angles, dimensions, and ceilings OH MY

[terrible_buddhist]

As always during construction, I have run into some issues...attached is the new mark up of my control room. Here are my questions:

1) Are the angles on the speakers going to be ok, they are equal, but sharper than I had originally hoped.

2) the angled walls, which I imagine will actually be slat absorbers (please correct me if I am wrong) will only be at their deepest a foot, and 52 inches long.

3) My celing height as of now, with NO drywall (framing only) is 80 inches. I can't go any higher than this because of a steel beam that runs across the top which I don't want the ceiling to touch...this is a floated room. So, do I:

a: put 2 angles in the ceiling, starting at the window and going up, and at the rear door going up, creating a peak in the room with no absorbtion on the ceiling.
b: go for a flat celing and try to put much absorbtion on it.
c: anything you can think of as really, I am stumped! Remember, I also have door height to worry about. YIKES, what a pickle!

Please help.

[terrible_buddhist]

I thought it might be wise to note, the outer dimensions are 'usable space', iow, the inside diameter from the outside wall studs.

[lowdbrent]

I would re-thing your monitor angles and the distance to your chair/listening position. They are pitched a bit too far in, and you are too close to them.

[John Sayers]

I agree about the speaker angles - way tooo tight.

As your ceiling is only 80" I'd go with your last suggestion and make it full absorptive.

cheers
john

[AndrewMc]

I have a similar question. I'm close to having to think about the control room ceiling. My ceiling is around 95 inches.

I could cover the ceiling with 3" 703 or build in a sloped frame and put in 703 and cover with cloth. Sloped up from the front to just over half way in the room - then flat ceiling from there to the back.

Given my ceiling is a bit higher than the 80" mentioned in this thread - which do you recommend?

Thanks

[John Sayers]

Andrew - that 15" difference is much better.

Yes build a cloud as you suggested but why not add a ply backing to give an additional angular factor. I'd also put insulation on top of the ply because the cavity above will act as a trap.

Buddist - it's been my experience that when you have a very low ceiling if you cover it with a black/dark fabric it doesn't appear to be so low.

cheers
john

[AndrewMc]

Cool deal

Just so I am sure I follow correctly. I've done a side view drawing of the control room. Also a top view.

I'm assuming the sloped section is touching the side walls and sealed. Not shown on the drawing is a 1ft sq HVAC return vent comes through the ceiling near the front, so that would have to extend down.

I'm thinking how to construct that - but it shouldn't be too difficult - maybe build on the floor in sections and lift up then screw into the side walls.

Of course - I could be totally miss-interpreting your suggestion

[edit] correction to 1 dimension below - length of room is 14'2" not 13'9" [/edit]

thanks again

[John Sayers]

Yes Andrew but I didn't intend it to be a sealed system as you've drawn. Just a free unit , made on the floor as you suggested, and hung with chain or wire.

cheers
John

[AndrewMc]

Thanks. That would look pretty cool and be easier to build into the room. I have one limitation with a hanging object - my light wire comes thru in the middle of the room, although I could relocate that. Attached is a drawing showing my understanding of what it would look like size wise.

One thing I am a bit confused on is when you mention adding insulation to the cavity above. As I understand it - the cloud would be a 2x4 frame, 703 in the frame, cloth on the side facing down and thin ply on the side facing the ceiling. I'm not following where the cavity is. Sorry for being dumb

[John Sayers]

Yes - that's the type of cloud I was thinking about.

sorry Andrew - I meant the space between the plywood backing and the ceiling as being the 'Cavity' area

cheers
John