Room setup: sound optimisation vs livability

[devi63]

I see no alternative to speaker placement 1 and 2. As a room treatment behind the speakers for better bass will not be possible I would recommend to optimize the decoupling from the floor. For optimisarion of higher frequencies You could maybe treat the ceiling e.g. with 2 cm basotect, Most Importanz in the middle between speakers and Your listening positions, the more the better.