Okay, made some good progress the past week.
First order of real business is fixing the symmetry of the front of the room. I had to have a weird "bump" in one side of my front wall in order to get the width and depth of the room that I wanted (it follows the foundation). When Bryan (Pape who is helping me with acoustic design this time) saw that he about had a heart attack
. So, we are building a mirrored bump out on the other side.
So, since we have to build this thing Bryan decided lets take advantage of it and do something useful with it. So, we're turning the front part of it into a sealed panel absorber to help tame some of the bass down under 70hz.
First just frame it out normally:
Then the inside of the front wall is covered with 3/4" MDF (man what a pain to work with...):
and sealed air tight with caulk:
both sides to be sure:
Then I filled the inside cavity corner with some R-19 being sure to cover the ceiling and wall for tri-corner coverage (I put the ceiling treatment up after this pic):
Not sure if that's gonna do much inside of this walled off space, but it can't hurt.
Then fill the joist cavities in the side wall with R-19:
And cover the side wall with drywall (rough finish because this will all be invisible):
I have to wait for my OC703 to arrive to finish the absorber part. So to be continued...