First, I've attached a very basic image I put together of the space which includes the relevant dimension (I know we're supposed to post the images locally--I think that's how we're supposed to do it, but please let me know if there is a different way to post images locally). I'll begin with some general info, and then I'll ask my questions.
The studio will be used for recording rock bands, so it will get pretty loud. I'm already set on isolation, so I'm not concerned about that. For various reasons, the studio has to be a single room space where the control room and live room will be shared. There's no way around this. There are no impediments in the space--poles, doors, etc, except for those shown in the drawing. There will be soffits that run the length of the room on both sides that will be 2'4" deep and 3' wide. These will contain the HVAC ducting, and will be otherwise filled with rock wool for bass trapping. There will also be a similar soffit that runs along the back wall.
I plan on sort of splitting the space in half, with the front half being the "control room," and therefore basically covering the walls with acoustic treatment (2" deep panels) in this front half, and then for the back half (the "live room"), having treatment on the right wall, but leaving the left wall mostly untreated, with long shelving where I'll hold things like guitar pedals, mics, etc on that left wall. I'll also have large slatfusors on the back wall.
- I would like to flush mount monitors on the front wall (closest to the top in the image), but I'm not clear on how I go about determining where (horizontally speaking) they should be placed on the wall and what angle they should be arranged in order to create the proper equilateral triangle for the designated listening position. Based on my monitors (Guzauski Swist GS3B), I believe that the monitors will need to sit 3' off the floor so that, sitting flat, the listening position height is 4' 10". But I'm not sure about how to figure out the proper angle.
- I'd like the have a couple power outlets in this front wall. What's the best way to accomplish that while still allowing for flush mounting my monitors and then treating the front wall sufficiently to trap bass and address console reflection?
- In terms of the "control room" I want to make sure I'm addressing reflection from the monitors appropriately. How concerned do I need to be about gear that would be running along those walls--guitar cabs (ideally stacked on top of each other), keyboards, etc--which would be blocking the acoustic treatment on the walls? Is there a height that if I stay below, I'm okay? Or is anything I put along the control room walls going to cause reflections and problems? Is the space very close to the front wall (where the speakers will be mounted) safer space because it's in front of where speaker reflection might occur?
- I would like to install some cabling channels underneath the floor so that I can run cabling from the console and other places to the credenza, but I'm concerned about how doing so will impact sound isolation (this is a 2nd floor space). Is there an approach that is used to "seal up," in some sense, the holes that would be created for these cable runs for sound isolation purposes?