I started this project a couple years ago and am now circling back. Having finished framing/plumbing/powering the rest of the basement, I'm now allowed to think about a mix room again
![Smile :)](./images/smilies/icon_smile.gif)
My questions are about treatment, not about isolation. I don't really have any isolation goals and am not sealing off the room to be airtight or anything like that. I'm not concerned with sound getting in/out since I don't have the money to do it right at the moment and my wife isn't worried about it
![Smile :)](./images/smilies/icon_smile.gif)
As you can see in pics, I'm in a corner of the basement, and the room is 20'6'L x 10'6"W, with a 7'6" ceiling. The front and left walls, when facing the monitors, are cinder block and the back and right walls are alternating studs on 2x6s, just to make the walls a little thicker and stop a little bit more sound than "normal".
1. Does my start at a design make sense? The left/right angled wall would be slotted, and are angled around 6º, which works out with my ray tracing also. Corners right now are super chunk, although I'm considering just 4" panels top-to-bottom because the electrical panel is behind the left trap and I need to be able to get to it, which is also a big reason I'm not building soffits for my speakers. In addition, I'm planning to put angled panels in the wall-ceiling corners on both sides and the front, and the rear wall will be a diffuser or slot wall in the middle.
2. I'm unsure if I should put gypsum on the left rear wall, or not. If I do, it would be symmetrical with the right wall, which will be gypsum, and then I could put treatment on top, but I'd also thought about leaving the studs open and putting cloth over them with the insulation behind it. I would then put absorptive treatment on the right wall as before, but I'm a little worried there would be too big a difference in the sound back there in that case, since the treatment wouldn't really be symmetrical. The other thought was a slot wall on the left instead of gypsum or cloth, since it'll be 3.5" of insulation either way.
3. I'm also curious if regular fluffy is ok behind the slotted walls, or if there's a big benefit to Roxul back there? I guess the same question applies to the super chunk corner traps.
Thanks for everything!