Aug 7, 2019
I have not connected the soundbar with TV and am using it standalone with Amazon Alexa.
Please advise on how to generate surround sound in the back speakers. Currently they do not generate any sound.
Oct 18, 2017
If your TV sends a Dolby 5.1 signal to your Bose soundbar, it will play as 5.1 through the soundbar and rear surround speakers. It will not play 5.1 from Alexa because that is not a 5.1 signal.
Thank you for your post and welcome to the Community!
@Jimgfits has said is correct.
I would also recommend making sure that your rear speakers are connected in the Bose Music app under the accessory speakers.
I would recommend connecting to a TV and testing the rears with a movie to determine if they are working with your Soundbar.
Let me know how it goes!
Jessie O - Community Support