A:Answer Hi Jcf75,
Thank you so much for your interest in our ST5000 soundbar with Dolby Atmos and DTS:X compatibility!
We apologize, this sound doesn't support rear speakers connection. This soundbar was designed to deliver an immersive, cinematic audio experience at home with three-dimensional surround sound. And, the 7.1.2 speaker channels completely envelop you in sound, even from above. 800W of power and 2 levels of vocal enhancement will ensure you don’t miss a moment of your content. For equalizer, the ST5000 features customizable speaker settings. You can adjust the gain in the setup menu. In the home menu go to setup>Speaker Settings>Level and you can set the level for your front speakers, Height speakers, and subwoofer. You can also want to set the distance to ensure the best quality.
I hope this helps!
Thanks again for considering Sony!
- Romeo