Hi I would like to be able to stream my sound to sound system

http://be.harmankardon.com/harman-kardon-product-detail_be_fr/hk-aura-black-detail.html

I bought it on the apple store : harmon pardon sound system.
I guess it is working on netflix app with apple tv

so is it possible to stream the movie to the google chrome cast
and the sound to the sound system ( it has bluetooth and wifi connectivity )