If the space is a 'general purpose' room (living / bedroom with a AV system, sofa, furniture, etc.), there may not be enough room for 2 or more subs. My 505 sq. ft. studio apt. is divided into a 'office/sleeping' area and 'living room TV' area. I've only room for 2 compact subs. I don't even have room for one big great sub, unless I get rid of a lot of furniture.