I'm working on a rehab project for our school's student center, and we're installing an audio system. The size of the room is 91 feet long, 40 feet wide, with a ceiling height of 12 feet. We have designed the space to have no front, and have arranged 8 speakers to be placed evenly around the long ends of the room. I need help in determining quantity of subwoofers, and locations. The room has been designed to be split in half, and can be controlled independently only using 4 speakers to a half, if desired. With this being said, I would imagine at minimum 2 subs, one for each half. Will one sub suffice for an area of that size? I'm also taking recommendations on speaker/sub brand and sizes. Thanks!