I owned the Optimum 8 and used in a 13x15x8' room. You don't need any more.
You might also consider the new Rel T7. I just switched to that and found, while not going quite as deep, it has a much nicer upper/midbass and integrates better. It vitally disappears, which I could not get the Velodyne to do.
Both are very good subs for the money and all you need in your room.
You might also consider the new Rel T7. I just switched to that and found, while not going quite as deep, it has a much nicer upper/midbass and integrates better. It vitally disappears, which I could not get the Velodyne to do.
Both are very good subs for the money and all you need in your room.