Thank you all for your replies. They are greatly appreciated. To answer further questions posted my budget is $1,500-2,000 for one sub now. And later after the kids give up their play area i could add another.
My current set up position is located in the middle of the room running my HT the shorter distance of the room. My sofa is 2 feet from the rear wall then 13 feet to the front wall with the tv and Mains. I have 14 feet to my right and 14 feet to my left. These large area to the right and left of me are used my kids, thus I have the middle section. I currently have the sub positioned to the MLA running the short way in-line with the mains. Would I be better to position the sub in the kids area to run the long length of the room, with the sub on an adjacent side way 90 degrees of from the Mains?