I need to build a 12' section of soundproof wall to partition off my Home Theater space (the former front room). The layout is such that double sliding doors that disappear into the doorjambs would work best, because I don't want the doors to swing into the entry space or out into the room. I've seen prehung units such as this at the local home center, but these of course are made for 2X4 stud walls without soundproofing. Making this wall 6-8" thick is not an issue, if that's what is required. Has anyone built such a partition before, and what were the construction details? Also, what type of door (solid versus hollow core) is the best in this application? Gary PS - Although I've never built a Home Theater, I have some experience remodeling two earlier homes, including constructing partitions and installing prehung doors and windows, and finish carpentry.