-After seeing Gullfo's design and asking him about the 3-leaf issue in the bathroom I was under the impression that I could build the bathroom with single stud walls and add drywall on the inside for the finish rather than doing a complete room-within-room design.
That's correct: Glenn and I are saying the same thing, but that's not what your floor plan is showing! There's no drywall shown on there,or if there is then it isn't visible. Also, you have to take into account that the drywall you are talking about is technically part of the outer leaf, so it still needs to be decoupled from those studs, which are technically part of the inner leaf. I'd suggest using RC for that, or maybe clips plus hat channel, whichever is cheaper. In other words, the drywall that you see when standing inside the bathroom must connect only to the outer leaf of the building, at both sides, top and bottom, and must not touch the inner leaf (except through the RC).
I figured it would save money since I don't need the isolation in the bathroom.
Correct: the bathroom doesn't need to be isolated, and can be part of the outer leaf, but it should not be part of the "air gap". If you imagine pumping some type of bright pink gas into the air gap at any point, then there must be no way that it could leak into the bathroom: no pink gas. When I look at your "#10" design, I see places where pink gas would pour in.
Would I still just use one door even with the double wall
Yeah, you only really need one door on there: build it along the lines of Rod's "superdoor".
-I've been doing some research on monitor angles in the control room and it seems like a 90º angle at the listening position might help in this layout since it would pull the engineer closer to the ideal 38%
Your room is not a rectangle, and indeed doesn't even have four walls, but rather five, so the 38% "rule" is out the window! That only applies to purely rectangular rooms, so don't sweat it. And even for rectangular rooms, it's still only a guideline for a starting point, not written in stone.
and also allow for a wider window for more sight lines.
That's a really big window, and thick laminated glass that size will be expensive. Yes, it's nice to have fantastic sight lines from the center of the mix position, but there 's something you might be missing here: if you move your head just a foot or so to the left or right, you open up a whole new sight line and field of view, so taking that into account you can shrink your windows while still retaining the same sight lines, saving money on the glass, and improving both your soffits and your geometry.
it seems like a 90º angle at the listening position might help in this layout
90° is a possibility, yes, but it's the extreme limit and I don't think you need to go that far: It stretches out the sound stage, distorts the stereo image, and squashes up the sweet spot, plus with your room shape it messes up the entire concept of soffits, and puts your front window right at the first reflection points for both speakers, to both ears! You would have to use speakers with a very tight dispersion angle to achieve that, and even then you'd still have problems with reflections.
What I would try to do there, is to bring the speakers closer to each other (shrink the window), relax that steep 90° intersect angle until you are no longer getting reflections of your window, and fix the soffit design so that the front panels really are acting as infinite baffles, and completely filling the area between the front wall and the side walls.
What are your thoughts on going down that route vs. the more sought after 60º equilateral triangle?
Both will work fine, if done right. The 90° does give you the much broader sound stage, which is nice as you can place things more accurately, and hear more detail, but that comes at the expense of the sweet spot, which is squished up. As with most things in studio design, it's a compromise.
-I've increased the size of the ISO booth since I figure it would be worthwhile to have the versatility of a drum booth if I ever needed it. Plus extra small booths are just kind of annoying to work in. Seem like a good idea?
Great idea! I was actually going to suggest that, when I saw your #10. It also gives better visibility between the booth and the live room.
I'm feeling better about this design so far
I'm liking it better than the previous ones, too. It's getting better and better!
- Stuart -