If you have at least 200 watts I would recommend the Aerial 8B. They have been replaced by the 9 but Aerial still has a few pairs left(I am thinking about getting another pair). The 8B is down 2 db at 28 hz but it feels like they go even lower. They are big and heavy but can fill a room without strain. The B version has much tighter bass than the original. They are not a flashy speaker and do not call attention to themselves. I use mine for 2 channel and theater. They can shake the walls if you feed them enough power. I use 1000 watt Mac monos. I have never worried about blowing them up; a rare trait, in true audiophile speakers.