[pietsch288]

The only scientific thing I can come up with is after trapping all the corners with johns mayville fluffy **** (2' X 4' batts- 10" thick), I can walk around to all the corners and at the listening position with an spl meter and I am within 1-3db everywhere in the room. I used to have a null at 28 and 31hz and peaks at 45 and 50hz now I am within 2-3db throughout. But when I reach the spl meter above my head it reads 7-9db more than at ear level. So using what I have learned with the corners I assume that by trapping the ceiling It should bring some of the bass at the ceiling down to me and completly flatten out the frequencies?? Its not putting up insulation thats the work.... it covering the **** things up so it looks good that gets ya :>)