e9 and e12 MFD

I have the new e9 and e12 MFD. I am using an existing Airmar B744 transducer and have the displays networked together sharing the Quantum radar and the B744. What would I need to use the new chirp downvision technology with these displays? Is it just a new thru hull transducer or do I need a sounder module also? I would un network the displays and use the B744 for one and the chirp on the other.

Thanks!

Tony