My Linbrook System Is are in a 14X16 room with two openings (one to a hallway on one side behind the left speaker and the other to a small room on the other side behind the other speaker), and I would say they are large for *my* room (even though they sound fabulous despite this). Personally for a 12 X 12 room I would recommend the Linbrook System II (or even the Linbrook Signature Monitors). I have heard the System II, and it gives you a good deal of the sound of the I, while being a better match for the 12 X 12 room size. With your current room size the System I would be ideal.
---Dave
---Dave