

For the best sound quality, connect your audio processor to your phone or other device with a Direct Audio Input Cable. This is a great way to listen to music, and it's easy to connect with SONNET 2's FM Battery Pack Cover.

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Insert the 3-pin plug of the direct audio input cable into the port of the FM Battery Pack Cover.


Insert the 3.5 mm plug of the audio adapter cable into the headphone port of the audio device.

Attach the FM Battery Pack in the same way you attach the standard battery pack cover.

Direct Audio Input Cables

The mixed source cables provide a balance of audio processor microphone and external audio input. The external cables provide mainly input from the external audio device. Unilateral cables are for connecting one audio processor. Bilateral cables are for connecting two audio processors.


Unilateral Mixed Source


Unilateral External Source


Bilateral Mixed Source


Bilateral External Source


Refer to your user manual for more information.