5.1 to 7.1 problem

[Striki]

i have a doubt. i have a 5.1 system and want to upgrade it to 7.1. the problem is my sofa is against the wall. What should i do? won't speakers be to close to me if i put them right behind the sofa?

 

[Ian J]

I have the same problem which is why I have stayed with 5.1. One alternative that I was suggested was in ceiling speakers but it seemed like too much bother .