About 12x12. It sounded okay but on certain tracks the bass was just too much. I'm in an untreated room with no DSP so that could mitigate things. I can do better than the HDI-1600, for sure, but I've tried a lot of speakers in my space and these balance a lot of what I like. I plan to eventually move them to my home theater setup and upgrade to towers when I move, but for apartment living the 1600s are solid bets.I was thinking about the L82's ..what size is the room?