are rear surround sound speakers having same sound


Are rear surround sound speakers being feed the same signal? So there is no stereo signal at the back on 7.1 ht set up.
cip57
Post removed 
Very nice when you hear clear surround sound. By the way, I saw a system that sounds good. https://geeklah.com/best-wireless-surround-sound-system.html
7.1 source material.

https://www.youtube.com/watch?v=qHcZfzwmEbs
You may need forego using the above youtube link and go directly its address. 

https://forum.blu-ray.com/showthread.php?t=159814