I'm currently moving into a new(to us) home. It is quite a bit older than my current house, and has plaster walls/ceilings. I have (4) 15" dayton IB's which I will be running off a spare NAD amp I have laying around, or 2 plate amps I was using previously. To the point, should I worry about the plaster? Has anyone experienced this in the past? There is also a very big picture window that will be approx 6 ft from the output of the sub manifold. Anyone had issues with either of these? I know the fiance will be screaming if something breaks. She will be even more pissed if she is there when it happens and sees the big grin across my face. I need to keep the SAF factor up for future projects. Thx everyone.