My family room is 15x20 with 8' ceiling, carpet and upholstered furniture. I have small (non-Polk) bookshelf speakers for mains, a center from the same manufacturer, some no-name surrounds and a BIC H100 sub. 90% of use is TV or movies, rarely used for music.
Was thinking that something like the Polk RM75 or RM85 series would provide a more cohesive sound but I'm wondering if they are too small for my room. Is there a rule of thumb on the max size room for which satellite type speakers are suitable?