Nickbuol and Jakewash(Jason),
The media room will be completely walled on three sides and partially walled on the 4th side. It is rectangular... the short sides are 15' and the long is 20'. The opening on the 4th side is 14' and begins at the short side, leaving about 6' of wall on the otherside. I'm sure that ideally I would close off the room, but it will flow into another room which is going to hvae a pool table and a bar. The ceiling of the media room will be 9' which is higher than the rest of the basement so there will be about a foot of wall coming down from the ceiling at the entrance(the 4th side).

The more I think about it the more I'd like to soundproof as much as I can. Which will likely mean that I'm soundproofing the pool room and the bar area as well.

FYI: The in-law suite is used only as a guest room.

Let me know what other info I can provide and thank you!